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arduino-0022

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This commit is contained in:
Eve Entropia 2011-02-23 21:47:18 +01:00
parent 4f99742f03
commit a9ad0e80a0
803 changed files with 69785 additions and 33024 deletions
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15
arduino-0022-linux-x64/examples/1.Basics/AnalogReadSerial/AnalogReadSerial.pde Normal file
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/*
AnalogReadSerial
Reads an analog input on pin 0, prints the result to the serial monitor
This example code is in the public domain.
*/
void setup() {
Serial.begin(9600);
}
void loop() {
int sensorValue = analogRead(A0);
Serial.println(sensorValue, DEC);
}

9
arduino-0022-linux-x64/examples/1.Basics/BareMinimum/BareMinimum.pde Normal file
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void setup() {
// put your setup code here, to run once:
}
void loop() {
// put your main code here, to run repeatedly:
}

19
arduino-0022-linux-x64/examples/1.Basics/Blink/Blink.pde Normal file
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/*
Blink
Turns on an LED on for one second, then off for one second, repeatedly.
This example code is in the public domain.
*/
void setup() {
// initialize the digital pin as an output.
// Pin 13 has an LED connected on most Arduino boards:
pinMode(13, OUTPUT);
}
void loop() {
digitalWrite(13, HIGH); // set the LED on
delay(1000); // wait for a second
digitalWrite(13, LOW); // set the LED off
delay(1000); // wait for a second
}

19
arduino-0022-linux-x64/examples/1.Basics/DigitalReadSerial/DigitalReadSerial.pde Normal file
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/*
DigitalReadSerial
Reads a digital input on pin 2, prints the result to the serial monitor
This example code is in the public domain.
*/
void setup() {
Serial.begin(9600);
pinMode(2, INPUT);
}
void loop() {
int sensorValue = digitalRead(2);
Serial.println(sensorValue, DEC);
}

31
arduino-0022-linux-x64/examples/1.Basics/Fade/Fade.pde Normal file
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/*
Fade
This example shows how to fade an LED on pin 9
using the analogWrite() function.
This example code is in the public domain.
*/
int brightness = 0; // how bright the LED is
int fadeAmount = 5; // how many points to fade the LED by
void setup() {
// declare pin 9 to be an output:
pinMode(9, OUTPUT);
}
void loop() {
// set the brightness of pin 9:
analogWrite(9, brightness);
// change the brightness for next time through the loop:
brightness = brightness + fadeAmount;
// reverse the direction of the fading at the ends of the fade:
if (brightness == 0 || brightness == 255) {
fadeAmount = -fadeAmount ;
}
// wait for 30 milliseconds to see the dimming effect
delay(30);
}

65
arduino-0022-linux-x64/examples/2.Digital/BlinkWithoutDelay/BlinkWithoutDelay.pde Normal file
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/* Blink without Delay
Turns on and off a light emitting diode(LED) connected to a digital
pin, without using the delay() function. This means that other code
can run at the same time without being interrupted by the LED code.
The circuit:
* LED attached from pin 13 to ground.
* Note: on most Arduinos, there is already an LED on the board
that's attached to pin 13, so no hardware is needed for this example.
created 2005
by David A. Mellis
modified 8 Feb 2010
by Paul Stoffregen
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/BlinkWithoutDelay
*/
// constants won't change. Used here to
// set pin numbers:
const int ledPin = 13; // the number of the LED pin
// Variables will change:
int ledState = LOW; // ledState used to set the LED
long previousMillis = 0; // will store last time LED was updated
// the follow variables is a long because the time, measured in miliseconds,
// will quickly become a bigger number than can be stored in an int.
long interval = 1000; // interval at which to blink (milliseconds)
void setup() {
// set the digital pin as output:
pinMode(ledPin, OUTPUT);
}
void loop()
{
// here is where you'd put code that needs to be running all the time.
// check to see if it's time to blink the LED; that is, if the
// difference between the current time and last time you blinked
// the LED is bigger than the interval at which you want to
// blink the LED.
unsigned long currentMillis = millis();
if(currentMillis - previousMillis > interval) {
// save the last time you blinked the LED
previousMillis = currentMillis;
// if the LED is off turn it on and vice-versa:
if (ledState == LOW)
ledState = HIGH;
else
ledState = LOW;
// set the LED with the ledState of the variable:
digitalWrite(ledPin, ledState);
}
}

56
arduino-0022-linux-x64/examples/2.Digital/Button/Button.pde Normal file
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/*
Button
Turns on and off a light emitting diode(LED) connected to digital
pin 13, when pressing a pushbutton attached to pin 2.
The circuit:
* LED attached from pin 13 to ground
* pushbutton attached to pin 2 from +5V
* 10K resistor attached to pin 2 from ground
* Note: on most Arduinos there is already an LED on the board
attached to pin 13.
created 2005
by DojoDave <http://www.0j0.org>
modified 28 Oct 2010
by Tom Igoe
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/Button
*/
// constants won't change. They're used here to
// set pin numbers:
const int buttonPin = 2; // the number of the pushbutton pin
const int ledPin = 13; // the number of the LED pin
// variables will change:
int buttonState = 0; // variable for reading the pushbutton status
void setup() {
// initialize the LED pin as an output:
pinMode(ledPin, OUTPUT);
// initialize the pushbutton pin as an input:
pinMode(buttonPin, INPUT);
}
void loop(){
// read the state of the pushbutton value:
buttonState = digitalRead(buttonPin);
// check if the pushbutton is pressed.
// if it is, the buttonState is HIGH:
if (buttonState == HIGH) {
// turn LED on:
digitalWrite(ledPin, HIGH);
}
else {
// turn LED off:
digitalWrite(ledPin, LOW);
}
}

75
arduino-0022-linux-x64/examples/2.Digital/Debounce/Debounce.pde Normal file
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/*
Debounce
Each time the input pin goes from LOW to HIGH (e.g. because of a push-button
press), the output pin is toggled from LOW to HIGH or HIGH to LOW. There's
a minimum delay between toggles to debounce the circuit (i.e. to ignore
noise).
The circuit:
* LED attached from pin 13 to ground
* pushbutton attached from pin 2 to +5V
* 10K resistor attached from pin 2 to ground
* Note: On most Arduino boards, there is already an LED on the board
connected to pin 13, so you don't need any extra components for this example.
created 21 November 2006
by David A. Mellis
modified 3 Jul 2009
by Limor Fried
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/Debounce
*/
// constants won't change. They're used here to
// set pin numbers:
const int buttonPin = 2; // the number of the pushbutton pin
const int ledPin = 13; // the number of the LED pin
// Variables will change:
int ledState = HIGH; // the current state of the output pin
int buttonState; // the current reading from the input pin
int lastButtonState = LOW; // the previous reading from the input pin
// the following variables are long's because the time, measured in miliseconds,
// will quickly become a bigger number than can be stored in an int.
long lastDebounceTime = 0; // the last time the output pin was toggled
long debounceDelay = 50; // the debounce time; increase if the output flickers
void setup() {
pinMode(buttonPin, INPUT);
pinMode(ledPin, OUTPUT);
}
void loop() {
// read the state of the switch into a local variable:
int reading = digitalRead(buttonPin);
// check to see if you just pressed the button
// (i.e. the input went from LOW to HIGH), and you've waited
// long enough since the last press to ignore any noise:
// If the switch changed, due to noise or pressing:
if (reading != lastButtonState) {
// reset the debouncing timer
lastDebounceTime = millis();
}
if ((millis() - lastDebounceTime) > debounceDelay) {
// whatever the reading is at, it's been there for longer
// than the debounce delay, so take it as the actual current state:
buttonState = reading;
}
// set the LED using the state of the button:
digitalWrite(ledPin, buttonState);
// save the reading. Next time through the loop,
// it'll be the lastButtonState:
lastButtonState = reading;
}

92
arduino-0022-linux-x64/examples/2.Digital/StateChangeDetection/StateChangeDetection.pde Normal file
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/*
State change detection (edge detection)
Often, you don't need to know the state of a digital input all the time,
but you just need to know when the input changes from one state to another.
For example, you want to know when a button goes from OFF to ON. This is called
state change detection, or edge detection.
This example shows how to detect when a button or button changes from off to on
and on to off.
The circuit:
* pushbutton attached to pin 2 from +5V
* 10K resistor attached to pin 2 from ground
* LED attached from pin 13 to ground (or use the built-in LED on
most Arduino boards)
created 27 Sep 2005
modified 14 Oct 2010
by Tom Igoe
This example code is in the public domain.
http://arduino.cc/en/Tutorial/ButtonStateChange
*/
// this constant won't change:
const int buttonPin = 2; // the pin that the pushbutton is attached to
const int ledPin = 13; // the pin that the LED is attached to
// Variables will change:
int buttonPushCounter = 0; // counter for the number of button presses
int buttonState = 0; // current state of the button
int lastButtonState = 0; // previous state of the button
void setup() {
// initialize the button pin as a input:
pinMode(buttonPin, INPUT);
// initialize the LED as an output:
pinMode(ledPin, OUTPUT);
// initialize serial communication:
Serial.begin(9600);
}
void loop() {
// read the pushbutton input pin:
buttonState = digitalRead(buttonPin);
// compare the buttonState to its previous state
if (buttonState != lastButtonState) {
// if the state has changed, increment the counter
if (buttonState == HIGH) {
// if the current state is HIGH then the button
// wend from off to on:
buttonPushCounter++;
Serial.println("on");
Serial.print("number of button pushes: ");
Serial.println(buttonPushCounter, DEC);
}
else {
// if the current state is LOW then the button
// wend from on to off:
Serial.println("off");
}
}
// save the current state as the last state,
//for next time through the loop
lastButtonState = buttonState;
// turns on the LED every four button pushes by
// checking the modulo of the button push counter.
// the modulo function gives you the remainder of
// the division of two numbers:
if (buttonPushCounter % 4 == 0) {
digitalWrite(ledPin, HIGH);
} else {
digitalWrite(ledPin, LOW);
}
}

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arduino-0022-linux-x64/examples/2.Digital/toneKeyboard/pitches.h Normal file
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/*************************************************
* Public Constants
*************************************************/
#define NOTE_B0 31
#define NOTE_C1 33
#define NOTE_CS1 35
#define NOTE_D1 37
#define NOTE_DS1 39
#define NOTE_E1 41
#define NOTE_F1 44
#define NOTE_FS1 46
#define NOTE_G1 49
#define NOTE_GS1 52
#define NOTE_A1 55
#define NOTE_AS1 58
#define NOTE_B1 62
#define NOTE_C2 65
#define NOTE_CS2 69
#define NOTE_D2 73
#define NOTE_DS2 78
#define NOTE_E2 82
#define NOTE_F2 87
#define NOTE_FS2 93
#define NOTE_G2 98
#define NOTE_GS2 104
#define NOTE_A2 110
#define NOTE_AS2 117
#define NOTE_B2 123
#define NOTE_C3 131
#define NOTE_CS3 139
#define NOTE_D3 147
#define NOTE_DS3 156
#define NOTE_E3 165
#define NOTE_F3 175
#define NOTE_FS3 185
#define NOTE_G3 196
#define NOTE_GS3 208
#define NOTE_A3 220
#define NOTE_AS3 233
#define NOTE_B3 247
#define NOTE_C4 262
#define NOTE_CS4 277
#define NOTE_D4 294
#define NOTE_DS4 311
#define NOTE_E4 330
#define NOTE_F4 349
#define NOTE_FS4 370
#define NOTE_G4 392
#define NOTE_GS4 415
#define NOTE_A4 440
#define NOTE_AS4 466
#define NOTE_B4 494
#define NOTE_C5 523
#define NOTE_CS5 554
#define NOTE_D5 587
#define NOTE_DS5 622
#define NOTE_E5 659
#define NOTE_F5 698
#define NOTE_FS5 740
#define NOTE_G5 784
#define NOTE_GS5 831
#define NOTE_A5 880
#define NOTE_AS5 932
#define NOTE_B5 988
#define NOTE_C6 1047
#define NOTE_CS6 1109
#define NOTE_D6 1175
#define NOTE_DS6 1245
#define NOTE_E6 1319
#define NOTE_F6 1397
#define NOTE_FS6 1480
#define NOTE_G6 1568
#define NOTE_GS6 1661
#define NOTE_A6 1760
#define NOTE_AS6 1865
#define NOTE_B6 1976
#define NOTE_C7 2093
#define NOTE_CS7 2217
#define NOTE_D7 2349
#define NOTE_DS7 2489
#define NOTE_E7 2637
#define NOTE_F7 2794
#define NOTE_FS7 2960
#define NOTE_G7 3136
#define NOTE_GS7 3322
#define NOTE_A7 3520
#define NOTE_AS7 3729
#define NOTE_B7 3951
#define NOTE_C8 4186
#define NOTE_CS8 4435
#define NOTE_D8 4699
#define NOTE_DS8 4978

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arduino-0022-linux-x64/examples/2.Digital/toneKeyboard/toneKeyboard.pde Normal file
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/*
keyboard
Plays a pitch that changes based on a changing analog input
circuit:
* 3 force-sensing resistors from +5V to analog in 0 through 5
* 3 10K resistors from analog in 0 through 5 to ground
* 8-ohm speaker on digital pin 8
created 21 Jan 2010
Modified 4 Sep 2010
by Tom Igoe
This example code is in the public domain.
http://arduino.cc/en/Tutorial/Tone3
*/
#include "pitches.h"
const int threshold = 10; // minimum reading of the sensors that generates a note
// notes to play, corresponding to the 3 sensors:
int notes[] = {
NOTE_A4, NOTE_B4,NOTE_C3 };
void setup() {
}
void loop() {
for (int thisSensor = 0; thisSensor < 3; thisSensor++) {
// get a sensor reading:
int sensorReading = analogRead(thisSensor);
// if the sensor is pressed hard enough:
if (sensorReading > threshold) {
// play the note corresponding to this sensor:
tone(8, notes[thisSensor], 20);
}
}
Serial.println();
}

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arduino-0022-linux-x64/examples/2.Digital/toneMelody/pitches.h Normal file
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/*************************************************
* Public Constants
*************************************************/
#define NOTE_B0 31
#define NOTE_C1 33
#define NOTE_CS1 35
#define NOTE_D1 37
#define NOTE_DS1 39
#define NOTE_E1 41
#define NOTE_F1 44
#define NOTE_FS1 46
#define NOTE_G1 49
#define NOTE_GS1 52
#define NOTE_A1 55
#define NOTE_AS1 58
#define NOTE_B1 62
#define NOTE_C2 65
#define NOTE_CS2 69
#define NOTE_D2 73
#define NOTE_DS2 78
#define NOTE_E2 82
#define NOTE_F2 87
#define NOTE_FS2 93
#define NOTE_G2 98
#define NOTE_GS2 104
#define NOTE_A2 110
#define NOTE_AS2 117
#define NOTE_B2 123
#define NOTE_C3 131
#define NOTE_CS3 139
#define NOTE_D3 147
#define NOTE_DS3 156
#define NOTE_E3 165
#define NOTE_F3 175
#define NOTE_FS3 185
#define NOTE_G3 196
#define NOTE_GS3 208
#define NOTE_A3 220
#define NOTE_AS3 233
#define NOTE_B3 247
#define NOTE_C4 262
#define NOTE_CS4 277
#define NOTE_D4 294
#define NOTE_DS4 311
#define NOTE_E4 330
#define NOTE_F4 349
#define NOTE_FS4 370
#define NOTE_G4 392
#define NOTE_GS4 415
#define NOTE_A4 440
#define NOTE_AS4 466
#define NOTE_B4 494
#define NOTE_C5 523
#define NOTE_CS5 554
#define NOTE_D5 587
#define NOTE_DS5 622
#define NOTE_E5 659
#define NOTE_F5 698
#define NOTE_FS5 740
#define NOTE_G5 784
#define NOTE_GS5 831
#define NOTE_A5 880
#define NOTE_AS5 932
#define NOTE_B5 988
#define NOTE_C6 1047
#define NOTE_CS6 1109
#define NOTE_D6 1175
#define NOTE_DS6 1245
#define NOTE_E6 1319
#define NOTE_F6 1397
#define NOTE_FS6 1480
#define NOTE_G6 1568
#define NOTE_GS6 1661
#define NOTE_A6 1760
#define NOTE_AS6 1865
#define NOTE_B6 1976
#define NOTE_C7 2093
#define NOTE_CS7 2217
#define NOTE_D7 2349
#define NOTE_DS7 2489
#define NOTE_E7 2637
#define NOTE_F7 2794
#define NOTE_FS7 2960
#define NOTE_G7 3136
#define NOTE_GS7 3322
#define NOTE_A7 3520
#define NOTE_AS7 3729
#define NOTE_B7 3951
#define NOTE_C8 4186
#define NOTE_CS8 4435
#define NOTE_D8 4699
#define NOTE_DS8 4978

49
arduino-0022-linux-x64/examples/2.Digital/toneMelody/toneMelody.pde Normal file
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/*
Melody
Plays a melody
circuit:
* 8-ohm speaker on digital pin 8
created 21 Jan 2010
modified 14 Oct 2010
by Tom Igoe
This example code is in the public domain.
http://arduino.cc/en/Tutorial/Tone
*/
#include "pitches.h"
// notes in the melody:
int melody[] = {
NOTE_C4, NOTE_G3,NOTE_G3, NOTE_A3, NOTE_G3,0, NOTE_B3, NOTE_C4};
// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[] = {
4, 8, 8, 4,4,4,4,4 };
void setup() {
// iterate over the notes of the melody:
for (int thisNote = 0; thisNote < 8; thisNote++) {
// to calculate the note duration, take one second
// divided by the note type.
//e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.
int noteDuration = 1000/noteDurations[thisNote];
tone(8, melody[thisNote],noteDuration);
// to distinguish the notes, set a minimum time between them.
// the note's duration + 30% seems to work well:
int pauseBetweenNotes = noteDuration * 1.30;
delay(pauseBetweenNotes);
// stop the tone playing:
noTone(8);
}
}
void loop() {
// no need to repeat the melody.
}

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arduino-0022-linux-x64/examples/2.Digital/toneMultiple/pitches.h Normal file
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/*************************************************
* Public Constants
*************************************************/
#define NOTE_B0 31
#define NOTE_C1 33
#define NOTE_CS1 35
#define NOTE_D1 37
#define NOTE_DS1 39
#define NOTE_E1 41
#define NOTE_F1 44
#define NOTE_FS1 46
#define NOTE_G1 49
#define NOTE_GS1 52
#define NOTE_A1 55
#define NOTE_AS1 58
#define NOTE_B1 62
#define NOTE_C2 65
#define NOTE_CS2 69
#define NOTE_D2 73
#define NOTE_DS2 78
#define NOTE_E2 82
#define NOTE_F2 87
#define NOTE_FS2 93
#define NOTE_G2 98
#define NOTE_GS2 104
#define NOTE_A2 110
#define NOTE_AS2 117
#define NOTE_B2 123
#define NOTE_C3 131
#define NOTE_CS3 139
#define NOTE_D3 147
#define NOTE_DS3 156
#define NOTE_E3 165
#define NOTE_F3 175
#define NOTE_FS3 185
#define NOTE_G3 196
#define NOTE_GS3 208
#define NOTE_A3 220
#define NOTE_AS3 233
#define NOTE_B3 247
#define NOTE_C4 262
#define NOTE_CS4 277
#define NOTE_D4 294
#define NOTE_DS4 311
#define NOTE_E4 330
#define NOTE_F4 349
#define NOTE_FS4 370
#define NOTE_G4 392
#define NOTE_GS4 415
#define NOTE_A4 440
#define NOTE_AS4 466
#define NOTE_B4 494
#define NOTE_C5 523
#define NOTE_CS5 554
#define NOTE_D5 587
#define NOTE_DS5 622
#define NOTE_E5 659
#define NOTE_F5 698
#define NOTE_FS5 740
#define NOTE_G5 784
#define NOTE_GS5 831
#define NOTE_A5 880
#define NOTE_AS5 932
#define NOTE_B5 988
#define NOTE_C6 1047
#define NOTE_CS6 1109
#define NOTE_D6 1175
#define NOTE_DS6 1245
#define NOTE_E6 1319
#define NOTE_F6 1397
#define NOTE_FS6 1480
#define NOTE_G6 1568
#define NOTE_GS6 1661
#define NOTE_A6 1760
#define NOTE_AS6 1865
#define NOTE_B6 1976
#define NOTE_C7 2093
#define NOTE_CS7 2217
#define NOTE_D7 2349
#define NOTE_DS7 2489
#define NOTE_E7 2637
#define NOTE_F7 2794
#define NOTE_FS7 2960
#define NOTE_G7 3136
#define NOTE_GS7 3322
#define NOTE_A7 3520
#define NOTE_AS7 3729
#define NOTE_B7 3951
#define NOTE_C8 4186
#define NOTE_CS8 4435
#define NOTE_D8 4699
#define NOTE_DS8 4978

42
arduino-0022-linux-x64/examples/2.Digital/toneMultiple/toneMultiple.pde Normal file
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/*
Multiple tone player
Plays multiple tones on multiple pins in sequence
circuit:
* 3 8-ohm speaker on digital pins 6, 7, and 11
created 8 March 2010
by Tom Igoe
based on a snippet from Greg Borenstein
This example code is in the public domain.
http://arduino.cc/en/Tutorial/Tone4
*/
void setup() {
}
void loop() {
// turn off tone function for pin 11:
noTone(11);
// play a note on pin 6 for 200 ms:
tone(6, 440, 200);
delay(200);
// turn off tone function for pin 6:
noTone(6);
// play a note on pin 7 for 500 ms:
tone(7, 494, 500);
delay(500);
// turn off tone function for pin 7:
noTone(7);
// play a note on pin 11 for 500 ms:
tone(11, 523, 300);
delay(300);
}

46
arduino-0022-linux-x64/examples/2.Digital/tonePitchFollower/tonePitchFollower.pde Normal file
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/*
Pitch follower
Plays a pitch that changes based on a changing analog input
circuit:
* 8-ohm speaker on digital pin 8
* photoresistor on analog 0 to 5V
* 4.7K resistor on analog 0 to ground
created 21 Jan 2010
Modified 4 Sep 2010
by Tom Igoe
This example code is in the public domain.
http://arduino.cc/en/Tutorial/Tone2
*/
void setup() {
// initialize serial communications (for debugging only):
Serial.begin(9600);
}
void loop() {
// read the sensor:
int sensorReading = analogRead(A0);
// print the sensor reading so you know its range
Serial.println(sensorReading);
// map the pitch to the range of the analog input.
// change the minimum and maximum input numbers below
// depending on the range your sensor's giving:
int thisPitch = map(sensorReading, 400, 1000, 100, 1000);
// play the pitch:
tone(8, thisPitch, 10);
}

53
arduino-0022-linux-x64/examples/3.Analog/AnalogInOutSerial/AnalogInOutSerial.pde Normal file
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/*
Analog input, analog output, serial output
Reads an analog input pin, maps the result to a range from 0 to 255
and uses the result to set the pulsewidth modulation (PWM) of an output pin.
Also prints the results to the serial monitor.
The circuit:
* potentiometer connected to analog pin 0.
Center pin of the potentiometer goes to the analog pin.
side pins of the potentiometer go to +5V and ground
* LED connected from digital pin 9 to ground
created 29 Dec. 2008
Modified 4 Sep 2010
by Tom Igoe
This example code is in the public domain.
*/
// These constants won't change. They're used to give names
// to the pins used:
const int analogInPin = A0; // Analog input pin that the potentiometer is attached to
const int analogOutPin = 9; // Analog output pin that the LED is attached to
int sensorValue = 0; // value read from the pot
int outputValue = 0; // value output to the PWM (analog out)
void setup() {
// initialize serial communications at 9600 bps:
Serial.begin(9600);
}
void loop() {
// read the analog in value:
sensorValue = analogRead(analogInPin);
// map it to the range of the analog out:
outputValue = map(sensorValue, 0, 1023, 0, 255);
// change the analog out value:
analogWrite(analogOutPin, outputValue);
// print the results to the serial monitor:
Serial.print("sensor = " );
Serial.print(sensorValue);
Serial.print("\t output = ");
Serial.println(outputValue);
// wait 10 milliseconds before the next loop
// for the analog-to-digital converter to settle
// after the last reading:
delay(10);
}

50
arduino-0022-linux-x64/examples/3.Analog/AnalogInput/AnalogInput.pde Normal file
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/*
Analog Input
Demonstrates analog input by reading an analog sensor on analog pin 0 and
turning on and off a light emitting diode(LED) connected to digital pin 13.
The amount of time the LED will be on and off depends on
the value obtained by analogRead().
The circuit:
* Potentiometer attached to analog input 0
* center pin of the potentiometer to the analog pin
* one side pin (either one) to ground
* the other side pin to +5V
* LED anode (long leg) attached to digital output 13
* LED cathode (short leg) attached to ground
* Note: because most Arduinos have a built-in LED attached
to pin 13 on the board, the LED is optional.
Created by David Cuartielles
Modified 4 Sep 2010
By Tom Igoe
This example code is in the public domain.
http://arduino.cc/en/Tutorial/AnalogInput
*/
int sensorPin = A0; // select the input pin for the potentiometer
int ledPin = 13; // select the pin for the LED
int sensorValue = 0; // variable to store the value coming from the sensor
void setup() {
// declare the ledPin as an OUTPUT:
pinMode(ledPin, OUTPUT);
}
void loop() {
// read the value from the sensor:
sensorValue = analogRead(sensorPin);
// turn the ledPin on
digitalWrite(ledPin, HIGH);
// stop the program for <sensorValue> milliseconds:
delay(sensorValue);
// turn the ledPin off:
digitalWrite(ledPin, LOW);
// stop the program for for <sensorValue> milliseconds:
delay(sensorValue);
}

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/*
Mega analogWrite() test
This sketch fades LEDs up and down one at a time on digital pins 2 through 13.
This sketch was written for the Arduino Mega, and will not work on previous boards.
The circuit:
* LEDs attached from pins 2 through 13 to ground.
created 8 Feb 2009
by Tom Igoe
This example code is in the public domain.
*/
// These constants won't change. They're used to give names
// to the pins used:
const int lowestPin = 2;
const int highestPin = 13;
void setup() {
// set pins 2 through 13 as outputs:
for (int thisPin =lowestPin; thisPin <= highestPin; thisPin++) {
pinMode(thisPin, OUTPUT);
}
}
void loop() {
// iterate over the pins:
for (int thisPin =lowestPin; thisPin <= highestPin; thisPin++) {
// fade the LED on thisPin from off to brightest:
for (int brightness = 0; brightness < 255; brightness++) {
analogWrite(thisPin, brightness);
delay(2);
}
// fade the LED on thisPin from brithstest to off:
for (int brightness = 255; brightness >= 0; brightness--) {
analogWrite(thisPin, brightness);
delay(2);
}
// pause between LEDs:
delay(100);
}
}

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/*
Calibration
Demonstrates one technique for calibrating sensor input. The
sensor readings during the first five seconds of the sketch
execution define the minimum and maximum of expected values
attached to the sensor pin.
The sensor minimum and maximum initial values may seem backwards.
Initially, you set the minimum high and listen for anything
lower, saving it as the new minimum. Likewise, you set the
maximum low and listen for anything higher as the new maximum.
The circuit:
* Analog sensor (potentiometer will do) attached to analog input 0
* LED attached from digital pin 9 to ground
created 29 Oct 2008
By David A Mellis
Modified 4 Sep 2010
By Tom Igoe
http://arduino.cc/en/Tutorial/Calibration
This example code is in the public domain.
*/
// These constants won't change:
const int sensorPin = A0; // pin that the sensor is attached to
const int ledPin = 9; // pin that the LED is attached to
// variables:
int sensorValue = 0; // the sensor value
int sensorMin = 1023; // minimum sensor value
int sensorMax = 0; // maximum sensor value
void setup() {
// turn on LED to signal the start of the calibration period:
pinMode(13, OUTPUT);
digitalWrite(13, HIGH);
// calibrate during the first five seconds
while (millis() < 5000) {
sensorValue = analogRead(sensorPin);
// record the maximum sensor value
if (sensorValue > sensorMax) {
sensorMax = sensorValue;
}
// record the minimum sensor value
if (sensorValue < sensorMin) {
sensorMin = sensorValue;
}
}
// signal the end of the calibration period
digitalWrite(13, LOW);
}
void loop() {
// read the sensor:
sensorValue = analogRead(sensorPin);
// apply the calibration to the sensor reading
sensorValue = map(sensorValue, sensorMin, sensorMax, 0, 255);
// in case the sensor value is outside the range seen during calibration
sensorValue = constrain(sensorValue, 0, 255);
// fade the LED using the calibrated value:
analogWrite(ledPin, sensorValue);
}

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/*
Fading
This example shows how to fade an LED using the analogWrite() function.
The circuit:
* LED attached from digital pin 9 to ground.
Created 1 Nov 2008
By David A. Mellis
Modified 17 June 2009
By Tom Igoe
http://arduino.cc/en/Tutorial/Fading
This example code is in the public domain.
*/
int ledPin = 9; // LED connected to digital pin 9
void setup() {
// nothing happens in setup
}
void loop() {
// fade in from min to max in increments of 5 points:
for(int fadeValue = 0 ; fadeValue <= 255; fadeValue +=5) {
// sets the value (range from 0 to 255):
analogWrite(ledPin, fadeValue);
// wait for 30 milliseconds to see the dimming effect
delay(30);
}
// fade out from max to min in increments of 5 points:
for(int fadeValue = 255 ; fadeValue >= 0; fadeValue -=5) {
// sets the value (range from 0 to 255):
analogWrite(ledPin, fadeValue);
// wait for 30 milliseconds to see the dimming effect
delay(30);
}
}

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/*
Smoothing
Reads repeatedly from an analog input, calculating a running average
and printing it to the computer. Keeps ten readings in an array and
continually averages them.
The circuit:
* Analog sensor (potentiometer will do) attached to analog input 0
Created 22 April 2007
By David A. Mellis <dam@mellis.org>
http://www.arduino.cc/en/Tutorial/Smoothing
This example code is in the public domain.
*/
// Define the number of samples to keep track of. The higher the number,
// the more the readings will be smoothed, but the slower the output will
// respond to the input. Using a constant rather than a normal variable lets
// use this value to determine the size of the readings array.
const int numReadings = 10;
int readings[numReadings]; // the readings from the analog input
int index = 0; // the index of the current reading
int total = 0; // the running total
int average = 0; // the average
int inputPin = A0;
void setup()
{
// initialize serial communication with computer:
Serial.begin(9600);
// initialize all the readings to 0:
for (int thisReading = 0; thisReading < numReadings; thisReading++)
readings[thisReading] = 0;
}
void loop() {
// subtract the last reading:
total= total - readings[index];
// read from the sensor:
readings[index] = analogRead(inputPin);
// add the reading to the total:
total= total + readings[index];
// advance to the next position in the array:
index = index + 1;
// if we're at the end of the array...
if (index >= numReadings)
// ...wrap around to the beginning:
index = 0;
// calculate the average:
average = total / numReadings;
// send it to the computer (as ASCII digits)
Serial.println(average, DEC);
}

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/*
ASCII table
Prints out byte values in all possible formats:
* as raw binary values
* as ASCII-encoded decimal, hex, octal, and binary values
For more on ASCII, see http://www.asciitable.com and http://en.wikipedia.org/wiki/ASCII
The circuit: No external hardware needed.
created 2006
by Nicholas Zambetti
modified 18 Jan 2009
by Tom Igoe
This example code is in the public domain.
<http://www.zambetti.com>
*/
void setup()
{
Serial.begin(9600);
// prints title with ending line break
Serial.println("ASCII Table ~ Character Map");
}
// first visible ASCIIcharacter '!' is number 33:
int thisByte = 33;
// you can also write ASCII characters in single quotes.
// for example. '!' is the same as 33, so you could also use this:
//int thisByte = '!';
void loop()
{
// prints value unaltered, i.e. the raw binary version of the
// byte. The serial monitor interprets all bytes as
// ASCII, so 33, the first number, will show up as '!'
Serial.print(thisByte, BYTE);
Serial.print(", dec: ");
// prints value as string as an ASCII-encoded decimal (base 10).
// Decimal is the default format for Serial.print() and Serial.println(),
// so no modifier is needed:
Serial.print(thisByte);
// But you can declare the modifier for decimal if you want to.
//this also works if you uncomment it:
// Serial.print(thisByte, DEC);
Serial.print(", hex: ");
// prints value as string in hexadecimal (base 16):
Serial.print(thisByte, HEX);
Serial.print(", oct: ");
// prints value as string in octal (base 8);
Serial.print(thisByte, OCT);
Serial.print(", bin: ");
// prints value as string in binary (base 2)
// also prints ending line break:
Serial.println(thisByte, BIN);
// if printed last visible character '~' or 126, stop:
if(thisByte == 126) { // you could also use if (thisByte == '~') {
// This loop loops forever and does nothing
while(true) {
continue;
}
}
// go on to the next character
thisByte++;
}

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/*
Dimmer
Demonstrates the sending data from the computer to the Arduino board,
in this case to control the brightness of an LED. The data is sent
in individual bytes, each of which ranges from 0 to 255. Arduino
reads these bytes and uses them to set the brightness of the LED.
The circuit:
LED attached from digital pin 9 to ground.
Serial connection to Processing, Max/MSP, or another serial application
created 2006
by David A. Mellis
modified 14 Apr 2009
by Tom Igoe and Scott Fitzgerald
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/Dimmer
*/
const int ledPin = 9; // the pin that the LED is attached to
void setup()
{
// initialize the serial communication:
Serial.begin(9600);
// initialize the ledPin as an output:
pinMode(ledPin, OUTPUT);
}
void loop() {
byte brightness;
// check if data has been sent from the computer:
if (Serial.available()) {
// read the most recent byte (which will be from 0 to 255):
brightness = Serial.read();
// set the brightness of the LED:
analogWrite(ledPin, brightness);
}
}
/* Processing code for this example
// Dimmer - sends bytes over a serial port
// by David A. Mellis
//This example code is in the public domain.
import processing.serial.*;
Serial port;
void setup() {
size(256, 150);
println("Available serial ports:");
println(Serial.list());
// Uses the first port in this list (number 0). Change this to
// select the port corresponding to your Arduino board. The last
// parameter (e.g. 9600) is the speed of the communication. It
// has to correspond to the value passed to Serial.begin() in your
// Arduino sketch.
port = new Serial(this, Serial.list()[0], 9600);
// If you know the name of the port used by the Arduino board, you
// can specify it directly like this.
//port = new Serial(this, "COM1", 9600);
}
void draw() {
// draw a gradient from black to white
for (int i = 0; i < 256; i++) {
stroke(i);
line(i, 0, i, 150);
}
// write the current X-position of the mouse to the serial port as
// a single byte
port.write(mouseX);
}
*/
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/*
Graph
A simple example of communication from the Arduino board to the computer:
the value of analog input 0 is sent out the serial port. We call this "serial"
communication because the connection appears to both the Arduino and the
computer as a serial port, even though it may actually use
a USB cable. Bytes are sent one after another (serially) from the Arduino
to the computer.
You can use the Arduino serial monitor to view the sent data, or it can
be read by Processing, PD, Max/MSP, or any other program capable of reading
data from a serial port. The Processing code below graphs the data received
so you can see the value of the analog input changing over time.
The circuit:
Any analog input sensor is attached to analog in pin 0.
created 2006
by David A. Mellis
modified 14 Apr 2009
by Tom Igoe and Scott Fitzgerald
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/Graph
*/
void setup() {
// initialize the serial communication:
Serial.begin(9600);
}
void loop() {
// send the value of analog input 0:
Serial.println(analogRead(A0));
// wait a bit for the analog-to-digital converter
// to stabilize after the last reading:
delay(10);
}
/* Processing code for this example
// Graphing sketch
// This program takes ASCII-encoded strings
// from the serial port at 9600 baud and graphs them. It expects values in the
// range 0 to 1023, followed by a newline, or newline and carriage return
// Created 20 Apr 2005
// Updated 18 Jan 2008
// by Tom Igoe
// This example code is in the public domain.
import processing.serial.*;
Serial myPort; // The serial port
int xPos = 1; // horizontal position of the graph
void setup () {
// set the window size:
size(400, 300);
// List all the available serial ports
println(Serial.list());
// I know that the first port in the serial list on my mac
// is always my Arduino, so I open Serial.list()[0].
// Open whatever port is the one you're using.
myPort = new Serial(this, Serial.list()[0], 9600);
// don't generate a serialEvent() unless you get a newline character:
myPort.bufferUntil('\n');
// set inital background:
background(0);
}
void draw () {
// everything happens in the serialEvent()
}
void serialEvent (Serial myPort) {
// get the ASCII string:
String inString = myPort.readStringUntil('\n');
if (inString != null) {
// trim off any whitespace:
inString = trim(inString);
// convert to an int and map to the screen height:
float inByte = float(inString);
inByte = map(inByte, 0, 1023, 0, height);
// draw the line:
stroke(127,34,255);
line(xPos, height, xPos, height - inByte);
// at the edge of the screen, go back to the beginning:
if (xPos >= width) {
xPos = 0;
background(0);
}
else {
// increment the horizontal position:
xPos++;
}
}
}
*/
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49
arduino-0022-linux-x64/examples/4.Communication/MIDI/Midi.pde Normal file
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@ -0,0 +1,49 @@
/*
MIDI note player
This sketch shows how to use the serial transmit pin (pin 1) to send MIDI note data.
If this circuit is connected to a MIDI synth, it will play
the notes F#-0 (0x1E) to F#-5 (0x5A) in sequence.
The circuit:
* digital in 1 connected to MIDI jack pin 5
* MIDI jack pin 2 connected to ground
* MIDI jack pin 4 connected to +5V through 220-ohm resistor
Attach a MIDI cable to the jack, then to a MIDI synth, and play music.
created 13 Jun 2006
modified 2 Jul 2009
by Tom Igoe
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/MIDI
*/
void setup() {
// Set MIDI baud rate:
Serial.begin(31250);
}
void loop() {
// play notes from F#-0 (0x1E) to F#-5 (0x5A):
for (intnote = 0x1E; note < 0x5A; note ++) {
//Note on channel 1 (0x90), some note value (note), middle velocity (0x45):
noteOn(0x90, note, 0x45);
delay(100);
//Note on channel 1 (0x90), some note value (note), silent velocity (0x00):
noteOn(0x90, note, 0x00);
delay(100);
}
}
// plays a MIDI note. Doesn't check to see that
// cmd is greater than 127, or that data values are less than 127:
void noteOn(int cmd, int pitch, int velocity) {
Serial.print(cmd, BYTE);
Serial.print(pitch, BYTE);
Serial.print(velocity, BYTE);
}

33
arduino-0022-linux-x64/examples/4.Communication/MultiSerialMega/MultiSerialMega.pde Normal file
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/*
Mega multple serial test
Receives from the main serial port, sends to the others.
Receives from serial port 1, sends to the main serial (Serial 0).
This example works only on the Arduino Mega
The circuit:
* Any serial device attached to Serial port 1
* Serial monitor open on Serial port 0:
created 30 Dec. 2008
by Tom Igoe
This example code is in the public domain.
*/
void setup() {
// initialize both serial ports:
Serial.begin(9600);
Serial1.begin(9600);
}
void loop() {
// read from port 1, send to port 0:
if (Serial1.available()) {
int inByte = Serial1.read();
Serial.print(inByte, BYTE);
}
}

711
arduino-0022-linux-x64/examples/4.Communication/PhysicalPixel/PhysicalPixel.pde Normal file
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/*
Physical Pixel
An example of using the Arduino board to receive data from the
computer. In this case, the Arduino boards turns on an LED when
it receives the character 'H', and turns off the LED when it
receives the character 'L'.
The data can be sent from the Arduino serial monitor, or another
program like Processing (see code below), Flash (via a serial-net
proxy), PD, or Max/MSP.
The circuit:
* LED connected from digital pin 13 to ground
created 2006
by David A. Mellis
modified 14 Apr 2009
by Tom Igoe and Scott Fitzgerald
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/PhysicalPixel
*/
const int ledPin = 13; // the pin that the LED is attached to
int incomingByte; // a variable to read incoming serial data into
void setup() {
// initialize serial communication:
Serial.begin(9600);
// initialize the LED pin as an output:
pinMode(ledPin, OUTPUT);
}
void loop() {
// see if there's incoming serial data:
if (Serial.available() > 0) {
// read the oldest byte in the serial buffer:
incomingByte = Serial.read();
// if it's a capital H (ASCII 72), turn on the LED:
if (incomingByte == 'H') {
digitalWrite(ledPin, HIGH);
}
// if it's an L (ASCII 76) turn off the LED:
if (incomingByte == 'L') {
digitalWrite(ledPin, LOW);
}
}
}
/* Processing code for this example
// mouseover serial
// Demonstrates how to send data to the Arduino I/O board, in order to
// turn ON a light if the mouse is over a square and turn it off
// if the mouse is not.
// created 2003-4
// based on examples by Casey Reas and Hernando Barragan
// modified 18 Jan 2009
// by Tom Igoe
// This example code is in the public domain.
import processing.serial.*;
float boxX;
float boxY;
int boxSize = 20;
boolean mouseOverBox = false;
Serial port;
void setup() {
size(200, 200);
boxX = width/2.0;
boxY = height/2.0;
rectMode(RADIUS);
// List all the available serial ports in the output pane.
// You will need to choose the port that the Arduino board is
// connected to from this list. The first port in the list is
// port #0 and the third port in the list is port #2.
println(Serial.list());
// Open the port that the Arduino board is connected to (in this case #0)
// Make sure to open the port at the same speed Arduino is using (9600bps)
port = new Serial(this, Serial.list()[0], 9600);
}
void draw()
{
background(0);
// Test if the cursor is over the box
if (mouseX > boxX-boxSize && mouseX < boxX+boxSize &&
mouseY > boxY-boxSize && mouseY < boxY+boxSize) {
mouseOverBox = true;
// draw a line around the box and change its color:
stroke(255);
fill(153);
// send an 'H' to indicate mouse is over square:
port.write('H');
}
else {
// return the box to it's inactive state:
stroke(153);
fill(153);
// send an 'L' to turn the LED off:
port.write('L');
mouseOverBox = false;
}
// Draw the box
rect(boxX, boxY, boxSize, boxSize);
}
*/
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/*
This example reads three analog sensors (potentiometers are easiest)
and sends their values serially. The Processing and Max/MSP programs at the bottom
take those three values and use them to change the background color of the screen.
The circuit:
* potentiometers attached to analog inputs 0, 1, and 2
http://www.arduino.cc/en/Tutorial/VirtualColorMixer
created 2 Dec 2006
by David A. Mellis
modified 4 Sep 2010
by Tom Igoe and Scott Fitzgerald
This example code is in the public domain.
*/
const int redPin = A0; // sensor to control red color
const int greenPin = A1; // sensor to control green color
const int bluePin = A2; // sensor to control blue color
void setup()
{
Serial.begin(9600);
}
void loop()
{
Serial.print(analogRead(redPin));
Serial.print(",");
Serial.print(analogRead(greenPin));
Serial.print(",");
Serial.println(analogRead(bluePin));
}
/* Processing code for this example
// This example code is in the public domain.
import processing.serial.*;
float redValue = 0; // red value
float greenValue = 0; // green value
float blueValue = 0; // blue value
Serial myPort;
void setup() {
size(200, 200);
// List all the available serial ports
println(Serial.list());
// I know that the first port in the serial list on my mac
// is always my Arduino, so I open Serial.list()[0].
// Open whatever port is the one you're using.
myPort = new Serial(this, Serial.list()[0], 9600);
// don't generate a serialEvent() unless you get a newline character:
myPort.bufferUntil('\n');
}
void draw() {
// set the background color with the color values:
background(redValue, greenValue, blueValue);
}
void serialEvent(Serial myPort) {
// get the ASCII string:
String inString = myPort.readStringUntil('\n');
if (inString != null) {
// trim off any whitespace:
inString = trim(inString);
// split the string on the commas and convert the
// resulting substrings into an integer array:
float[] colors = float(split(inString, ","));
// if the array has at least three elements, you know
// you got the whole thing. Put the numbers in the
// color variables:
if (colors.length >=3) {
// map them to the range 0-255:
redValue = map(colors[0], 0, 1023, 0, 255);
greenValue = map(colors[1], 0, 1023, 0, 255);
blueValue = map(colors[2], 0, 1023, 0, 255);
}
}
}
*/
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"midpoints" : [ 381.5, 296.5, 298.5, 296.5 ]
}
}
, {
"patchline" : {
"source" : [ "obj-30", 0 ],
"destination" : [ "obj-21", 0 ],
"hidden" : 0,
"midpoints" : [ ]
}
}
, {
"patchline" : {
"source" : [ "obj-30", 1 ],
"destination" : [ "obj-19", 0 ],
"hidden" : 0,
"midpoints" : [ ]
}
}
, {
"patchline" : {
"source" : [ "obj-11", 0 ],
"destination" : [ "obj-30", 0 ],
"hidden" : 0,
"midpoints" : [ 298.0, 116.0, 381.5, 116.0 ]
}
}
, {
"patchline" : {
"source" : [ "obj-7", 0 ],
"destination" : [ "obj-20", 0 ],
"hidden" : 0,
"midpoints" : [ ]
}
}
, {
"patchline" : {
"source" : [ "obj-9", 0 ],
"destination" : [ "obj-8", 0 ],
"hidden" : 0,
"midpoints" : [ ]
}
}
, {
"patchline" : {
"source" : [ "obj-10", 0 ],
"destination" : [ "obj-9", 0 ],
"hidden" : 0,
"midpoints" : [ 298.5, 353.0, 356.5, 353.0 ]
}
}
, {
"patchline" : {
"source" : [ "obj-10", 2 ],
"destination" : [ "obj-9", 0 ],
"hidden" : 0,
"midpoints" : [ 356.5, 365.0, 356.5, 365.0 ]
}
}
]
}
*/

57
arduino-0022-linux-x64/examples/5.Control/Arrays/Arrays.pde Normal file
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/*
Arrays
Demonstrates the use of an array to hold pin numbers
in order to iterate over the pins in a sequence.
Lights multiple LEDs in sequence, then in reverse.
Unlike the For Loop tutorial, where the pins have to be
contiguous, here the pins can be in any random order.
The circuit:
* LEDs from pins 2 through 7 to ground
created 2006
by David A. Mellis
modified 5 Jul 2009
by Tom Igoe
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/Array
*/
int timer = 100; // The higher the number, the slower the timing.
int ledPins[] = {
2, 7, 4, 6, 5, 3 }; // an array of pin numbers to which LEDs are attached
int pinCount = 6; // the number of pins (i.e. the length of the array)
void setup() {
int thisPin;
// the array elements are numbered from 0 to (pinCount - 1).
// use a for loop to initialize each pin as an output:
for (int thisPin = 0; thisPin < pinCount; thisPin++) {
pinMode(ledPins[thisPin], OUTPUT);
}
}
void loop() {
// loop from the lowest pin to the highest:
for (int thisPin = 0; thisPin < pinCount; thisPin++) {
// turn the pin on:
digitalWrite(ledPins[thisPin], HIGH);
delay(timer);
// turn the pin off:
digitalWrite(ledPins[thisPin], LOW);
}
// loop from the highest pin to the lowest:
for (int thisPin = pinCount - 1; thisPin >= 0; thisPin--) {
// turn the pin on:
digitalWrite(ledPins[thisPin], HIGH);
delay(timer);
// turn the pin off:
digitalWrite(ledPins[thisPin], LOW);
}
}

47
arduino-0022-linux-x64/examples/5.Control/ForLoopIteration/ForLoopIteration.pde Normal file
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/*
For Loop Iteration
Demonstrates the use of a for() loop.
Lights multiple LEDs in sequence, then in reverse.
The circuit:
* LEDs from pins 2 through 7 to ground
created 2006
by David A. Mellis
modified 5 Jul 2009
by Tom Igoe
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/ForLoop
*/
int timer = 100; // The higher the number, the slower the timing.
void setup() {
// use a for loop to initialize each pin as an output:
for (int thisPin = 2; thisPin < 8; thisPin++) {
pinMode(thisPin, OUTPUT);
}
}
void loop() {
// loop from the lowest pin to the highest:
for (int thisPin = 2; thisPin < 8; thisPin++) {
// turn the pin on:
digitalWrite(thisPin, HIGH);
delay(timer);
// turn the pin off:
digitalWrite(thisPin, LOW);
}
// loop from the highest pin to the lowest:
for (int thisPin = 7; thisPin >= 2; thisPin--) {
// turn the pin on:
digitalWrite(thisPin, HIGH);
delay(timer);
// turn the pin off:
digitalWrite(thisPin, LOW);
}
}

56
arduino-0022-linux-x64/examples/5.Control/IfStatementConditional/IfStatementConditional.pde Normal file
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/*
Conditionals - If statement
This example demonstrates the use of if() statements.
It reads the state of a potentiometer (an analog input) and turns on an LED
only if the LED goes above a certain threshold level. It prints the analog value
regardless of the level.
The circuit:
* potentiometer connected to analog pin 0.
Center pin of the potentiometer goes to the analog pin.
side pins of the potentiometer go to +5V and ground
* LED connected from digital pin 13 to ground
* Note: On most Arduino boards, there is already an LED on the board
connected to pin 13, so you don't need any extra components for this example.
created 17 Jan 2009
modified 4 Sep 2010
by Tom Igoe
This example code is in the public domain.
http://arduino.cc/en/Tutorial/IfStatement
*/
// These constants won't change:
const int analogPin = A0; // pin that the sensor is attached to
const int ledPin = 13; // pin that the LED is attached to
const int threshold = 400; // an arbitrary threshold level that's in the range of the analog input
void setup() {
// initialize the LED pin as an output:
pinMode(ledPin, OUTPUT);
// initialize serial communications:
Serial.begin(9600);
}
void loop() {
// read the value of the potentiometer:
int analogValue = analogRead(analogPin);
// if the analog value is high enough, turn on the LED:
if (analogValue > threshold) {
digitalWrite(ledPin, HIGH);
}
else {
digitalWrite(ledPin,LOW);
}
// print the analog value:
Serial.println(analogValue, DEC);
}

88
arduino-0022-linux-x64/examples/5.Control/WhileStatementConditional/WhileStatementConditional.pde Normal file
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/*
Conditionals - while statement
This example demonstrates the use of while() statements.
While the pushbutton is pressed, the sketch runs the calibration routine.
The sensor readings during the while loop define the minimum and maximum
of expected values from the photo resistor.
This is a variation on the calibrate example.
The circuit:
* photo resistor connected from +5V to analog in pin 0
* 10K resistor connected from ground to analog in pin 0
* LED connected from digital pin 9 to ground through 220 ohm resistor
* pushbutton attached from pin 2 to +5V
* 10K resistor attached from pin 2 to ground
created 17 Jan 2009
modified 4 Sep 2010
by Tom Igoe
This example code is in the public domain.
http://arduino.cc/en/Tutorial/WhileLoop
*/
// These constants won't change:
const int sensorPin = A2; // pin that the sensor is attached to
const int ledPin = 9; // pin that the LED is attached to
const int indicatorLedPin = 13; // pin that the built-in LED is attached to
const int buttonPin = 2; // pin that the button is attached to
// These variables will change:
int sensorMin = 1023; // minimum sensor value
int sensorMax = 0; // maximum sensor value
int sensorValue = 0; // the sensor value
void setup() {
// set the LED pins as outputs and the switch pin as input:
pinMode(indicatorLedPin, OUTPUT);
pinMode (ledPin, OUTPUT);
pinMode (buttonPin, INPUT);
}
void loop() {
// while the button is pressed, take calibration readings:
while (digitalRead(buttonPin) == HIGH) {
calibrate();
}
// signal the end of the calibration period
digitalWrite(indicatorLedPin, LOW);
// read the sensor:
sensorValue = analogRead(sensorPin);
// apply the calibration to the sensor reading
sensorValue = map(sensorValue, sensorMin, sensorMax, 0, 255);
// in case the sensor value is outside the range seen during calibration
sensorValue = constrain(sensorValue, 0, 255);
// fade the LED using the calibrated value:
analogWrite(ledPin, sensorValue);
}
void calibrate() {
// turn on the indicator LED to indicate that calibration is happening:
digitalWrite(indicatorLedPin, HIGH);
// read the sensor:
sensorValue = analogRead(sensorPin);
// record the maximum sensor value
if (sensorValue > sensorMax) {
sensorMax = sensorValue;
}
// record the minimum sensor value
if (sensorValue < sensorMin) {
sensorMin = sensorValue;
}
}

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arduino-0022-linux-x64/examples/5.Control/switchCase/switchCase.pde Normal file
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/*
Switch statement
Demonstrates the use of a switch statement. The switch
statement allows you to choose from among a set of discrete values
of a variable. It's like a series of if statements.
To see this sketch in action, but the board and sensor in a well-lit
room, open the serial monitor, and and move your hand gradually
down over the sensor.
The circuit:
* photoresistor from analog in 0 to +5V
* 10K resistor from analog in 0 to ground
created 1 Jul 2009
modified 4 Sep 2010
by Tom Igoe
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/SwitchCase
*/
// these constants won't change:
const int sensorMin = 0; // sensor minimum, discovered through experiment
const int sensorMax = 600; // sensor maximum, discovered through experiment
void setup() {
// initialize serial communication:
Serial.begin(9600);
}
void loop() {
// read the sensor:
int sensorReading = analogRead(A0);
// map the sensor range to a range of four options:
int range = map(sensorReading, sensorMin, sensorMax, 0, 3);
// do something different depending on the
// range value:
switch (range) {
case 0: // your hand is on the sensor
Serial.println("dark");
break;
case 1: // your hand is close to the sensor
Serial.println("dim");
break;
case 2: // your hand is a few inches from the sensor
Serial.println("medium");
break;
case 3: // your hand is nowhere near the sensor
Serial.println("bright");
break;
}
}

66
arduino-0022-linux-x64/examples/5.Control/switchCase2/switchCase2.pde Normal file
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/*
Switch statement with serial input
Demonstrates the use of a switch statement. The switch
statement allows you to choose from among a set of discrete values
of a variable. It's like a series of if statements.
To see this sketch in action, open the Serial monitor and send any character.
The characters a, b, c, d, and e, will turn on LEDs. Any other character will turn
the LEDs off.
The circuit:
* 5 LEDs attached to digital pins 2 through 6 through 220-ohm resistors
created 1 Jul 2009
by Tom Igoe
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/SwitchCase2
*/
void setup() {
// initialize serial communication:
Serial.begin(9600);
// initialize the LED pins:
for (int thisPin = 2; thisPin < 7; thisPin++) {
pinMode(thisPin, OUTPUT);
}
}
void loop() {
// read the sensor:
if (Serial.available() > 0) {
int inByte = Serial.read();
// do something different depending on the character received.
// The switch statement expects single number values for each case;
// in this exmaple, though, you're using single quotes to tell
// the controller to get the ASCII value for the character. For
// example 'a' = 97, 'b' = 98, and so forth:
switch (inByte) {
case 'a':
digitalWrite(2, HIGH);
break;
case 'b':
digitalWrite(3, HIGH);
break;
case 'c':
digitalWrite(4, HIGH);
break;
case 'd':
digitalWrite(5, HIGH);
break;
case 'e':
digitalWrite(6, HIGH);
break;
default:
// turn all the LEDs off:
for (int thisPin = 2; thisPin < 7; thisPin++) {
digitalWrite(thisPin, LOW);
}
}
}
}

64
arduino-0022-linux-x64/examples/6.Sensors/ADXL3xx/ADXL3xx.pde Normal file
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/*
ADXL3xx
Reads an Analog Devices ADXL3xx accelerometer and communicates the
acceleration to the computer. The pins used are designed to be easily
compatible with the breakout boards from Sparkfun, available from:
http://www.sparkfun.com/commerce/categories.php?c=80
http://www.arduino.cc/en/Tutorial/ADXL3xx
The circuit:
analog 0: accelerometer self test
analog 1: z-axis
analog 2: y-axis
analog 3: x-axis
analog 4: ground
analog 5: vcc
created 2 Jul 2008
by David A. Mellis
modified 4 Sep 2010
by Tom Igoe
This example code is in the public domain.
*/
// these constants describe the pins. They won't change:
const int groundpin = 18; // analog input pin 4 -- ground
const int powerpin = 19; // analog input pin 5 -- voltage
const int xpin = A3; // x-axis of the accelerometer
const int ypin = A2; // y-axis
const int zpin = A1; // z-axis (only on 3-axis models)
void setup()
{
// initialize the serial communications:
Serial.begin(9600);
// Provide ground and power by using the analog inputs as normal
// digital pins. This makes it possible to directly connect the
// breakout board to the Arduino. If you use the normal 5V and
// GND pins on the Arduino, you can remove these lines.
pinMode(groundpin, OUTPUT);
pinMode(powerpin, OUTPUT);
digitalWrite(groundpin, LOW);
digitalWrite(powerpin, HIGH);
}
void loop()
{
// print the sensor values:
Serial.print(analogRead(xpin));
// print a tab between values:
Serial.print("\t");
Serial.print(analogRead(ypin));
// print a tab between values:
Serial.print("\t");
Serial.print(analogRead(zpin));
Serial.println();
// delay before next reading:
delay(100);
}

55
arduino-0022-linux-x64/examples/6.Sensors/Knock/Knock.pde Normal file
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/* Knock Sensor
This sketch reads a piezo element to detect a knocking sound.
It reads an analog pin and compares the result to a set threshold.
If the result is greater than the threshold, it writes
"knock" to the serial port, and toggles the LED on pin 13.
The circuit:
* + connection of the piezo attached to analog in 0
* - connection of the piezo attached to ground
* 1-megohm resistor attached from analog in 0 to ground
http://www.arduino.cc/en/Tutorial/Knock
created 25 Mar 2007
by David Cuartielles <http://www.0j0.org>
modified 4 Sep 2010
by Tom Igoe
This example code is in the public domain.
*/
// these constants won't change:
const int ledPin = 13; // led connected to digital pin 13
const int knockSensor = A0; // the piezo is connected to analog pin 0
const int threshold = 100; // threshold value to decide when the detected sound is a knock or not
// these variables will change:
int sensorReading = 0; // variable to store the value read from the sensor pin
int ledState = LOW; // variable used to store the last LED status, to toggle the light
void setup() {
pinMode(ledPin, OUTPUT); // declare the ledPin as as OUTPUT
Serial.begin(9600); // use the serial port
}
void loop() {
// read the sensor and store it in the variable sensorReading:
sensorReading = analogRead(knockSensor);
// if the sensor reading is greater than the threshold:
if (sensorReading >= threshold) {
// toggle the status of the ledPin:
ledState = !ledState;
// update the LED pin itself:
digitalWrite(ledPin, ledState);
// send the string "Knock!" back to the computer, followed by newline
Serial.println("Knock!");
}
delay(100); // delay to avoid overloading the serial port buffer
}

63
arduino-0022-linux-x64/examples/6.Sensors/Memsic2125/Memsic2125.pde Normal file
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/*
Memsic2125
Read the Memsic 2125 two-axis accelerometer. Converts the
pulses output by the 2125 into milli-g's (1/1000 of earth's
gravity) and prints them over the serial connection to the
computer.
The circuit:
* X output of accelerometer to digital pin 2
* Y output of accelerometer to digital pin 3
* +V of accelerometer to +5V
* GND of accelerometer to ground
http://www.arduino.cc/en/Tutorial/Memsic2125
created 6 Nov 2008
by David A. Mellis
modified 30 Jun 2009
by Tom Igoe
This example code is in the public domain.
*/
// these constants won't change:
const int xPin = 2; // X output of the accelerometer
const int yPin = 3; // Y output of the accelerometer
void setup() {
// initialize serial communications:
Serial.begin(9600);
// initialize the pins connected to the accelerometer
// as inputs:
pinMode(xPin, INPUT);
pinMode(yPin, INPUT);
}
void loop() {
// variables to read the pulse widths:
int pulseX, pulseY;
// variables to contain the resulting accelerations
int accelerationX, accelerationY;
// read pulse from x- and y-axes:
pulseX = pulseIn(xPin,HIGH);
pulseY = pulseIn(yPin,HIGH);
// convert the pulse width into acceleration
// accelerationX and accelerationY are in milli-g's:
// earth's gravity is 1000 milli-g's, or 1g.
accelerationX = ((pulseX / 10) - 500) * 8;
accelerationY = ((pulseY / 10) - 500) * 8;
// print the acceleration
Serial.print(accelerationX);
// print a tab character:
Serial.print("\t");
Serial.print(accelerationY);
Serial.println();
delay(100);
}

84
arduino-0022-linux-x64/examples/6.Sensors/Ping/Ping.pde Normal file
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/* Ping))) Sensor
This sketch reads a PING))) ultrasonic rangefinder and returns the
distance to the closest object in range. To do this, it sends a pulse
to the sensor to initiate a reading, then listens for a pulse
to return. The length of the returning pulse is proportional to
the distance of the object from the sensor.
The circuit:
* +V connection of the PING))) attached to +5V
* GND connection of the PING))) attached to ground
* SIG connection of the PING))) attached to digital pin 7
http://www.arduino.cc/en/Tutorial/Ping
created 3 Nov 2008
by David A. Mellis
modified 30 Jun 2009
by Tom Igoe
This example code is in the public domain.
*/
// this constant won't change. It's the pin number
// of the sensor's output:
const int pingPin = 7;
void setup() {
// initialize serial communication:
Serial.begin(9600);
}
void loop()
{
// establish variables for duration of the ping,
// and the distance result in inches and centimeters:
long duration, inches, cm;
// The PING))) is triggered by a HIGH pulse of 2 or more microseconds.
// Give a short LOW pulse beforehand to ensure a clean HIGH pulse:
pinMode(pingPin, OUTPUT);
digitalWrite(pingPin, LOW);
delayMicroseconds(2);
digitalWrite(pingPin, HIGH);
delayMicroseconds(5);
digitalWrite(pingPin, LOW);
// The same pin is used to read the signal from the PING))): a HIGH
// pulse whose duration is the time (in microseconds) from the sending
// of the ping to the reception of its echo off of an object.
pinMode(pingPin, INPUT);
duration = pulseIn(pingPin, HIGH);
// convert the time into a distance
inches = microsecondsToInches(duration);
cm = microsecondsToCentimeters(duration);
Serial.print(inches);
Serial.print("in, ");
Serial.print(cm);
Serial.print("cm");
Serial.println();
delay(100);
}
long microsecondsToInches(long microseconds)
{
// According to Parallax's datasheet for the PING))), there are
// 73.746 microseconds per inch (i.e. sound travels at 1130 feet per
// second). This gives the distance travelled by the ping, outbound
// and return, so we divide by 2 to get the distance of the obstacle.
// See: http://www.parallax.com/dl/docs/prod/acc/28015-PING-v1.3.pdf
return microseconds / 74 / 2;
}
long microsecondsToCentimeters(long microseconds)
{
// The speed of sound is 340 m/s or 29 microseconds per centimeter.
// The ping travels out and back, so to find the distance of the
// object we take half of the distance travelled.
return microseconds / 29 / 2;
}

114
arduino-0022-linux-x64/examples/7.Display/RowColumnScanning/RowColumnScanning.pde Normal file
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/*
Row-Column Scanning an 8x8 LED matrix with X-Y input
This example controls an 8x8 LED matrix using two analog inputs
created 27 May 2009
modified 4 Sep 2010
by Tom Igoe
This example works for the Lumex LDM-24488NI Matrix. See
http://sigma.octopart.com/140413/datasheet/Lumex-LDM-24488NI.pdf
for the pin connections
For other LED cathode column matrixes, you should only need to change
the pin numbers in the row[] and column[] arrays
rows are the anodes
cols are the cathodes
---------
Pin numbers:
Matrix:
* Digital pins 2 through 13,
* analog pins 2 through 5 used as digital 16 through 19
Potentiometers:
* center pins are attached to analog pins 0 and 1, respectively
* side pins attached to +5V and ground, respectively.
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/RowColumnScanning
see also http://www.tigoe.net/pcomp/code/category/arduinowiring/514 for more
*/
// 2-dimensional array of row pin numbers:
const int row[8] = {
2,7,19,5,13,18,12,16 };
// 2-dimensional array of column pin numbers:
const int col[8] = {
6,11,10,3,17,4,8,9 };
// 2-dimensional array of pixels:
int pixels[8][8];
// cursor position:
int x = 5;
int y = 5;
void setup() {
Serial.begin(9600);
// initialize the I/O pins as outputs:
// iterate over the pins:
for (int thisPin = 0; thisPin < 8; thisPin++) {
// initialize the output pins:
pinMode(col[thisPin], OUTPUT);
pinMode(row[thisPin], OUTPUT);
// take the col pins (i.e. the cathodes) high to ensure that
// the LEDS are off:
digitalWrite(col[thisPin], HIGH);
}
// initialize the pixel matrix:
for (int x = 0; x < 8; x++) {
for (int y = 0; y < 8; y++) {
pixels[x][y] = HIGH;
}
}
}
void loop() {
// read input:
readSensors();
// draw the screen:
refreshScreen();
}
void readSensors() {
// turn off the last position:
pixels[x][y] = HIGH;
// read the sensors for X and Y values:
x = 7 - map(analogRead(A0), 0, 1023, 0, 7);
y = map(analogRead(A1), 0, 1023, 0, 7);
// set the new pixel position low so that the LED will turn on
// in the next screen refresh:
pixels[x][y] = LOW;
}
void refreshScreen() {
// iterate over the rows (anodes):
for (int thisRow = 0; thisRow < 8; thisRow++) {
// take the row pin (anode) high:
digitalWrite(row[thisRow], HIGH);
// iterate over the cols (cathodes):
for (int thisCol = 0; thisCol < 8; thisCol++) {
// get the state of the current pixel;
int thisPixel = pixels[thisRow][thisCol];
// when the row is HIGH and the col is LOW,
// the LED where they meet turns on:
digitalWrite(col[thisCol], thisPixel);
// turn the pixel off:
if (thisPixel == LOW) {
digitalWrite(col[thisCol], HIGH);
}
}
// take the row pin low to turn off the whole row:
digitalWrite(row[thisRow], LOW);
}
}

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arduino-0022-linux-x64/examples/7.Display/barGraph/barGraph.pde Normal file
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/*
LED bar graph
Turns on a series of LEDs based on the value of an analog sensor.
This is a simple way to make a bar graph display. Though this graph
uses 10 LEDs, you can use any number by changing the LED count
and the pins in the array.
This method can be used to control any series of digital outputs that
depends on an analog input.
The circuit:
* LEDs from pins 2 through 11 to ground
created 4 Sep 2010
by Tom Igoe
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/BarGraph
*/
// these constants won't change:
const int analogPin = A0; // the pin that the potentiometer is attached to
const int ledCount = 10; // the number of LEDs in the bar graph
int ledPins[] = {
2, 3, 4, 5, 6, 7,8,9,10,11 }; // an array of pin numbers to which LEDs are attached
void setup() {
// loop over the pin array and set them all to output:
for (int thisLed = 0; thisLed < ledCount; thisLed++) {
pinMode(ledPins[thisLed], OUTPUT);
}
}
void loop() {
// read the potentiometer:
int sensorReading = analogRead(analogPin);
// map the result to a range from 0 to the number of LEDs:
int ledLevel = map(sensorReading, 0, 1023, 0, ledCount);
// loop over the LED array:
for (int thisLed = 0; thisLed < ledCount; thisLed++) {
// if the array element's index is less than ledLevel,
// turn the pin for this element on:
if (thisLed < ledLevel) {
digitalWrite(ledPins[thisLed], HIGH);
}
// turn off all pins higher than the ledLevel:
else {
digitalWrite(ledPins[thisLed], LOW);
}
}
}

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arduino-0022-linux-x64/examples/8.Strings/CharacterAnalysis/CharacterAnalysis.pde Normal file
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/*
Character analysis operators
Examples using the character analysis operators.
Send any byte and the sketch will tell you about it.
created 29 Nov 2010
by Tom Igoe
This example code is in the public domain.
*/
void setup() {
// Open serial communications:
Serial.begin(9600);
// send an intro:
Serial.println("send any byte and I'll tell you everything I can about it");
Serial.println();
}
void loop() {
// get any incoming bytes:
if (Serial.available() > 0) {
int thisChar = Serial.read();
// say what was sent:
Serial.print("You sent me: \'");
Serial.write(thisChar);
Serial.print("\' ASCII Value: ");
Serial.println(thisChar);
// analyze what was sent:
if(isAlphaNumeric(thisChar)) {
Serial.println("it's alphanumeric");
}
if(isAlpha(thisChar)) {
Serial.println("it's alphabetic");
}
if(isAscii(thisChar)) {
Serial.println("it's ASCII");
}
if(isWhitespace(thisChar)) {
Serial.println("it's whitespace");
}
if(isControl(thisChar)) {
Serial.println("it's a control character");
}
if(isDigit(thisChar)) {
Serial.println("it's a numeric digit");
}
if(isGraph(thisChar)) {
Serial.println("it's a printable character that's not whitespace");
}
if(isLowerCase(thisChar)) {
Serial.println("it's lower case");
}
if(isPrintable(thisChar)) {
Serial.println("it's printable");
}
if(isPunct(thisChar)) {
Serial.println("it's punctuation");
}
if(isSpace(thisChar)) {
Serial.println("it's a space character");
}
if(isUpperCase(thisChar)) {
Serial.println("it's upper case");
}
if (isHexadecimalDigit(thisChar)) {
Serial.println("it's a valid hexadecimaldigit (i.e. 0 - 9, a - F, or A - F)");
}
// add some space and ask for another byte:
Serial.println();
Serial.println("Give me another byte:");
Serial.println();
}
}

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/*
Adding Strings together
Examples of how to add strings together
You can also add several different data types to string, as shown here:
created 27 July 2010
modified 4 Sep 2010
by Tom Igoe
http://arduino.cc/en/Tutorial/StringAdditionOperator
This example code is in the public domain.
*/
// declare three strings:
String stringOne, stringTwo, stringThree;
void setup() {
Serial.begin(9600);
stringOne = String("stringThree = ");
stringTwo = String("this string");
stringThree = String ();
Serial.println("\n\nAdding strings together (concatenation):");
}
void loop() {
// adding a constant integer to a string:
stringThree = stringOne + 123;
Serial.println(stringThree); // prints "stringThree = 123"
// adding a constant long interger to a string:
stringThree = stringOne + 123456789;
Serial.println(stringThree); // prints " You added 123456789"
// adding a constant character to a string:
stringThree = stringOne + 'A';
Serial.println(stringThree); // prints "You added A"
// adding a constant string to a string:
stringThree = stringOne + "abc";
Serial.println(stringThree); // prints "You added abc"
stringThree = stringOne + stringTwo;
Serial.println(stringThree); // prints "You added this string"
// adding a variable integer to a string:
int sensorValue = analogRead(A0);
stringOne = "Sensor value: ";
stringThree = stringOne + sensorValue;
Serial.println(stringThree); // prints "Sensor Value: 401" or whatever value analogRead(A0) has
// adding a variable long integer to a string:
long currentTime = millis();
stringOne="millis() value: ";
stringThree = stringOne + millis();
Serial.println(stringThree); // prints "The millis: 345345" or whatever value currentTime has
// do nothing while true:
while(true);
}

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/*
Appending to Strings using the += operator and concat()
Examples of how to append different data types to strings
created 27 July 2010
modified 4 Sep 2010
by Tom Igoe
http://arduino.cc/en/Tutorial/StringAppendOperator
This example code is in the public domain.
*/
String stringOne, stringTwo;
void setup() {
Serial.begin(9600);
stringOne = String("Sensor ");
stringTwo = String("value");
Serial.println("\n\nAppending to a string:");
}
void loop() {
Serial.println(stringOne); // prints "Sensor "
// adding a string to a string:
stringOne += stringTwo;
Serial.println(stringOne); // prints "Sensor value"
// adding a constant string to a string:
stringOne += " for input ";
Serial.println(stringOne); // prints "Sensor value for input"
// adding a constant character to a string:
stringOne += 'A';
Serial.println(stringOne); // prints "Sensor value for input A"
// adding a constant integer to a string:
stringOne += 0;
Serial.println(stringOne); // prints "Sensor value for input A0"
// adding a constant string to a string:
stringOne += ": ";
Serial.println(stringOne); // prints "Sensor value for input"
// adding a variable integer to a string:
stringOne += analogRead(A0);
Serial.println(stringOne); // prints "Sensor value for input A0: 456" or whatever analogRead(A0) is
Serial.println("\n\nchanging the Strings' values");
stringOne = "A long integer: ";
stringTwo = "The millis(): ";
// adding a constant long integer to a string:
stringOne += 123456789;
Serial.println(stringOne); // prints "A long integer: 123456789"
// using concat() to add a long variable to a string:
stringTwo.concat(millis());
Serial.println(stringTwo); // prints "The millis(): 43534" or whatever the value of the millis() is
// do nothing while true:
while(true);
}

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/*
String Case changes
Examples of how to change the case of a string
created 27 July 2010
by Tom Igoe
http://arduino.cc/en/Tutorial/StringCaseChanges
This example code is in the public domain.
*/
void setup() {
Serial.begin(9600);
Serial.println("\n\nString case changes:");
}
void loop() {
// toUpperCase() changes all letters to upper case:
String stringOne = "<html><head><body>";
Serial.println(stringOne);
stringOne = (stringOne.toUpperCase());
Serial.println(stringOne);
// toLowerCase() changes all letters to lower case:
String stringTwo = "</BODY></HTML>";
Serial.println(stringTwo);
stringTwo = stringTwo.toLowerCase();
Serial.println(stringTwo);
// do nothing while true:
while(true);
}

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/*
String charAt() and setCharAt()
Examples of how to get and set characters of a String
created 27 July 2010
by Tom Igoe
http://arduino.cc/en/Tutorial/StringCharacters
This example code is in the public domain.
*/
void setup() {
Serial.begin(9600);
Serial.println("\n\nString charAt() and setCharAt():");
}
void loop() {
// make a string to report a sensor reading:
String reportString = "SensorReading: 456";
Serial.println(reportString);
// the reading's most significant digit is at position 15 in the reportString:
String mostSignificantDigit = reportString.charAt(15);
Serial.println("Most significant digit of the sensor reading is: " + mostSignificantDigit);
// add blank space:
Serial.println();
// you can alo set the character of a string. Change the : to a = character
reportString.setCharAt(13, '=');
Serial.println(reportString);
// do nothing while true:
while(true);
}

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/*
Comparing Strings
Examples of how to compare strings using the comparison operators
created 27 July 2010
modified 4 Sep 2010
by Tom Igoe
http://arduino.cc/en/Tutorial/StringComparisonOperators
This example code is in the public domain.
*/
String stringOne, stringTwo;
void setup() {
Serial.begin(9600);
stringOne = String("this");
stringTwo = String("that");
Serial.println("\n\nComparing Strings:");
}
void loop() {
// two strings equal:
if (stringOne == "this") {
Serial.println("StringOne == \"this\"");
}
// two strings not equal:
if (stringOne != stringTwo) {
Serial.println(stringOne + " =! " + stringTwo);
}
// two strings not equal (case sensitivity matters):
stringOne = "This";
stringTwo = "this";
if (stringOne != stringTwo) {
Serial.println(stringOne + " =! " + stringTwo);
}
// you can also use equals() to see if two strings are the same:
if (stringOne.equals(stringTwo)) {
Serial.println(stringOne + " equals " + stringTwo);
}
else {
Serial.println(stringOne + " does not equal " + stringTwo);
}
// or perhaps you want to ignore case:
if (stringOne.equalsIgnoreCase(stringTwo)) {
Serial.println(stringOne + " equals (ignoring case) " + stringTwo);
}
else {
Serial.println(stringOne + " does not equal (ignoring case) " + stringTwo);
}
// a numeric string compared to the number it represents:
stringOne = "1";
int numberOne = 1;
if (stringOne == numberOne) {
Serial.println(stringOne + " = " + numberOne);
}
// two numeric strings compared:
stringOne = "2";
stringTwo = "1";
if (stringOne >= stringTwo) {
Serial.println(stringOne + " >= " + stringTwo);
}
// comparison operators can be used to compare strings for alphabetic sorting too:
stringOne = String("Brown");
if (stringOne < "Charles") {
Serial.println(stringOne + " < Charles");
}
if (stringOne > "Adams") {
Serial.println(stringOne + " > Adams");
}
if (stringOne <= "Browne") {
Serial.println(stringOne + " <= Browne");
}
if (stringOne >= "Brow") {
Serial.println(stringOne + " >= Brow");
}
// the compareTo() operator also allows you to compare strings
// it evaluates on the first character that's different.
// if the first character of the string you're comparing to
// comes first in alphanumeric order, then compareTo() is greater than 0:
stringOne = "Cucumber";
stringTwo = "Cucuracha";
if (stringOne.compareTo(stringTwo) < 0 ) {
Serial.println(stringOne + " comes before " + stringTwo);
}
else {
Serial.println(stringOne + " comes after " + stringTwo);
}
delay(10000); // because the next part is a loop:
// compareTo() is handy when you've got strings with numbers in them too:
while (true) {
stringOne = "Sensor: ";
stringTwo= "Sensor: ";
stringOne += analogRead(A0);
stringTwo += analogRead(A5);
if (stringOne.compareTo(stringTwo) < 0 ) {
Serial.println(stringOne + " comes before " + stringTwo);
}
else {
Serial.println(stringOne + " comes after " + stringTwo);
}
}
}

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/*
String constructors
Examples of how to create strings from other data types
created 27 July 2010
modified 4 Sep 2010
by Tom Igoe
http://arduino.cc/en/Tutorial/StringConstructors
This example code is in the public domain.
*/
void setup() {
Serial.begin(9600);
}
void loop() {
// using a constant String:
String stringOne = "Hello String";
Serial.println(stringOne); // prints "Hello String"
// converting a constant char into a String:
stringOne = String('a');
Serial.println(stringOne); // prints "a"
// converting a constant string into a String object:
String stringTwo = String("This is a string");
Serial.println(stringTwo); // prints "This is a string"
// concatenating two strings:
stringOne = String(stringTwo + " with more");
// prints "This is a string with more":
Serial.println(stringOne);
// using a constant integer:
stringOne = String(13);
Serial.println(stringOne); // prints "13"
// using an int and a base:
stringOne = String(analogRead(A0), DEC);
// prints "453" or whatever the value of analogRead(A0) is
Serial.println(stringOne);
// using an int and a base (hexadecimal):
stringOne = String(45, HEX);
// prints "2d", which is the hexadecimal version of decimal 45:
Serial.println(stringOne);
// using an int and a base (binary)
stringOne = String(255, BIN);
// prints "11111111" which is the binary value of 255
Serial.println(stringOne);
// using a long and a base:
stringOne = String(millis(), DEC);
// prints "123456" or whatever the value of millis() is:
Serial.println(stringOne);
// do nothing while true:
while(true);
}

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/*
String indexOf() and lastIndexOf() functions
Examples of how to evaluate, look for, and replace characters in a String
created 27 July 2010
by Tom Igoe
http://arduino.cc/en/Tutorial/StringIndexOf
This example code is in the public domain.
*/
void setup() {
Serial.begin(9600);
Serial.println("\n\nString indexOf() and lastIndexOf() functions:");
}
void loop() {
// indexOf() returns the position (i.e. index) of a particular character
// in a string. For example, if you were parsing HTML tags, you could use it:
String stringOne = "<HTML><HEAD><BODY>";
int firstClosingBracket = stringOne.indexOf('>');
Serial.println("The index of > in the string " + stringOne + " is " + firstClosingBracket);
stringOne = "<HTML><HEAD><BODY>";
int secondOpeningBracket = firstClosingBracket + 1;
int secondClosingBracket = stringOne.indexOf('>', secondOpeningBracket );
Serial.println("The index of the second > in the string " + stringOne + " is " + secondClosingBracket);
// you can also use indexOf() to search for Strings:
stringOne = "<HTML><HEAD><BODY>";
int bodyTag = stringOne.indexOf("<BODY>");
Serial.println("The index of the body tag in the string " + stringOne + " is " + bodyTag);
stringOne = "<UL><LI>item<LI>item<LI>item</UL>";
int firstListItem = stringOne.indexOf("<LI>");
int secondListItem = stringOne.indexOf("item", firstListItem + 1 );
Serial.println("The index of the second list item in the string " + stringOne + " is " + secondClosingBracket);
// lastIndexOf() gives you the last occurrence of a character or string:
int lastOpeningBracket = stringOne.lastIndexOf('<');
Serial.println("The index of the last < in the string " + stringOne + " is " + lastOpeningBracket);
int lastListItem = stringOne.lastIndexOf("<LI>");
Serial.println("The index of the last list item in the string " + stringOne + " is " + lastListItem);
// lastIndexOf() can also search for a string:
stringOne = "<p>Lorem ipsum dolor sit amet</p><p>Ipsem</p><p>Quod</p>";
int lastParagraph = stringOne.lastIndexOf("<p");
int secondLastGraf = stringOne.lastIndexOf("<p", lastParagraph - 1);
Serial.println("The index of the second last paragraph tag " + stringOne + " is " + secondLastGraf);
// do nothing while true:
while(true);
}

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/*
String length()
Examples of how to use length() in a String.
Open the Serial Monitor and start sending characters to see the results.
created 1 Aug 2010
by Tom Igoe
http://arduino.cc/en/Tutorial/StringLengthTrim
This example code is in the public domain.
*/
String txtMsg = ""; // a string for incoming text
int lastStringLength = txtMsg.length(); // previous length of the String
void setup() {
// open the serial port:
Serial.begin(9600);
}
void loop() {
// add any incoming characters to the String:
while (Serial.available() > 0) {
char inChar = Serial.read();
txtMsg += inChar;
}
// print the message and a notice if it's changed:
if (txtMsg.length() != lastStringLength) {
Serial.println(txtMsg);
Serial.println(txtMsg.length());
// if the String's longer than 140 characters, complain:
if (txtMsg.length() < 140) {
Serial.println("That's a perfectly acceptable text message");
}
else {
Serial.println("That's too long for a text message.");
}
// note the length for next time through the loop:
lastStringLength = txtMsg.length();
}
}

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/*
String length() and trim()
Examples of how to use length() and trim() in a String
created 27 July 2010
by Tom Igoe
http://arduino.cc/en/Tutorial/StringLengthTrim
This example code is in the public domain.
*/
void setup() {
Serial.begin(9600);
Serial.println("\n\nString length() and trim():");
}
void loop() {
// here's a String with empty spaces at the end (called white space):
String stringOne = "Hello! ";
Serial.print(stringOne);
Serial.print("<--- end of string. Length: ");
Serial.println(stringOne.length());
// trim the white space off the string:
stringOne = stringOne.trim();
Serial.print(stringOne);
Serial.print("<--- end of trimmed string. Length: ");
Serial.println(stringOne.length());
// do nothing while true:
while(true);
}

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/*
String replace()
Examples of how to replace characters or substrings of a string
created 27 July 2010
by Tom Igoe
http://arduino.cc/en/Tutorial/StringReplace
This example code is in the public domain.
*/
void setup() {
Serial.begin(9600);
Serial.println("\n\nString replace:");
}
void loop() {
String stringOne = "<html><head><body>";
Serial.println(stringOne);
// replace() changes all instances of one substring with another:
String stringTwo = stringOne.replace("<", "</");
Serial.println(stringTwo);
// you can also use replace() on single characters:
String normalString = "bookkeeper";
Serial.println("normal: " + normalString);
String leetString = normalString.replace('o', '0');
leetString = leetString.replace('e', '3');
Serial.println("l33tspeak: " + leetString);
// do nothing while true:
while(true);
}

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/*
String startWith() and endsWith()
Examples of how to use startsWith() and endsWith() in a String
created 27 July 2010
modified 4 Sep 2010
by Tom Igoe
http://arduino.cc/en/Tutorial/StringStartsWithEndsWith
This example code is in the public domain.
*/
void setup() {
Serial.begin(9600);
Serial.println("\n\nString startsWith() and endsWith():");
}
void loop() {
// startsWith() checks to see if a String starts with a particular substring:
String stringOne = "HTTP/1.1 200 OK";
Serial.println(stringOne);
if (stringOne.startsWith("HTTP/1.1")) {
Serial.println("Server's using http version 1.1");
}
// you can also look for startsWith() at an offset position in the string:
stringOne = "HTTP/1.1 200 OK";
if (stringOne.startsWith("200 OK", 9)) {
Serial.println("Got an OK from the server");
}
// endsWith() checks to see if a String ends with a particular character:
String sensorReading = "sensor = ";
sensorReading += analogRead(A0);
Serial.print (sensorReading);
if (sensorReading.endsWith(0)) {
Serial.println(". This reading is divisible by ten");
}
else {
Serial.println(". This reading is not divisible by ten");
}
// do nothing while true:
while(true);
}

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/*
String substring()
Examples of how to use substring in a String
created 27 July 2010
by Tom Igoe
http://arduino.cc/en/Tutorial/StringSubstring
This example code is in the public domain.
*/
void setup() {
Serial.begin(9600);
Serial.println("\n\nString substring():");
}
void loop() {
// Set up a String:
String stringOne = "Content-Type: text/html";
Serial.println(stringOne);
// substring(index) looks for the substring from the index position to the end:
if (stringOne.substring(19) == "html") {
Serial.println("It's an html file");
}
// you can also look for a substring in the middle of a string:
if (stringOne.substring(14,18) == "text") {
Serial.println("It's a text-based file");
}
// do nothing while true:
while(true);
}

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/*
String to Integer conversion
Reads a serial input string until it sees a newline, then converts
the string to a number if the characters are digits.
The circuit:
No external components needed.
created 29 Nov 2010
by Tom Igoe
This example code is in the public domain.
*/
String inString = ""; // string to hold input
void setup() {
// Initialize serial communications:
Serial.begin(9600);
}
void loop() {
// Read serial input:
while (Serial.available() > 0) {
int inChar = Serial.read();
if (isDigit(inChar)) {
// convert the incoming byte to a char
// and add it to the string:
inString += (char)inChar;
}
// if you get a newline, print the string,
// then the string's value:
if (inChar == '\n') {
Serial.print("Value:");
Serial.println(inString.toInt());
Serial.print("String: ");
Serial.println(inString);
// clear the string for new input:
inString = "";
}
}
}

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/*
Serial RGB controller
Reads a serial input string looking for three comma-separated
integers with a newline at the end. Values should be between
0 and 255. The sketch uses those values to set the color
of an RGB LED attached to pins 9 - 11.
The circuit:
* Common-anode RGB LED cathodes attached to pins 9 - 11
* LED anode connected to pin 13
To turn on any given channel, set the pin LOW.
To turn off, set the pin HIGH. The higher the analogWrite level,
the lower the brightness.
created 29 Nov 2010
by Tom Igoe
This example code is in the public domain.
*/
String inString = ""; // string to hold input
int currentColor = 0;
int red, green, blue = 0;
void setup() {
// Initialize serial communications:
Serial.begin(9600);
// set LED cathode pins as outputs:
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
// turn on pin 13 to power the LEDs:
pinMode(13, OUTPUT);
digitalWrite(13, HIGH);
}
void loop() {
int inChar;
// Read serial input:
if (Serial.available() > 0) {
inChar = Serial.read();
}
if (isDigit(inChar)) {
// convert the incoming byte to a char
// and add it to the string:
inString += (char)inChar;
}
// if you get a comma, convert to a number,
// set the appropriate color, and increment
// the color counter:
if (inChar == ',') {
// do something different for each value of currentColor:
switch (currentColor) {
case 0: // 0 = red
red = inString.toInt();
// clear the string for new input:
inString = "";
break;
case 1: // 1 = green:
green = inString.toInt();
// clear the string for new input:
inString = "";
break;
}
currentColor++;
}
// if you get a newline, you know you've got
// the last color, i.e. blue:
if (inChar == '\n') {
blue = inString.toInt();
// set the levels of the LED.
// subtract value from 255 because a higher
// analogWrite level means a dimmer LED, since
// you're raising the level on the anode:
analogWrite(11, 255 - red);
analogWrite(9, 255 - green);
analogWrite(10, 255 - blue);
// print the colors:
Serial.print("Red: ");
Serial.print(red);
Serial.print(", Green: ");
Serial.print(green);
Serial.print(", Blue: ");
Serial.println(blue);
// clear the string for new input:
inString = "";
// reset the color counter:
currentColor = 0;
}
}
/*
Here's a Processing sketch that will draw a color wheel and send a serial
string with the color you click on:
// Subtractive Color Wheel with Serial
// Based on a Processing example by Ira Greenberg.
// Serial output added by Tom Igoe
//
// The primaries are red, yellow, and blue. The secondaries are green,
// purple, and orange. The tertiaries are yellow-orange, red-orange,
// red-purple, blue-purple, blue-green, and yellow-green.
//
// Create a shade or tint of the subtractive color wheel using
// SHADE or TINT parameters.
// Updated 29 November 2010.
import processing.serial.*;
int segs = 12;
int steps = 6;
float rotAdjust = TWO_PI / segs / 2;
float radius;
float segWidth;
float interval = TWO_PI / segs;
Serial myPort;
void setup() {
size(200, 200);
background(127);
smooth();
ellipseMode(RADIUS);
noStroke();
// make the diameter 90% of the sketch area
radius = min(width, height) * 0.45;
segWidth = radius / steps;
// swap which line is commented out to draw the other version
// drawTintWheel();
drawShadeWheel();
// open the first serial port in your computer's list
myPort = new Serial(this, Serial.list()[0], 9600);
}
void drawShadeWheel() {
for (int j = 0; j < steps; j++) {
color[] cols = {
color(255-(255/steps)*j, 255-(255/steps)*j, 0),
color(255-(255/steps)*j, (255/1.5)-((255/1.5)/steps)*j, 0),
color(255-(255/steps)*j, (255/2)-((255/2)/steps)*j, 0),
color(255-(255/steps)*j, (255/2.5)-((255/2.5)/steps)*j, 0),
color(255-(255/steps)*j, 0, 0),
color(255-(255/steps)*j, 0, (255/2)-((255/2)/steps)*j),
color(255-(255/steps)*j, 0, 255-(255/steps)*j),
color((255/2)-((255/2)/steps)*j, 0, 255-(255/steps)*j),
color(0, 0, 255-(255/steps)*j),
color(0, 255-(255/steps)*j, (255/2.5)-((255/2.5)/steps)*j),
color(0, 255-(255/steps)*j, 0),
color((255/2)-((255/2)/steps)*j, 255-(255/steps)*j, 0)
};
for (int i = 0; i < segs; i++) {
fill(cols[i]);
arc(width/2, height/2, radius, radius,
interval*i+rotAdjust, interval*(i+1)+rotAdjust);
}
radius -= segWidth;
}
}
void drawTintWheel() {
for (int j = 0; j < steps; j++) {
color[] cols = {
color((255/steps)*j, (255/steps)*j, 0),
color((255/steps)*j, ((255/1.5)/steps)*j, 0),
color((255/steps)*j, ((255/2)/steps)*j, 0),
color((255/steps)*j, ((255/2.5)/steps)*j, 0),
color((255/steps)*j, 0, 0),
color((255/steps)*j, 0, ((255/2)/steps)*j),
color((255/steps)*j, 0, (255/steps)*j),
color(((255/2)/steps)*j, 0, (255/steps)*j),
color(0, 0, (255/steps)*j),
color(0, (255/steps)*j, ((255/2.5)/steps)*j),
color(0, (255/steps)*j, 0),
color(((255/2)/steps)*j, (255/steps)*j, 0)
};
for (int i = 0; i < segs; i++) {
fill(cols[i]);
arc(width/2, height/2, radius, radius,
interval*i+rotAdjust, interval*(i+1)+rotAdjust);
}
radius -= segWidth;
}
}
void draw() {
// nothing happens here
}
void mouseReleased() {
// get the color of the mouse position's pixel:
color targetColor = get(mouseX, mouseY);
// get the component values:
int r = int(red(targetColor));
int g = int(green(targetColor));
int b = int(blue(targetColor));
// make a comma-separated string:
String colorString = r + "," + g + "," + b + "\n";
// send it out the serial port:
myPort.write(colorString );
}
*/

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// this sketch turns the Arduino into a AVRISP
// using the following pins:
// 10: slave reset
// 11: MOSI
// 12: MISO
// 13: SCK
// Put an LED (with resistor) on the following pins:
// 9: Heartbeat - shows the programmer is running
// 8: Error - Lights up if something goes wrong (use red if that makes sense)
// 7: Programming - In communication with the slave
//
// October 2009 by David A. Mellis
// - Added support for the read signature command
//
// February 2009 by Randall Bohn
// - Added support for writing to EEPROM (what took so long?)
// Windows users should consider WinAVR's avrdude instead of the
// avrdude included with Arduino software.
//
// January 2008 by Randall Bohn
// - Thanks to Amplificar for helping me with the STK500 protocol
// - The AVRISP/STK500 (mk I) protocol is used in the arduino bootloader
// - The SPI functions herein were developed for the AVR910_ARD programmer
// - More information at http://code.google.com/p/mega-isp
#include "pins_arduino.h" // defines SS,MOSI,MISO,SCK
#define RESET SS
#define LED_HB 9
#define LED_ERR 8
#define LED_PMODE 7
#define HWVER 2
#define SWMAJ 1
#define SWMIN 18
// STK Definitions
#define STK_OK 0x10
#define STK_FAILED 0x11
#define STK_UNKNOWN 0x12
#define STK_INSYNC 0x14
#define STK_NOSYNC 0x15
#define CRC_EOP 0x20 //ok it is a space...
void pulse(int pin, int times);
void setup() {
Serial.begin(19200);
pinMode(7, OUTPUT);
pulse(7, 2);
pinMode(8, OUTPUT);
pulse(8, 2);
pinMode(9, OUTPUT);
pulse(9, 2);
}
int error=0;
int pmode=0;
// address for reading and writing, set by 'U' command
int here;
uint8_t buff[256]; // global block storage
#define beget16(addr) (*addr * 256 + *(addr+1) )
typedef struct param {
uint8_t devicecode;
uint8_t revision;
uint8_t progtype;
uint8_t parmode;
uint8_t polling;
uint8_t selftimed;
uint8_t lockbytes;
uint8_t fusebytes;
int flashpoll;
int eeprompoll;
int pagesize;
int eepromsize;
int flashsize;
}
parameter;
parameter param;
// this provides a heartbeat on pin 9, so you can tell the software is running.
uint8_t hbval=128;
int8_t hbdelta=8;
void heartbeat() {
if (hbval > 192) hbdelta = -hbdelta;
if (hbval < 32) hbdelta = -hbdelta;
hbval += hbdelta;
analogWrite(LED_HB, hbval);
delay(40);
}
void loop(void) {
// is pmode active?
if (pmode) digitalWrite(LED_PMODE, HIGH);
else digitalWrite(LED_PMODE, LOW);
// is there an error?
if (error) digitalWrite(LED_ERR, HIGH);
else digitalWrite(LED_ERR, LOW);
// light the heartbeat LED
heartbeat();
if (Serial.available()) {
avrisp();
}
}
uint8_t getch() {
while(!Serial.available());
return Serial.read();
}
void readbytes(int n) {
for (int x = 0; x < n; x++) {
buff[x] = Serial.read();
}
}
#define PTIME 30
void pulse(int pin, int times) {
do {
digitalWrite(pin, HIGH);
delay(PTIME);
digitalWrite(pin, LOW);
delay(PTIME);
}
while (times--);
}
void spi_init() {
uint8_t x;
SPCR = 0x53;
x=SPSR;
x=SPDR;
}
void spi_wait() {
do {
}
while (!(SPSR & (1 << SPIF)));
}
uint8_t spi_send(uint8_t b) {
uint8_t reply;
SPDR=b;
spi_wait();
reply = SPDR;
return reply;
}
uint8_t spi_transaction(uint8_t a, uint8_t b, uint8_t c, uint8_t d) {
uint8_t n;
spi_send(a);
n=spi_send(b);
//if (n != a) error = -1;
n=spi_send(c);
return spi_send(d);
}
void empty_reply() {
if (CRC_EOP == getch()) {
Serial.print((char)STK_INSYNC);
Serial.print((char)STK_OK);
}
else {
Serial.print((char)STK_NOSYNC);
}
}
void breply(uint8_t b) {
if (CRC_EOP == getch()) {
Serial.print((char)STK_INSYNC);
Serial.print((char)b);
Serial.print((char)STK_OK);
}
else {
Serial.print((char)STK_NOSYNC);
}
}
void get_version(uint8_t c) {
switch(c) {
case 0x80:
breply(HWVER);
break;
case 0x81:
breply(SWMAJ);
break;
case 0x82:
breply(SWMIN);
break;
case 0x93:
breply('S'); // serial programmer
break;
default:
breply(0);
}
}
void set_parameters() {
// call this after reading paramter packet into buff[]
param.devicecode = buff[0];
param.revision = buff[1];
param.progtype = buff[2];
param.parmode = buff[3];
param.polling = buff[4];
param.selftimed = buff[5];
param.lockbytes = buff[6];
param.fusebytes = buff[7];
param.flashpoll = buff[8];
// ignore buff[9] (= buff[8])
//getch(); // discard second value
// WARNING: not sure about the byte order of the following
// following are 16 bits (big endian)
param.eeprompoll = beget16(&buff[10]);
param.pagesize = beget16(&buff[12]);
param.eepromsize = beget16(&buff[14]);
// 32 bits flashsize (big endian)
param.flashsize = buff[16] * 0x01000000
+ buff[17] * 0x00010000
+ buff[18] * 0x00000100
+ buff[19];
}
void start_pmode() {
spi_init();
// following delays may not work on all targets...
pinMode(RESET, OUTPUT);
digitalWrite(RESET, HIGH);
pinMode(SCK, OUTPUT);
digitalWrite(SCK, LOW);
delay(50);
digitalWrite(RESET, LOW);
delay(50);
pinMode(MISO, INPUT);
pinMode(MOSI, OUTPUT);
spi_transaction(0xAC, 0x53, 0x00, 0x00);
pmode = 1;
}
void end_pmode() {
pinMode(MISO, INPUT);
pinMode(MOSI, INPUT);
pinMode(SCK, INPUT);
pinMode(RESET, INPUT);
pmode = 0;
}
void universal() {
int w;
uint8_t ch;
for (w = 0; w < 4; w++) {
buff[w] = getch();
}
ch = spi_transaction(buff[0], buff[1], buff[2], buff[3]);
breply(ch);
}
void flash(uint8_t hilo, int addr, uint8_t data) {
spi_transaction(0x40+8*hilo,
addr>>8 & 0xFF,
addr & 0xFF,
data);
}
void commit(int addr) {
spi_transaction(0x4C, (addr >> 8) & 0xFF, addr & 0xFF, 0);
}
//#define _current_page(x) (here & 0xFFFFE0)
int current_page(int addr) {
if (param.pagesize == 32) return here & 0xFFFFFFF0;
if (param.pagesize == 64) return here & 0xFFFFFFE0;
if (param.pagesize == 128) return here & 0xFFFFFFC0;
if (param.pagesize == 256) return here & 0xFFFFFF80;
return here;
}
uint8_t write_flash(int length) {
if (param.pagesize < 1) return STK_FAILED;
//if (param.pagesize != 64) return STK_FAILED;
int page = current_page(here);
int x = 0;
while (x < length) {
if (page != current_page(here)) {
commit(page);
page = current_page(here);
}
flash(LOW, here, buff[x++]);
flash(HIGH, here, buff[x++]);
here++;
}
commit(page);
return STK_OK;
}
uint8_t write_eeprom(int length) {
// here is a word address, so we use here*2
// this writes byte-by-byte,
// page writing may be faster (4 bytes at a time)
for (int x = 0; x < length; x++) {
spi_transaction(0xC0, 0x00, here*2+x, buff[x]);
delay(45);
}
return STK_OK;
}
void program_page() {
char result = (char) STK_FAILED;
int length = 256 * getch() + getch();
if (length > 256) {
Serial.print((char) STK_FAILED);
return;
}
char memtype = getch();
for (int x = 0; x < length; x++) {
buff[x] = getch();
}
if (CRC_EOP == getch()) {
Serial.print((char) STK_INSYNC);
if (memtype == 'F') result = (char)write_flash(length);
if (memtype == 'E') result = (char)write_eeprom(length);
Serial.print(result);
}
else {
Serial.print((char) STK_NOSYNC);
}
}
uint8_t flash_read(uint8_t hilo, int addr) {
return spi_transaction(0x20 + hilo * 8,
(addr >> 8) & 0xFF,
addr & 0xFF,
0);
}
char flash_read_page(int length) {
for (int x = 0; x < length; x+=2) {
uint8_t low = flash_read(LOW, here);
Serial.print((char) low);
uint8_t high = flash_read(HIGH, here);
Serial.print((char) high);
here++;
}
return STK_OK;
}
char eeprom_read_page(int length) {
// here again we have a word address
for (int x = 0; x < length; x++) {
uint8_t ee = spi_transaction(0xA0, 0x00, here*2+x, 0xFF);
Serial.print((char) ee);
}
return STK_OK;
}
void read_page() {
char result = (char)STK_FAILED;
int length = 256 * getch() + getch();
char memtype = getch();
if (CRC_EOP != getch()) {
Serial.print((char) STK_NOSYNC);
return;
}
Serial.print((char) STK_INSYNC);
if (memtype == 'F') result = flash_read_page(length);
if (memtype == 'E') result = eeprom_read_page(length);
Serial.print(result);
return;
}
void read_signature() {
if (CRC_EOP != getch()) {
Serial.print((char) STK_NOSYNC);
return;
}
Serial.print((char) STK_INSYNC);
uint8_t high = spi_transaction(0x30, 0x00, 0x00, 0x00);
Serial.print((char) high);
uint8_t middle = spi_transaction(0x30, 0x00, 0x01, 0x00);
Serial.print((char) middle);
uint8_t low = spi_transaction(0x30, 0x00, 0x02, 0x00);
Serial.print((char) low);
Serial.print((char) STK_OK);
}
//////////////////////////////////////////
//////////////////////////////////////////
////////////////////////////////////
////////////////////////////////////
int avrisp() {
uint8_t data, low, high;
uint8_t ch = getch();
switch (ch) {
case '0': // signon
empty_reply();
break;
case '1':
if (getch() == CRC_EOP) {
Serial.print((char) STK_INSYNC);
Serial.print("AVR ISP");
Serial.print((char) STK_OK);
}
break;
case 'A':
get_version(getch());
break;
case 'B':
readbytes(20);
set_parameters();
empty_reply();
break;
case 'E': // extended parameters - ignore for now
readbytes(5);
empty_reply();
break;
case 'P':
start_pmode();
empty_reply();
break;
case 'U':
here = getch() + 256 * getch();
empty_reply();
break;
case 0x60: //STK_PROG_FLASH
low = getch();
high = getch();
empty_reply();
break;
case 0x61: //STK_PROG_DATA
data = getch();
empty_reply();
break;
case 0x64: //STK_PROG_PAGE
program_page();
break;
case 0x74: //STK_READ_PAGE
read_page();
break;
case 'V':
universal();
break;
case 'Q':
error=0;
end_pmode();
empty_reply();
break;
case 0x75: //STK_READ_SIGN
read_signature();
break;
// expecting a command, not CRC_EOP
// this is how we can get back in sync
case CRC_EOP:
Serial.print((char) STK_NOSYNC);
break;
// anything else we will return STK_UNKNOWN
default:
if (CRC_EOP == getch())
Serial.print((char)STK_UNKNOWN);
else
Serial.print((char)STK_NOSYNC);
}
}