arduino-0017-linux-x64

arduino-0017-linux-x64/examples/Control/Arrays/Arrays.pde

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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 
+ 
+ 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);
+  }
+}

arduino-0017-linux-x64/examples/Control/ForLoopIteration/ForLoopIteration.pde

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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 
+ 
+ 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 = 0; 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);
+  }
+}

arduino-0017-linux-x64/examples/Control/IfStatementConditional/IfStatementConditional.pde

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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
+ by Tom Igoe
+ 
+  http://arduino.cc/en/Tutorial/
+ 
+ */
+ 
+// These constants won't change:
+const int analogPin = 0;     // 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(LED, 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);
+
+}
+

arduino-0017-linux-x64/examples/Control/WhileStatementConditional/WhileStatementConditional.pde

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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 25 Jun 2009
+ by Tom Igoe
+ 
+ http://arduino.cc/en/Tutorial/WhileLoop
+ 
+ */
+
+
+// These constants won't change:
+const int sensorPin = 2;     // 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;
+  }
+}
+
+

arduino-0017-linux-x64/examples/Control/switchCase/switchCase.pde

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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
+ by Tom Igoe 
+ 
+ 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(0);
+  // 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;
+  } 
+
+}
+
+
+
+
+

arduino-0017-linux-x64/examples/Control/switchCase2/switchCase2.pde

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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 
+ 
+ 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);
+      }
+    } 
+  }
+}
+