arduino-0022
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/*
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* MotorKnob
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*
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* A stepper motor follows the turns of a potentiometer
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* (or other sensor) on analog input 0.
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*
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* http://www.arduino.cc/en/Reference/Stepper
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* This example code is in the public domain.
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*/
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#include <Stepper.h>
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// change this to the number of steps on your motor
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#define STEPS 100
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// create an instance of the stepper class, specifying
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// the number of steps of the motor and the pins it's
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// attached to
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Stepper stepper(STEPS, 8, 9, 10, 11);
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// the previous reading from the analog input
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int previous = 0;
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void setup()
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{
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// set the speed of the motor to 30 RPMs
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stepper.setSpeed(30);
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}
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void loop()
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{
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// get the sensor value
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int val = analogRead(0);
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// move a number of steps equal to the change in the
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// sensor reading
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stepper.step(val - previous);
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// remember the previous value of the sensor
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previous = val;
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}
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/*
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Stepper Motor Control - one revolution
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This program drives a unipolar or bipolar stepper motor.
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The motor is attached to digital pins 8 - 11 of the Arduino.
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The motor should revolve one revolution in one direction, then
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one revolution in the other direction.
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Created 11 Mar. 2007
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Modified 30 Nov. 2009
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by Tom Igoe
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*/
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#include <Stepper.h>
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const int stepsPerRevolution = 200; // change this to fit the number of steps per revolution
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// for your motor
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// initialize the stepper library on pins 8 through 11:
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Stepper myStepper(stepsPerRevolution, 8,9,10,11);
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void setup() {
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// set the speed at 60 rpm:
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myStepper.setSpeed(60);
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// initialize the serial port:
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Serial.begin(9600);
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}
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void loop() {
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// step one revolution in one direction:
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Serial.println("clockwise");
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myStepper.step(stepsPerRevolution);
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delay(500);
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// step one revolution in the other direction:
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Serial.println("counterclockwise");
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myStepper.step(-stepsPerRevolution);
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delay(500);
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}
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/*
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Stepper Motor Control - one step at a time
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This program drives a unipolar or bipolar stepper motor.
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The motor is attached to digital pins 8 - 11 of the Arduino.
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The motor will step one step at a time, very slowly. You can use this to
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test that you've got the four wires of your stepper wired to the correct
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pins. If wired correctly, all steps should be in the same direction.
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Use this also to count the number of steps per revolution of your motor,
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if you don't know it. Then plug that number into the oneRevolution
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example to see if you got it right.
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Created 30 Nov. 2009
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by Tom Igoe
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*/
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#include <Stepper.h>
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const int stepsPerRevolution = 200; // change this to fit the number of steps per revolution
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// for your motor
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// initialize the stepper library on pins 8 through 11:
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Stepper myStepper(stepsPerRevolution, 8,9,10,11);
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int stepCount = 0; // number of steps the motor has taken
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void setup() {
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// initialize the serial port:
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Serial.begin(9600);
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}
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void loop() {
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// step one step:
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myStepper.step(1);
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Serial.print("steps:" );
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Serial.println(stepCount);
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stepCount++;
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delay(500);
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}
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/*
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Stepper Motor Control - speed control
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This program drives a unipolar or bipolar stepper motor.
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The motor is attached to digital pins 8 - 11 of the Arduino.
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A potentiometer is connected to analog input 0.
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The motor will rotate in a clockwise direction. The higher the potentiometer value,
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the faster the motor speed. Because setSpeed() sets the delay between steps,
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you may notice the motor is less responsive to changes in the sensor value at
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low speeds.
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Created 30 Nov. 2009
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Modified 28 Oct 2010
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by Tom Igoe
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*/
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#include <Stepper.h>
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const int stepsPerRevolution = 200; // change this to fit the number of steps per revolution
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// for your motor
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// initialize the stepper library on pins 8 through 11:
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Stepper myStepper(stepsPerRevolution, 8,9,10,11);
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int stepCount = 0; // number of steps the motor has taken
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void setup() {
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// initialize the serial port:
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Serial.begin(9600);
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}
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void loop() {
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// read the sensor value:
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int sensorReading = analogRead(A0);
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// map it to a range from 0 to 100:
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int motorSpeed = map(sensorReading, 0, 1023, 0, 100);
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// set the motor speed:
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if (motorSpeed > 0) {
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myStepper.setSpeed(motorSpeed);
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// step 1/100 of a revolution:
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myStepper.step(stepsPerRevolution/100);
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}
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}
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