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49 lines
1.2 KiB
49 lines
1.2 KiB
5 years ago
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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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// nothing to do inside the setup
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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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