27 lines
921 B
C++
27 lines
921 B
C++
/*
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Controlling a servo position using a potentiometer (variable resistor)
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by Michal Rinott <http://people.interaction-ivrea.it/m.rinott>
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modified on 8 Nov 2013
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by Scott Fitzgerald
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http://www.arduino.cc/en/Tutorial/Knob
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*/
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#include <Servo.h>
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Servo myservo; // create servo object to control a servo
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int potpin = A0; // analog pin used to connect the potentiometer
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int val; // variable to read the value from the analog pin
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void setup() {
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myservo.attach(9); // attaches the servo on pin 9 to the servo object
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}
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void loop() {
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val = analogRead(potpin); // reads the value of the potentiometer (value between 0 and 1023)
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val = map(val, 0, 1023, 0, 180); // scale it for use with the servo (value between 0 and 180)
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myservo.write(val); // sets the servo position according to the scaled value
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delay(15); // waits for the servo to get there
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}
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