1 // Controlling a servo position using a potentiometer (variable resistor)
2 // by Michal Rinott <http://people.interaction-ivrea.it/m.rinott>
6 Servo myservo; // create servo object to control a servo
8 int potpin = 0; // analog pin used to connect the potentiometer
9 int val; // variable to read the value from the analog pin
13 myservo.attach(9); // attaches the servo on pin 9 to the servo object
18 val = analogRead(potpin); // reads the value of the potentiometer (value between 0 and 1023)
19 val = map(val, 0, 1023, 0, 179); // scale it to use it with the servo (value between 0 and 180)
20 myservo.write(val); // sets the servo position according to the scaled value
21 delay(15); // waits for the servo to get there