1 // Controlling a servo position using a potentiometer (variable resistor)
2 // by Michal Rinott <http://people.interaction-ivrea.it/m.rinott>
4 // Schema: https://lab.piffa.net/schemi/potenziometro_bb.png
8 Servo myservo; // create servo object to control a servo
10 const int potpin = A0; // analog pin used to connect the potentiometer
11 int val; // variable to read the value from the analog pin
15 myservo.attach(9); // attaches the servo on pin 9 to the servo object
20 val = analogRead(potpin); // reads the value of the potentiometer (value between 0 and 1023)
21 val = map(val, 0, 1023, 0, 179); // scale it to use it with the servo (value between 0 and 180)
22 myservo.write(val); // sets the servo position according to the scaled value
23 delay(15); // waits for the servo to get there