Quadrotor

// Controlling a servo position using a potentiometer (variable resistor) 

// by Michal Rinott <http://people.interaction-ivrea.it/m.rinott> 

#include <Servo.h> 

Servo myservo;  // create servo object to control a servo 

int potpin = 0;  // analog pin used to connect the potentiometer

int val;    // variable to read the value from the analog pin 

void setup() 

{ 

  myservo.attach(9);  // attaches the servo on pin 9 to the servo object 

} 

void loop() 

{ 

  val = analogRead(potpin);            // reads the value of the potentiometer (value between 0 and 1023) 

  val = map(val, 0, 1023, 0, 179);     // scale it to use it with the servo (value between 0 and 180) 

  myservo.write(val);                  // sets the servo position according to the scaled value 

  delay(15);                           // waits for the servo to get there 

}