10º, 90º, 170º

This program moves the servo to one side, to the middle, and to the other side, waiting for one second at each position. servoPulse is the function which generates the pulses needed by the servo to move. Notice the required delay(20).... this means that in the rest of the program, we cant use a long delay as we would normally or else the servo would loose its position. Instead we will use a loop that calls the servoPulse function 50 times to create a delay of 1 second. (50 loops x 20ms = 1000ms = 1 second) Its not perfect but it works!

/*  10º, 90º, 170º

    Moves servo to 3 different angles

    with a pause of 1 second each.

*/

int servoPin = 2;   // servo connected to digital pin 9

int myAngle;        // angle of the servo roughly 0-180

int pulseWidth;     // servoPulse function variable

void setup()

{

  pinMode(servoPin, OUTPUT);   // sets pin 2 as output

}

void servoPulse(int servoPin, int myAngle)    

{      

  pulseWidth = (myAngle * 10) + 600;  // determines delay  

  digitalWrite(servoPin, HIGH);       // set servo high

  delayMicroseconds(pulseWidth);      // micro pause

  digitalWrite(servoPin, LOW);        // set servo low

  delay(20);                          // refresh cycle

}

void loop()

{

  myAngle = 10;                       // starts at 10º

  for(int i=0; i<50; i++)             // loops 50 times

  {

    servoPulse(servoPin, myAngle);

  }

  myAngle = 90;                       // moves to 90º

  for(int i=0; i<50; i++)             // loops 50 times

  {

    servoPulse(servoPin, myAngle);

  }

  myAngle = 170;                      // then moves to 170º

  for(int i=0; i<50; i++)             // loops 50 times

  {

    servoPulse(servoPin, myAngle);

  }

}