Iz ovoga si možeš kreirati što hočeš.
Ubaciš prekidač na neki pin i to je to, naravno ne koristiš onaj dio od najvećeg broj okretaja do najmanjeg.
Ovo je primjer automatskog rada serva od 0 stupnjeva do 180 i nazad.
A imaš i CRODUINO
http://www.e-radionica.com/products/croduino-basic#include <Servo.h>
Servo myservo; // create servo object to control a servo
// twelve servo objects can be created on most boards
int pos = 0; // variable to store the servo position
void setup()
{
myservo.attach(9); // attaches the servo on pin 9 to the servo object
}
void loop()
{
for(pos = 0; pos <= 180; pos += 1) // goes from 0 degrees to 180 degrees
{ // in steps of 1 degree
myservo.write(pos); // tell servo to go to position in variable 'pos'
delay(15); // waits 15ms for the servo to reach the position
}
for(pos = 180; pos>=0; pos-=1) // goes from 180 degrees to 0 degrees
{
myservo.write(pos); // tell servo to go to position in variable 'pos'
delay(15); // waits 15ms for the servo to reach the position
}
}