Take a look at the
Examples:Servo:Knob code in the IDE:
// 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
}
This reads a potentiometer, and moves the servo based on the reading.
Do the same but get the reading from your remote connection instead.
void loop(){
// check outside source, see if new position came in
if (new position came in && new position is within allowed limits){
// move the servo - say 5 degrees left or 5 degrees right depending on the command - all depends on the protocol you set up.
}
else {
// do not move servo
}
} // end loop