Arduino - Controlling A Servo Motor Through Serial Input

Arduino Servo Motor Schematic

Arduino Servo Motor Code

[sourcecode language="c"]
#include <Servo.h>
Servo s;
char serialIn[3];
int pos = 0;

void setup(){
Serial.begin(9600);
s.attach(9);
s.write(pos);
}

void loop() {
while(Serial.available() > 0) {
if(Serial.read() == 'R') {
for (int i = 0; i < 3; serialIn[i++] = Serial.read());
pos = atoi(serialIn);

if(pos >= 0 && pos < 181) {
Serial.println(pos);
s.write(pos);
} else {
Serial.println('Value beyond servo range');
}
}
}
}
[/sourcecode]