Cannon laser client

sketch.ino

#include <Servo.h>

#define SERVO_PIN  9
#define LASER_PIN  10

Servo myServo;
byte n;
int laser_active = 0;

void setup()
{
    Serial.begin(9600);
    myServo.attach(SERVO_PIN);
    pinMode(LASER_PIN, OUTPUT);
}

void laser_on()
{
    digitalWrite(LASER_PIN, HIGH);
    laser_active = 1;
}

void laser_off()
{
    digitalWrite(LASER_PIN, LOW);
    laser_active = 0;
}

void laser_toggle()
{
    if (laser_active) {
        laser_off();
    } else {
        laser_on();
    }
}

void laser_fire(int d)
{
    laser_on();
    delay(d);
    laser_off();
}

void loop()
{
    while (Serial.available() > 0) {
        n = Serial.read();
        switch (n)
        {
            case 181:
                laser_on();
                break;
            case 182:
                laser_off();
                break;
            case 183:
                laser_toggle();
                break;
            case 184:
                laser_fire(500);
                break;
            default:
                myServo.write(n);
        }
    }
}