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// **********************************************************
// Code by: Tal OFer ([email protected])
// pan and tilt SERVO with RGB light on it.
// using DMX proejct from http://www.mathertel.de/Arduino/DMXSerial.aspx
 
 
 
#include <DMXSerial.h>
#include <Servo.h>
 
// Constants for demo program
const int RedPin =    11;  // PWM output pin for Red Light.
const int GreenPin =  6;  // PWM output pin for Green Light.
const int BluePin =   5;  // PWM output pin for Blue Light.
const int PanPin =   3;  // Pan servo pin.
const int TiltPin =   4;  // Tilt servo pin.
 
Servo pan_seervo;
Servo tilt_seervo;
 
// default values
#define RedDefaultLevel   0
#define GreenDefaultLevel 0
#define BlueDefaultLevel  0
#define PanDefaultLevel  90
#define TiltDefaultLevel  90
 
// CHANNLES IDS
//#define FIRSTMACHINE
#ifdef FIRSTMACHINE
#define RED_CH 1
#define GREEN_CH 2
#define BLUE_CH 3
#define PAN_CH 4
#define TILT_CH 5
#else
#define RED_CH 6
#define GREEN_CH 7
#define BLUE_CH 8
#define PAN_CH 9
#define TILT_CH 10
 
#endif
 
void setup () {
  Serial.begin(9600);
  Serial.println("System started");
  DMXSerial.init(DMXReceiver);
 
  // set some default values
  DMXSerial.write(RED_CH, RedDefaultLevel);
  DMXSerial.write(GREEN_CH, GreenDefaultLevel);
  DMXSerial.write(BLUE_CH, BlueDefaultLevel);
  DMXSerial.write(PAN_CH, 128);
  DMXSerial.write(TILT_CH, 128);
 
  // enable pwm outputs
  pinMode(RedPin,   OUTPUT); // sets the digital pin as output
  pinMode(GreenPin, OUTPUT);
  pinMode(BluePin,  OUTPUT);
 
  digitalWrite(RedPin, HIGH);
  delay(500);
  digitalWrite(RedPin, LOW);
  digitalWrite(GreenPin, HIGH);
  delay(500);
  digitalWrite(GreenPin, LOW);
  digitalWrite(BluePin, HIGH);
  delay(500);
  digitalWrite(GreenPin, LOW);
 
  // attach servos
  pan_seervo.attach(PanPin);
  tilt_seervo.attach(TiltPin);
  pan_seervo.write(PanDefaultLevel);
  tilt_seervo.write(TiltDefaultLevel);
 
}
 
 
void loop() {
  // Calculate how long no data backet was received
  unsigned long lastPacket = DMXSerial.noDataSince();
 
  if (lastPacket < 5000) {
    // read recent DMX values and set pwm levels
    analogWrite(RedPin,   DMXSerial.read(RED_CH));
    analogWrite(GreenPin, DMXSerial.read(GREEN_CH));
    analogWrite(BluePin,  DMXSerial.read(BLUE_CH));
    pan_seervo.write(map(DMXSerial.read(PAN_CH), 0, 255, 0, 180));
    tilt_seervo.write(map(DMXSerial.read(TILT_CH), 0, 255, 0, 180));
  } else {
    // Show pure red color, when no data was received since 5 seconds or more.
    analogWrite(RedPin,   RedDefaultLevel);
    analogWrite(GreenPin, GreenDefaultLevel);
    analogWrite(BluePin,  BlueDefaultLevel);
    pan_seervo.write(PanDefaultLevel);
    tilt_seervo.write(TiltDefaultLevel);
  } // if
}
 
// The End.