/****************************************************************
ColorSensor.ino
APDS-9960 RGB and Gesture Sensor
Shawn Hymel @ SparkFun Electronics
October 15, 2014
https://github.com/sparkfun/APDS-9960_RGB_and_Gesture_Sensor

Tests the color and ambient light sensing abilities of the 
APDS-9960. Configures APDS-9960 over I2C and polls the sensor for
ambient light and color levels, which are displayed over the 
serial console.

Hardware Connections:

IMPORTANT: The APDS-9960 can only accept 3.3V!
 
 Arduino Pin  APDS-9960 Board  Function
 
 3.3V         VCC              Power
 GND          GND              Ground
 A4           SDA              I2C Data
 A5           SCL              I2C Clock

Resources:
Include Wire.h and SparkFun_APDS-9960.h

Development environment specifics:
Written in Arduino 1.0.5
Tested with SparkFun Arduino Pro Mini 3.3V

This code is beerware; if you see me (or any other SparkFun 
employee) at the local, and you've found our code helpful, please
buy us a round!

Distributed as-is; no warranty is given.
****************************************************************/

#include <Wire.h>
#include <SparkFun_APDS9960.h>

// Global Variables
SparkFun_APDS9960 apds = SparkFun_APDS9960();
uint16_t ambient_light = 0;
uint16_t red_light = 0;
uint16_t green_light = 0;
uint16_t blue_light = 0;

void setup() {
  
  // Initialize Serial port
  Serial.begin(9600);
  Serial.println();
  Serial.println(F("--------------------------------"));
  Serial.println(F("SparkFun APDS-9960 - ColorSensor"));
  Serial.println(F("--------------------------------"));
  
  // Initialize APDS-9960 (configure I2C and initial values)
  if (apds.init()) {
    Serial.println(F("APDS-9960 initialization complete"));
  }
  else {
    Serial.println(F("Something went wrong during APDS-9960 init!"));
  }
  
  // Start running the APDS-9960 light sensor (no interrupts)
  if ( apds.enableLightSensor(false) ) {
    Serial.println(F("Light sensor is now running"));
  } else {
    Serial.println(F("Something went wrong during light sensor init!"));
  }
  
  // Wait for initialization and calibration to finish
  delay(500);
}

void loop() {
  
  // Read the light levels (ambient, red, green, blue)
  if (!apds.readAmbientLight(ambient_light) ||
        !apds.readRedLight(red_light) ||
        !apds.readGreenLight(green_light) ||
        !apds.readBlueLight(blue_light)) {
    Serial.println("Error reading light values");
  }
  else {
//    Serial.print("Ambient: ");
//    Serial.print(ambient_light);

    Serial.println("Sensordaten: ");

    Serial.print("Red: ");
    Serial.print(red_light);
    Serial.print(", Green: ");
    Serial.print(green_light);
    Serial.print(", Blue: ");
    Serial.print(blue_light);

    uint32_t rgb = ((red_light&0x0ff)<<16)|((green_light&0x0ff)<<8)|(blue_light&0x0ff);
    Serial.print(", RGB: ");
    Serial.println(rgb);

    int red = (rgb>>16)&0x0ff;
    int green = (rgb>>8)&0x0ff;
    int blue = (rgb)&0x0ff;
    
    Serial.println("Einzelteile: ");
        
    Serial.print("Red: ");
    Serial.print(red);
    Serial.print(", Green: ");
    Serial.print(green);
    Serial.print(", Blue: ");
    Serial.println(blue);
    
  }
  
  // Wait 10 seconds before next reading
  delay(10000);
}