Code for first Object Project

Project Code

// Adafruit NeoPixel - Version: Latest 
#include <Adafruit_NeoPixel.h>

#ifdef __AVR__
  #include <avr/power.h>
#endif

//set out signal pin
#define PIN 9

//Set up pixel strip
Adafruit_NeoPixel strip = Adafruit_NeoPixel(6, PIN, NEO_GRB + NEO_KHZ800);

//Create initial RGB Target Values
int targetR = random(1,255);
int targetG = random(1,255);
int targetB = random(1,255);


void setup() {
  
  //start the strip
  strip.begin();
  
  //initialize all pixels to 'off'
  strip.show();
  
  //initialize serial comm -- for debug
  Serial.begin(9600);

  //Set Pinmodes
  pinMode(3, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
}

int randRGB(){
  return random(1,255);
};

void loop() {
  //Read the position of the input
  int redIn = analogRead(0)/4;
  int greenIn = analogRead(1)/4;
  int blueIn = analogRead(2)/4;
  
  //Get the differences between target and actual RGB values
  int redDif = redIn - targetR;
  int greenDif = greenIn - targetG;
  int blueDif = blueIn - targetB;
  
  //Figure out if the input is close enough to the target. 
  if (abs(redDif) <= 40 && abs(greenDif) <= 40 && abs(blueDif) <= 40){
    targetR = randRGB();
    targetG = randRGB();
    targetB = randRGB();
  }
  else{
    // Serial.println("R: "+String(redValue) + " G: "+ String(greenValue) + " B: "+String(blueValue));
    for(uint16_t i=0; i<strip.numPixels(); i++){
        strip.setPixelColor(i,targetR,targetG,targetB);
        strip.show();
    }
    
    //Update Input LED from sliders.
    analogWrite(3,greenIn);
    analogWrite(5,blueIn);
    analogWrite(6,redIn);
  }
}