#include <EEPROM.h>

int channel = 0;
int channelSave = 0;
//R = 0
//G = 1
//B = 2

int vRed = 0;
int vGreen = 0;
int vBlue = 0;

int aRed = 0;
int aGreen = 1;
int aBlue = 2;


int pinR = 9;
int pinG = 10;
int pinB = 11;


int pinT = 4;

bool hasPressed = false;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(pinR, OUTPUT);
  pinMode(pinG, OUTPUT);
  pinMode(pinB, OUTPUT);
  pinMode(pinT,INPUT_PULLUP);

  vRed = EEPROM.read(aRed);
  vGreen = EEPROM.read(aGreen);
  vBlue = EEPROM.read(aBlue);
  channel = EEPROM.read(channelSave); 

  analogWrite(pinR, vRed);
  analogWrite(pinG, vGreen);
  analogWrite(pinB, vBlue);
  
  
}

void loop() {
  // put your main code here, to run repeatedly:
  int potValue = analogRead(A0);
  float percent = potValue / 1023.0;
  EEPROM.write(channel, channelSave);
  
  
  if(channel==0) {
    vRed = 255*percent;
    analogWrite(pinR, vRed);
  } else if(channel==1) {
    vGreen = 255*percent;
    analogWrite(pinG, vGreen);
  } else if(channel==2) {
    vBlue = 255*percent;
    analogWrite(pinB, vBlue);
  }

  if(digitalRead(pinT)==LOW) {
    if(hasPressed==false) {
      Serial.println("Gedrückt");
      hasPressed = true;
      channel = channel + 1;
      channelSave = EEPROM.read(channel);
      if(channel>2) {
        channel = 0;
      }
      delay(100);
    }
  } else {
    Serial.println("Nicht gedrückt");
    hasPressed = false;
  }
  EEPROM.update(aRed,vRed);
  EEPROM.update(aGreen,vGreen);
  EEPROM.update(aBlue,vBlue);
}