#include <Servo.h>
#include <LiquidCrystal_I2C.h>

Servo servo_red;
Servo servo_green;
Servo servo_blue;

LiquidCrystal_I2C lcd(0x027,20,4);

int pot_red=A0;
int pot_green= A1;
int pot_blue= A2;

int value_red=0;
int value_green=0;
int value_blue=0;

int rgb_red=3;
int rgb_green=5;
int rgb_blue=6;

int pb_red=7;
int pb_green=8;
int pb_blue=13;

int state_red=HIGH;
int state_green=HIGH;
int state_blue=HIGH;

int red=0;
int green=0;
int blue=0;

void setup() {
  // put your setup code here, to run once:
  servo_red.attach(11);
  servo_green.attach(10);
  servo_blue.attach(9);

  lcd.begin(20,4);
  lcd.backlight();
  lcd.setCursor(4,0);
  lcd.print("Colors Mixer");

  pinMode(rgb_red, OUTPUT);
  pinMode(rgb_green, OUTPUT);
  pinMode(rgb_blue, OUTPUT);

  pinMode(pb_red, INPUT_PULLUP);
  pinMode(pb_green, INPUT_PULLUP);
  pinMode(pb_blue, INPUT_PULLUP);
}

void loop() {
  value_red=  displayPotValue(pot_red, 0, 1, "Red", servo_red);
  state_red = digitalRead(pb_red);
  if(state_red==LOW){
   
      red++;
      analogWrite(rgb_red,red );
     
    
  }
      lcd.setCursor(0,1);
      lcd.print("Red: ");
      lcd.print(value_red+red);
      lcd.print("      ");

  // put your main code here, to run repeatedly:

  displayPotValue(pot_green, 0, 2, "Green", servo_green);
  displayPotValue(pot_blue, 0, 3, "Blue", servo_blue);
  // value_red = analogRead(pot_red);
  // value_red= map(value_red, 0, 1023, 0, 255);
  // lcd.setCursor(0,1);
  // lcd.print("Red: ");
  // lcd.print(value_red);
  // lcd.print("      ");
  

  // value_green = analogRead(pot_green);
  // value_green= map(value_green, 0, 1023, 0, 255);
  // lcd.setCursor(0,2);
  // lcd.print("Green: ");
  // lcd.print(value_green);
  // lcd.print("      ");

  // value_blue = analogRead(pot_blue);
  // value_blue= map(value_blue, 0, 1023, 0, 255);
  // lcd.setCursor(0,3);
  // lcd.print("Blue: ");
  // lcd.print(value_blue);
  // lcd.print("      ");
}

int displayPotValue(int pot, int column, int row, char* color, Servo servo)
{
     int  value = analogRead(pot);
     value= map(value, 0, 1023, 0, 255);
     lcd.setCursor(column,row);
    lcd.print(color);
    lcd.print(": ");
    lcd.print(value);
    lcd.print("      ");
    int angle = map(value, 0, 255, 0, 180);
    servo.write(angle);
    return value;


}