#include <LiquidCrystal_I2C.h>
#define RED_PIN 2
#define GRE_PIN 3
#define BLU_PIN 4
#define RED_OUT 5
#define GRE_OUT 6
#define BLU_OUT 7

LiquidCrystal_I2C myLCD(0x27,16,2);

int cross; // index setopan 

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  myLCD.init();
  myLCD.begin(16,2);
  myLCD.backlight();
  pinMode(RED_PIN, INPUT_PULLUP);
  pinMode(GRE_PIN, INPUT_PULLUP);
  pinMode(BLU_PIN, INPUT_PULLUP);
  pinMode(RED_OUT, OUTPUT);
  pinMode(GRE_OUT, OUTPUT);
  pinMode(BLU_OUT, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  byte redState = digitalRead(RED_PIN);
  byte greState = digitalRead(GRE_PIN);
  byte bluState = digitalRead(BLU_PIN);
  
  myLCD.clear();

  if (redState==LOW) {
        myLCD.print("RED Button pressed");         
        digitalWrite(GRE_OUT, HIGH);
        digitalWrite(BLU_OUT, HIGH);
  }
  if (greState==LOW) {
        myLCD.print("GREEEN Button pressed");
        digitalWrite(RED_OUT, HIGH);
        digitalWrite(BLU_OUT, HIGH);
  }
  if (bluState==LOW) {
        myLCD.print("BLUE Button pressed");
        digitalWrite(RED_OUT, HIGH);
        digitalWrite(GRE_OUT, HIGH);
  }
  delay (500);
  myLCD.print("No Button pressed");
  digitalWrite(RED_OUT, LOW);
  digitalWrite(GRE_OUT, LOW);
  digitalWrite(BLU_OUT, LOW);
  delay (500);
}

void myLCDprint(String s) {

  
}