#include <LiquidCrystal_I2C.h>

#define LedMerah  23
#define LedKuning 19
#define LedHijau  18
const int pinPB1 = 13;
const int pinPB2 = 12;
unsigned char StatePB1,StatePB2;
unsigned int Interval = 500;
unsigned long PrevMillis;
LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 20, 4);
unsigned char Counter;
unsigned int  potValue;
void setup() {
  Serial.begin(115200);
  pinMode(LedMerah, OUTPUT);
  pinMode(LedKuning, OUTPUT); 
  pinMode(LedHijau, OUTPUT);
  pinMode(pinPB1, INPUT_PULLUP);
  pinMode(pinPB2, INPUT_PULLUP);
  LCD.init();
  LCD.backlight();

  LCD.setCursor(0, 0);
  LCD.print("Counter: ");
  LCD.setCursor(0, 1);
  LCD.print("Adc= ");
}

void loop() {
  StatePB1 = digitalRead(pinPB1);
  StatePB2 = digitalRead(pinPB2);
  potValue = analogRead(25);
  LCD.setCursor(9,1);
  LCD.print(potValue);
  if (StatePB1 == LOW){
      Serial.println("PB1 di Tekan");
      digitalWrite(LedKuning, HIGH);
      Counter++;
      LCD.setCursor(9,0);
      LCD.print(Counter);
  }
  if (StatePB2 == LOW){
      Serial.println("PB2 di Tekan");
      digitalWrite(LedKuning, LOW);
  }
  //=================================
  unsigned long CurrentMillis = millis();
  if (CurrentMillis - PrevMillis >= Interval) // Interval=500mS
  {   PrevMillis = millis();
      digitalWrite(LedHijau, !digitalRead(LedHijau));
  }
  delay(1);
}