// Proram 2 sw dan 1 led
// ----------------------
// Nama : 
// Kelas :
// Tanggal : 

#include <LiquidCrystal_I2C.h>

#define I2C_ADDR    0x27
#define LCD_COLUMNS 16
#define LCD_LINES   2

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

int ledPin =  7;      // the number of the LED pin
int swon =  2; 
int swoff =  3; 

void setup() {
  lcd.init();
  lcd.backlight();  
  Serial.begin(115200);
  Serial.println("Program LCD-LED-Button-Serial");
  Serial.println("Programmer : Nama....");
  Serial.println("Date : 23/07/2024 ");
  Serial.println("-----------------------------");
  lcd.setCursor(0, 0);   lcd.print(" LCD - 2 Button ");
  lcd.setCursor(0, 1);   lcd.print("Red and Green SW"); 
  delay(2000);
  lcd.setCursor(0, 0);   lcd.print("Tekan Sw1 : On  ");
  lcd.setCursor(0, 1);   lcd.print("Tekan Sw2 : Off "); 
  pinMode(ledPin, OUTPUT);
  pinMode(swon, INPUT_PULLUP);
  pinMode(swoff, INPUT_PULLUP);
}

void loop() {
  int buttonstateon = digitalRead(swon);
  int buttonstateoff = digitalRead(swoff);

  if(buttonstateon == LOW) {
    digitalWrite(ledPin, HIGH);  // LED Nyala
    lcd.setCursor(0, 0);   lcd.print(" Status : NYALA ");
    lcd.setCursor(0, 1);   lcd.print(" ************** ");     
    Serial.println("LED Nyala");
    delay(1000);
  } 
  
  if (buttonstateoff == LOW)  {
    digitalWrite(ledPin, LOW);   // Led Padam
    lcd.setCursor(0, 0);   lcd.print(" Status : PADAM ");
    lcd.setCursor(0, 1);   lcd.print(" -------------- ");     
    Serial.println("LED Padam");
    delay(1000);
  }

}