// MADE BY CAKRAYP :)
// Switch ON/OFF dengan sekali tekan tombol.

#define BtnPin A0   // Tombol yang dijadikan sebagai Sakelar
#define Led_Pin 13  // LED Power ON/OFF

int OldValue = LOW;
int timeOneClick = LOW;
int SwitchPower = LOW;

// Main
void setup() {
  Serial.begin(115200);
  Serial.println("<Arduino UNO is ready>");
  Serial.println("Press the blue button to (ON/OFF).");

  // initialize button
  pinMode(BtnPin, INPUT);

  // LED
  pinMode(Led_Pin, OUTPUT);
}

void loop() {
  int NewValue = digitalRead(BtnPin);   // Membaca tombol dari Pin A0

  // HIGH = 1
  // LOW  = 0

  // When user has been clicked the button.
  if (NewValue != OldValue) {
    timeOneClick = timeOneClick + NewValue;

    // Switch Posision (Posisi Saklar)
    if (NewValue == HIGH && timeOneClick == 1 && SwitchPower == LOW) {
      // Posisi ON
      Serial.print("[BTN]: ");
      Serial.println("Button switch ON");
      digitalWrite(Led_Pin, HIGH);
      SwitchPower = HIGH;
    } else if (timeOneClick >= 2 && SwitchPower == HIGH) {
      // Posisi OFF
      Serial.print("[BTN]: ");
      Serial.println("Button switch OFF");
      digitalWrite(Led_Pin, LOW);
      SwitchPower = LOW;
      timeOneClick = LOW;
    }

    OldValue = NewValue;
  }

  // When the switch ON, you can put here...
  // if (SwitchPower == HIGH) {
  //   Serial.println("Hopee");
  // }

  delay(100);
}