#define LED_hijau 13
#define LED_biru 12
#define LED_merah 11
#define tombol 7
int status = 0;
void setup() {
pinMode(LED_hijau, OUTPUT);
pinMode(tombol, INPUT);
pinMode(LED_biru, OUTPUT);
pinMode(LED_merah, OUTPUT);
Serial.begin(9600);
}
void loop() {
int buttonState = digitalRead(tombol);
if (buttonState == HIGH) {
status = (status % 3) + 1; // Mengubah status dari 1 ke 2 ke 3 ke 1
delay(500); // Debouncing (opsional)
}
// Matikan semua LED
digitalWrite(LED_hijau, LOW);
digitalWrite(LED_biru, LOW);
digitalWrite(LED_merah, LOW);
// Nyalakan LED yang sesuai berdasarkan tekanan tombol
if (status == 1) {
digitalWrite(LED_hijau, HIGH);
} else if (status == 2) {
digitalWrite(LED_biru, HIGH);
} else if (status == 3) {
digitalWrite(LED_merah, HIGH);
}
Serial.println(status);
}