int hitung_mundur;

void setup() {
 pinMode(13, OUTPUT);
 pinMode(12, OUTPUT);
 pinMode(11, OUTPUT);
 pinMode(10, OUTPUT);
 pinMode(9, OUTPUT);
 pinMode(8, OUTPUT);   
 Serial. begin(115200);

}

void loop() {
Channel1();

}

void Channel1 () {
digitalWrite(13, LOW);
digitalWrite(12, LOW);
digitalWrite(11, LOW);
digitalWrite(10, LOW);
digitalWrite(9, LOW);
digitalWrite(8, LOW);
for (int hitung=0; hitung<5; hitung++){
digitalWrite(13, HIGH);
digitalWrite(10, HIGH);
hitung_mundur=5-hitung;
Serial.println(hitung);
delay(1000);
}
for (int hitung=0; hitung<2000; hitung++){
digitalWrite(13, LOW);
digitalWrite(12, HIGH);
digitalWrite(10, HIGH);
delay(1);
}
for (int hitung=0; hitung<2000; hitung++){
digitalWrite(12, LOW);
digitalWrite(11, HIGH);
digitalWrite(10, HIGH);
delay(1);
}
for (int hitung=0; hitung<2000; hitung++){
digitalWrite(12, HIGH);
digitalWrite(11, LOW);
digitalWrite(10, HIGH);
delay(1);
}
for (int hitung=0; hitung<2000; hitung++){
digitalWrite(13, HIGH);
digitalWrite(12, LOW);
digitalWrite(10, HIGH);
delay(1);
}
for (int hitung=0; hitung<2000; hitung++){
digitalWrite(13, HIGH);
digitalWrite(10, HIGH);
digitalWrite(9, LOW);
delay(1);
}
for (int hitung=0; hitung<2000; hitung++){
digitalWrite(13, HIGH);
digitalWrite(10, LOW);
digitalWrite(9, HIGH);
delay(1);
}
for (int hitung=0; hitung<2000; hitung++){
digitalWrite(13, HIGH);
digitalWrite(9, LOW);
digitalWrite(8, HIGH);
delay(1);
}
for (int hitung=0; hitung<2000; hitung++){
digitalWrite(13, HIGH);
digitalWrite(9, HIGH);
digitalWrite(8, LOW);
delay(1);
}

}