int potensio = A5;
int lampu = 4;
void setup() {
  // put your setup code here, to run once:
 pinMode(potensio, INPUT);
 pinMode(lampu, OUTPUT);
 Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
 int hasil = analogRead(A5);
 float rumus1 = 10230/1023;
 float rumus2 = hasil*rumus1;

if (rumus2 < 5115)
{
 digitalWrite(lampu,HIGH);
 delay(rumus2);
}
 else
{
 digitalWrite(lampu, LOW);
 delay(rumus2);
}

 Serial.println(hasil);
}