Photo_analog_2

//Phototransistor terhubung pada GPIO 36 di board ESPectro32
int photoPin = 36;
float potValue = 0;
float potVoltage = 0;

void setup() {
  Serial.begin(9600);
  delay(500);
}
void loop() {
//Membaca nilai phototransistor
  potValue = analogRead(photoPin);
//mengkonversi nilai raw data (0 - 4095) ke tegangan (0.0V - 3.3V):
  potVoltage = potValue * (3.3 / 4095.0);
  Serial.print("Photo Transistor Value  :");
  Serial.println(potValue);
  Serial.print("Photo Transistor Voltage  :");
  Serial.println(potVoltage);
  delay(500);
}