ESPectro32_OLED

#include <Wire.h>
#include "SSD1306.h"

SSD1306 display(0x3c, 21, 22);

int photoPin = 36;
float potValue = 0;
float potVoltage = 0;

void setup() {
  display.init();
}
void loop() {
  display.clear();
  //Membaca Nilai Phototransistor
  potValue = analogRead(photoPin);
  // mengkonversi nilai raw data (0 - 4095) ke tegangan (0.0V - 3.3V):
  potVoltage = potValue * (3.3 / 4095.0);
  display.drawString(0, 0, "Pot Value :  " + String(potValue));
  display.drawString(0, 20, "Pot Voltage :  " + String(potVoltage));
  display.display();
  delay(1000);
}