#include <Wire.h>

// NTC sensor analog pin
int sensorPin = A0;

// Create the display object, no need for external libraries
SSD1306 display(128, 64, &Wire);  // 128x64 OLED display

void setup() {
  // Initialize the OLED display (this part is built into Wokwi)
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);  // Use default I2C address (0x3C)
  display.clearDisplay();
  display.setTextSize(1);  
  display.setTextColor(SSD1306_WHITE);
  display.setCursor(0, 0);

  // Set up serial communication
  Serial.begin(9600);
}

void loop() {
  // Read the analog value from the NTC sensor
  int sensorValue = analogRead(sensorPin);
  
  // Convert the sensor value to a temperature in Celsius
  float voltage = sensorValue * (5.0 / 1023.0);  // Convert the analog reading to voltage
  float temperature = (1 / (log(1 / (5.0 / voltage - 1)) / 3900 + 1 / 298.15)) - 273.15;

  // Clear the OLED and display the temperature
  display.clearDisplay();
  display.setCursor(0, 0);
  display.print("Temperature: ");
  display.print(temperature);
  display.print(" C");
  display.display();  // Update the display

  // Delay before taking another reading
  delay(1000);
}