#include <Wire.h>
#include <Adafruit_SH1107.h>
#include <Adafruit_BME280.h>

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 128

// BME280 I2C address is 0x76(108)
#define Addr 0x76
Adafruit_BME280 bme;

// OLED Display Configuration
Adafruit_SH1106 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

void setup()
{
  // Initialize I2C communication as MASTER
  Wire.begin();

  // Initialize Serial communication, set baud rate = 9600
  Serial.begin(9600);

  // Initialize the OLED display
  if (!display.begin(SSD1306_I2C_ADDRESS, SCREEN_WIDTH, SCREEN_HEIGHT))
  {
    Serial.println(F("SH1106 allocation failed"));
    for (;;);
  }
  display.display(); // Initialize with the buffer cleared
  display.setTextSize(1);
  display.setTextColor(SSD1306_WHITE);

  // Initialize the BME280 sensor
  if (!bme.begin(Addr))
  {
    Serial.println("Could not find a valid BME280 sensor, check wiring!");
    while (1);
  }
}

void loop()
{
  // Read sensor data
  float cTemp = bme.readTemperature();
  float fTemp = cTemp * 1.8 + 32;
  float pressure = bme.readPressure() / 100.0F; // Convert pressure to hPa
  float humidity = bme.readHumidity();
  
  // Clear the OLED display
  display.clearDisplay();
  
  // Display data on the OLED
  display.setCursor(0, 0);
  display.print("Temp: ");
  display.print(cTemp, 2);
  display.println(" C");
  display.print(fTemp, 2);
  display.println(" F");
  display.print("Pressure: ");
  display.print(pressure, 2);
  display.println(" hPa");
  display.print("Humidity: ");
  display.print(humidity, 2);
  display.println(" %");
  
  // Display on OLED
  display.display();
  
  // Output data to serial monitor
  Serial.print("Temperature in Celsius : ");
  Serial.print(cTemp);
  Serial.println(" C");
  Serial.print("Temperature in Fahrenheit : ");
  Serial.print(fTemp);
  Serial.println(" F");
  Serial.print("Pressure : ");
  Serial.print(pressure);
  Serial.println(" hPa");
  Serial.print("Relative Humidity : ");
  Serial.print(humidity);
  Serial.println(" %");
  
  delay(1000);
}