#include "Wire.h"
#include "LiquidCrystal_I2C.h"
#include "BMP280_DEV.h"

#define I2C_addr 0x27  // Ensure this is correct using an I2C scanner
#define LCD_COL 16
#define LCD_ROWS 2

#define BMP_CS  PA4  // Chip Select for BMP280
#define BMP_SCK PA5  // SPI Clock
#define BMP_MISO PA6 // SPI MISO
#define BMP_MOSI PA7
BMP280_DEV bmp280(BMP_CS);   
LiquidCrystal_I2C lcd(I2C_addr, LCD_COL, LCD_ROWS);

void setup() {
  Serial.begin(115200);
  Wire.begin();
  Serial.println("Hello, STM32!");
  bmp280.begin();           
    if (!bmp280.begin()) {
        Serial.println("BMP280 initialization failed!");
        while (1);
    } else {
        Serial.println("BMP280 initialized successfully!");
    }                      // Default initialisation, place the BMP280 into SLEEP_MODE 
  bmp280.setTimeStandby(TIME_STANDBY_2000MS);     // Set the standby time to 2 seconds
  bmp280.startNormalConversion();
  
}

void loop() {
  lcd.clear(); // Clear screen before updating
  bmp280.setPresOversampling(OVERSAMPLING_X4);  // Pressure oversampling
  bmp280.setTempOversampling(OVERSAMPLING_X2);  // Temperature oversampling
  bmp280.setTimeStandby(TIME_STANDBY_1000MS);
  float temp;
  digitalWrite(BMP_CS, LOW);
  bmp280.getTemperature(temp);
  Serial.print(temp);
  Serial.print("\n");
  lcd.setCursor(0, 0);
  lcd.print("Hello, STM32!");
  digitalWrite(BMP_CS, HIGH);
  lcd.setCursor(0, 1);
  lcd.print("Welcome to Wokwi!");

  delay(2000);  // Delay for better readability
}