BMP280 with ESP32 on I2C

BMP280 with ESP32 on I2C

參考來源 https://www.circuitschools.com/interfacing-bmp280-with-esp-32-on-i2c-with-errors-and-solutions/

參考來源 https://simple-circuit.com/arduino-bmp280-sensor-lcd/

/*

 * Interfacing Arduino with BMP280 temperature and pressure sensor.

 * Temperature and pressure values are displayed on 16x2 LCD.

 * This is a free software with NO WARRANTY.

 * https://simple-circuit.com/

 */

 

#include <Wire.h>             // include Wire library, required for I2C devices

#include <Adafruit_Sensor.h>  // include Adafruit sensor library

#include <Adafruit_BMP280.h>  // include adafruit library for BMP280 sensor

 

// define device I2C address: 0x76 or 0x77 (0x77 is library default address)

#define BMP280_I2C_ADDRESS  0x76

 

Adafruit_BMP280 bmp280;

 

 

void setup() {

  Serial.begin(115200);

  

  Serial.println(F("Arduino + BMP280"));

  

  if (!bmp280.begin(BMP280_I2C_ADDRESS))

  {  

    Serial.println("Could not find a valid BMP280 sensor, check wiring!");

    while (1);

  }

}

 

 

// main loop

void loop()

{

  // get temperature, pressure and altitude from library

  float temperature = bmp280.readTemperature();  // get temperature

  float pressure    = bmp280.readPressure();     // get pressure

  float altitude_   = bmp280.readAltitude(1013.25); // get altitude (this should be adjusted to your local forecast)

 

  // print data on the serial monitor software

  // 1: print temperature

  Serial.print("Temperature CELSIUS 攝氏溫度= ");

  Serial.print(temperature);

  Serial.println(" °C");

  

  float TempF = (temperature*1.8)+32;

  Serial.print("Temperature FAHRENHEIT 華氏溫度= ");

  Serial.print(TempF);

  Serial.println(" °F");

  

  // 2: print pressure

  Serial.print("Pressure 大氣壓力百帕(hPa)= ");

  Serial.print(pressure/100);

  Serial.println(" hPa");

  // 3: print altitude

  Serial.print("Approx Altitude 大概海拔高度= ");

  Serial.print(altitude_);

  Serial.println(" m");

    

  Serial.println();  // start a new line

  delay(2000);       // wait 2 seconds

  

}

// end of code.