arduino GY-BMP280-3.3 高精度大气压强模块 高度计传感器

 

/*GY-BMP 280        Arduino UNO
VCC       3.3v
GND       gnd
SCL       13
SDA       11
CSB       10
SDO       12
*/


#include <Wire.h>
#include <SPI.h>
#include <Adafruit_BMP280.h>

#include <U8glib.h>

//#define BMP_SCK  (13)
//#define BMP_MISO (12)
//#define BMP_MOSI (11)
#define BMP_CS   (10)


U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_NONE);


//Adafruit_BMP280 bmp; // I2C
Adafruit_BMP280 bmp(BMP_CS); // hardware SPI
//Adafruit_BMP280 bmp(BMP_CS, BMP_MOSI, BMP_MISO,  BMP_SCK);

void setup() {
  Serial.begin(9600);
  Serial.println(F("BMP280 test"));

  if (!bmp.begin()) {
    Serial.println(F("Could not find a valid BMP280 sensor, check wiring!"));
    while (1);
  }
   
  /* Default settings from datasheet. */
  bmp.setSampling(Adafruit_BMP280::MODE_NORMAL,     /* Operating Mode. */
                  Adafruit_BMP280::SAMPLING_X2,     /* Temp. oversampling */
                  Adafruit_BMP280::SAMPLING_X16,    /* Pressure oversampling */
                  Adafruit_BMP280::FILTER_X16,      /* Filtering. */
                  Adafruit_BMP280::STANDBY_MS_500); /* Standby time. */

              
}


void draw(void) {

    u8g.setFont(u8g_font_8x13); 
  // 温度
  u8g.setPrintPos(0, 10); 
  u8g.print("Tem: ");
  u8g.setPrintPos(32, 10); 
  u8g.print(bmp.readTemperature());
  // 气压
  u8g.setPrintPos(0, 30); 
  u8g.print("Pre: ");
  u8g.setPrintPos(32, 30); 
  u8g.print(bmp.readPressure());
  // 海拔
  u8g.setPrintPos(0, 50); 
  u8g.print("Alt: ");
  u8g.setPrintPos(32, 50); 
  u8g.print(bmp.readAltitude(1013.25));
  
  
}

void loop() {
    Serial.print(F("Temperature = "));
    Serial.print(bmp.readTemperature());
    Serial.println(" *C");

    Serial.print(F("Pressure = "));
    Serial.print(bmp.readPressure());
    Serial.println(" Pa");

    Serial.print(F("Approx altitude = "));
    Serial.print(bmp.readAltitude(1013.25)); /* Adjusted to local forecast! */
    Serial.println(" m");

    Serial.println();
    delay(2000);
  u8g.firstPage(); 
  do {
    draw();
  } while( u8g.nextPage() );

  delay(200); 
}