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BME 280 SD card

Filthy Finch answered on January 8, 2023 Popularity 1/10 Helpfulness 1/10

answer BME 280 SD card

BME 280 SD card

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#include "SD.h"
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>

#define SEALEVELPRESSURE_HPA (1013.25)
Adafruit_BME280 bme; 

File myFile;
String Temperature, Pressure, Altitude, Humidity, Data;

void setup() {
  Serial.begin(115200);
  delay(2000);
  
  bool status;
  status = bme.begin(0x76);  
  if (!status) {
    Serial.println("BME280 not connected properly. Check circuit!");
    while (1); 
  }
  Serial.print("Initializing SD card...");
  if (!SD.begin(10)) {
    Serial.println("initialization failed!");
    while (1);
  }
  Serial.println("initialization done.");
  myFile = SD.open("data.txt", FILE_WRITE);
  if (myFile) {
    myFile.println( "Temperature(°C), Pressure(hPa), Altitude(m), Humidity(%) \r\n");
    myFile.close();
  } 
  else {
    Serial.println("error opening data.txt");
  }
}


void loop() { 
  data_logging();                                                 
  delay(20000); 
}

void data_logging() {
  String Temperature = String(bme.readTemperature(), 2);
  String Pressure = String(bme.readPressure()/ 100.0F, 2);
  String Altitude = String(bme.readAltitude(SEALEVELPRESSURE_HPA), 2);
  String Humidity = String(bme.readHumidity(), 2);
  
  Data = Temperature + "," + Pressure + "," + Altitude + "," + Humidity ;
  Serial.print("Save data: ");
  Serial.println(Data);

  myFile = SD.open("data.txt", FILE_WRITE);
  if (myFile) {
    Serial.print("Writing to data.txt...");
    myFile.println(Data);
    myFile.close();
    Serial.println("done.");
  } else {
    Serial.println("error opening data.txt");
  }  
  Serial.println();
}

Popularity 1/10 Helpfulness 1/10 Language whatever

Source: microcontrollerslab.com

Tags: sd-card whatever

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Contributed on Jan 08 2023

Filthy Finch

0 Answers Avg Quality 2/10

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