Svenska ElektronikForumet

Kod: Markera allt

Humidity: Reading basic values from BME280
Humidity: 26.32 Pressure: 963.71 Temp: 18.73
Humidity: 91.33 Pressure: 648.42 Temp: 22.08
Humidity: 91.71 Pressure: 651.90 Temp: 22.08
Humidity: 91.71 Pressure: 651.90 Temp: 22.08
Humidity: 91.71 Pressure: 651.90 Temp: 22.08
Humidity: 91.71 Pressure: 651.90 Temp: 22.08
Humidity: 91.71 Pressure: 651.90 Temp: 22.08

Kod: Markera allt

#include <Wire.h>

#include "SparkFunBME280.h"
BME280 mySensor;
#define POWERPIN 2

void setup()
{
  Serial.begin(9600);
  Serial.println("Reading basic values from BME280");
  
  pinMode(POWERPIN, OUTPUT);
  digitalWrite(POWERPIN, HIGH);
  delay(10);
  
  Wire.begin();
  Wire.setClock(100000);

  mySensor.setI2CAddress(0x76);
  if (mySensor.beginI2C() == false) //Begin communication over I2C
  {
    Serial.println("The sensor did not respond. Please check wiring.");
    while(1); //Freeze
  }
  mySensor.setTempOverSample(16); //0 to 16 are valid. 0 disables temp sensing. See table 24.
  mySensor.setPressureOverSample(16); //0 to 16 are valid. 0 disables pressure sensing. See table 23.
  mySensor.setHumidityOverSample(16); //0 to 16 are valid. 0 disables humidity sensing. See table 19.
  mySensor.setMode(MODE_FORCED); //MODE_SLEEP, MODE_FORCED, MODE_NORMAL is valid. See 3.3
}

void loop()
{
  digitalWrite(POWERPIN, HIGH);
  delay(10);
  mySensor.reset();
  mySensor.begin();
  delay(10);
  
  Serial.print("Humidity: ");
  Serial.print(mySensor.readFloatHumidity(), 2);

  Serial.print(" Pressure: ");
  Serial.print(mySensor.readFloatPressure()/100, 2);

  Serial.print(" Temp: ");
  Serial.print(mySensor.readTempC(), 2);
  Serial.println();

  digitalWrite(POWERPIN, LOW);
  
  delay(10000);
}