BME/BMP 280 usermod for WLED

usermod.cpp

#include "wled.h"
#include <Arduino.h>
#include <Wire.h>
#include <BME280I2C.h> //BME280 sensor

void UpdateBME280Data();

#define Celsius // Show temperature mesaurement in Celcius otherwise is in Fahrenheit 
BME280I2C bme;    // Default : forced mode, standby time = 1000 ms
                  // Oversampling = pressure ×1, temperature ×1, humidity ×1, filter off,

#ifdef ARDUINO_ARCH_ESP32 //ESP32 boards
uint8_t SCL_PIN = 22;
uint8_t SDA_PIN = 21;
#else //ESP8266 boards
uint8_t SCL_PIN = 5;
uint8_t SDA_PIN = 4;
// uint8_t RST_PIN = 16; // Uncoment for Heltec WiFi-Kit-8
#endif


// BME280 sensor timer
long tempTimer = millis();
long lastMeasure = 0;

float SensorPressure(NAN);
float SensorTemperature(NAN);
float SensorHumidity(NAN);

void userSetup() {
  Wire.begin(SDA_PIN,SCL_PIN);

while(!bme.begin())
  {
    Serial.println("Could not find BME280I2C sensor!");
    delay(1000);
  }
switch(bme.chipModel())
  {
    case BME280::ChipModel_BME280:
      Serial.println("Found BME280 sensor! Success.");
      break;
    case BME280::ChipModel_BMP280:
      Serial.println("Found BMP280 sensor! No Humidity available.");
      break;
    default:
      Serial.println("Found UNKNOWN sensor! Error!");
  }
}

// gets called every time WiFi is (re-)connected. Initialize own network
// interfaces here
void userConnected() {}

void userLoop() {

// BME280 sensor MQTT publishing
  tempTimer = millis();  
// Timer to publish new sensor data every 60 seconds
  if (tempTimer - lastMeasure > 60000) 
  {
    lastMeasure = tempTimer;    

// Check if MQTT Connected, otherwise it will crash the 8266
    if (mqtt != nullptr)
    {
      UpdateBME280Data();
      float board_temperature = SensorTemperature;
      float board_pressure = SensorPressure;
      float board_humidity = SensorHumidity;

// Create string populated with user defined device topic from the UI, and the read temperature, humidity and pressure. Then publish to MQTT server.
      String t = String(mqttDeviceTopic);
      t += "/temperature";
      mqtt->publish(t.c_str(), 0, true, String(board_temperature).c_str());
      String p = String(mqttDeviceTopic);
      p += "/pressure";
      mqtt->publish(p.c_str(), 0, true, String(board_pressure).c_str());
      String h = String(mqttDeviceTopic);
      h += "/humidity";
      mqtt->publish(h.c_str(), 0, true, String(board_humidity).c_str());
    }
  }
}

void UpdateBME280Data() {
  float temp(NAN), hum(NAN), pres(NAN);
#ifdef Celsius
  BME280::TempUnit tempUnit(BME280::TempUnit_Celsius);
#else
  BME280::TempUnit tempUnit(BME280::TempUnit_Fahrenheit);
#endif
  BME280::PresUnit presUnit(BME280::PresUnit_Pa);
  bme.read(pres, temp, hum, tempUnit, presUnit);
  SensorTemperature=temp;
  SensorHumidity=hum;
  SensorPressure=pres;
}