Added BME280 sensor (#850)

* Added support for H803FW controller

* Create usermod_bme280.cpp

* Create usermod_bme280.cpp

* Added BME280 sensor

* Update readme.md

* Update usermod_bme280.cpp

usermods/Wemos_D1_mini+Wemos32_mini_shield/readme.md

@@ -1,5 +1,6 @@
 # Wemos D1 mini and Wemos32 mini shield
 -   Installation of file: Copy and replace file in wled00 directory
+-   For BME280 sensor use usermod_bme280.cpp. Copy to wled00 and rename to usermod.cpp
 -   Added third choice of controller Heltec WiFi-Kit-8. Totally DIY but with OLED display.
 ## Project repository
 -   [Original repository](https://github.com/srg74/WLED-wemos-shield) - WLED Wemos shield repository
@@ -17,15 +18,18 @@
 ![Shield](https://github.com/srg74/WLED-wemos-shield/blob/master/resources/Images/Assembly_8.jpg)
 
 ## Functionality checked with
+
 -   Wemos D1 mini original v3.1 and clones
 -   Wemos32 mini
 -   PlatformIO
 -   SSD1306 128x32 I2C OLED display
 -   DS18B20 (temperature sensor)
+-   BME280 (temperature, humidity and pressure sensor)
 -   Push button (N.O. momentary switch)
 
 ### Platformio requirements
-Uncomment `U8g2@~2.27.3`,`DallasTemperature@~3.8.0`,`OneWire@~2.3.5 under` `[common]` section in `platformio.ini`:
+
+For Dallas sensor uncomment `U8g2@~2.27.3`,`DallasTemperature@~3.8.0`,`OneWire@~2.3.5 under` `[common]` section in `platformio.ini`:
 ```ini
 # platformio.ini
 ...
@@ -45,3 +49,23 @@ lib_deps_external =
   OneWire@~2.3.5
 ...
 ```
+
+For BME280 sensor uncomment `U8g2@~2.27.3`,`BME280@~3.0.0 under` `[common]` section in `platformio.ini`:
+```ini
+# platformio.ini
+...
+[platformio]
+...
+; default_envs = esp07
+default_envs = d1_mini
+...
+[common]
+...
+lib_deps_external =
+  ...
+  #For use SSD1306 OLED display uncomment following
+  U8g2@~2.27.3
+  #For BME280 sensor uncomment following
+  BME280@~3.0.0
+...
+```