Fix up BME280_v2 usermod

Minor compile correctness tweak

usermods/BME280_v2/BME280_v2.cpp

@@ -239,7 +239,7 @@ public:
         // from the UI and values read from sensor, then publish to broker
         if (temperature != lastTemperature || PublishAlways)
         {
-          publishMqtt("temperature", String(temperature, TemperatureDecimals).c_str());
+          publishMqtt("temperature", String(temperature, (unsigned) TemperatureDecimals).c_str());
         }
 
         lastTemperature = temperature; // Update last sensor temperature for next loop
@@ -252,17 +252,17 @@ public:
 
           if (humidity != lastHumidity || PublishAlways)
           {
-            publishMqtt("humidity", String(humidity, HumidityDecimals).c_str());
+            publishMqtt("humidity", String(humidity, (unsigned) HumidityDecimals).c_str());
           }
 
           if (heatIndex != lastHeatIndex || PublishAlways)
           {
-            publishMqtt("heat_index", String(heatIndex, TemperatureDecimals).c_str());
+            publishMqtt("heat_index", String(heatIndex, (unsigned) TemperatureDecimals).c_str());
           }
 
           if (dewPoint != lastDewPoint || PublishAlways)
           {
-            publishMqtt("dew_point", String(dewPoint, TemperatureDecimals).c_str());
+            publishMqtt("dew_point", String(dewPoint, (unsigned) TemperatureDecimals).c_str());
           }
 
           lastHumidity = humidity;
@@ -279,7 +279,7 @@ public:
 
         if (pressure != lastPressure || PublishAlways)
         {
-          publishMqtt("pressure", String(pressure, PressureDecimals).c_str());
+          publishMqtt("pressure", String(pressure, (unsigned) PressureDecimals).c_str());
         }
 
         lastPressure = pressure;

usermods/BME280_v2/README.md

@@ -22,7 +22,6 @@ Dependencies
 - Libraries
   - `BME280@~3.0.0` (by [finitespace](https://github.com/finitespace/BME280))
   - `Wire`
-  - These must be added under `lib_deps` in your `platform.ini` (or `platform_override.ini`).
 - Data is published over MQTT - make sure you've enabled the MQTT sync interface.
 - This usermod also writes to serial (GPIO1 on ESP8266). Please make sure nothing else is listening to the serial TX pin or your board will get confused by log messages!
 
@@ -40,17 +39,11 @@ Methods also exist to read the read/calculated values from other WLED modules th
 
 # Compiling
 
-To enable, compile with `USERMOD_BME280` defined  (e.g. in `platformio_override.ini`)
+To enable, add `BME280_v2` to your `custom_usermods`  (e.g. in `platformio_override.ini`)
 ```ini
 [env:usermod_bme280_d1_mini]
 extends = env:d1_mini
-build_flags =
-  ${common.build_flags_esp8266}
-  -D USERMOD_BME280
-lib_deps = 
-  ${esp8266.lib_deps}
-  BME280@~3.0.0
-  Wire
+custom_usermods = ${env:d1_mini.custom_usermods} BME280_v2
 ```