Better serial debug

- Improved (debug) logging to serial output
- BME sends -127°C (link DS18x) if no sensor was found

README.md

@@ -15,6 +15,7 @@
 A LoRaWAN sensor node for The Things Network, based on an ATMEGA328P (Arduino Pro Mini) and RFM95W/SX1276 LoRa transiver module. 
 
 ![PCB Front Assembled](.github/pcb_front_assembled.png)
+![PCB Front Assembled](.github/pcb_real.jpg)
 
 The module can be used:
 - Collect various climate values with environmental sensors. See [Environmental (Weather/Clima) Sensor](#environmental-weatherclima-sensor).
@@ -81,8 +82,15 @@ Example:
 avrdude -F -v -c arduino -p atmega328p -P COM4 -b 57600 -D -U flash:w:firmware_1.0_config.hex:i
 ```
 
+## BOM
+- TBD :warning:
+
 ## Firmware Changelog
 
+### Version 2.1
+- Improved (debug) logging to serial output
+- BME sends -127°C (link DS18x) if no sensor was found
+
 ### Version 2.0
 - Added wake up trough interrupt pins
 - Added option for disable interrupt pins

platformio.ini

@@ -31,22 +31,22 @@ build_flags =
     -D USE_IDEETRON_AES
     -D MIC_ENABLE_arbitrary_clock_error
     -D VERSION_MAJOR=2
-    -D VERSION_MINOR=0
+    -D VERSION_MINOR=1
 
 [env:config]
 build_flags   = 
     ${env.build_flags}
-    -D DEBUG_PRINT
-    -D CONFIG
+    -D LOG_DEBUG
+    -D CONFIG_MODE
     -D SERIAL_RX_BUFFER_SIZE=256
 
-[env:release]
+[env:debug]
 build_flags   = 
     ${env.build_flags}
+    -D LOG_DEBUG
     -D SERIAL_RX_BUFFER_SIZE=0
 
-[env:debug]
+[env:release]
 build_flags   = 
     ${env.build_flags}
-    -D DEBUG_PRINT
-    -D SERIAL_RX_BUFFER_SIZE=0
+    -D SERIAL_RX_BUFFER_SIZE=0