Disabling LoRa by default

config.public.h

@@ -11,8 +11,8 @@
 #  define AMPEL_WIFI    // WiFi, and all other dependent services (MQTT, HTTP, NTP, ...)
 #  define AMPEL_HTTP    // Should HTTP web server be started?
 #  define AMPEL_MQTT    // Should data be sent over MQTT?
-#  define AMPEL_LORAWAN // Should data be sent over LoRaWAN? (Requires ESP32 + LoRa modem)
 #  define AMPEL_CSV     // Should data be logged as CSV, on the ESP flash memory?
+// #  define AMPEL_LORAWAN // Should data be sent over LoRaWAN? (Requires ESP32 + LoRa modem)
 
 /**
  * WIFI
@@ -115,15 +115,20 @@
  * LoRaWAN
  */
 
-// Region and transceiver type should be specified in:
+// 1) Requires "MCCI LoRaWAN LMIC library", which will be automatically used with PlatformIO but should be added in "Arduino IDE".
+// 2) Region and transceiver type should be specified in:
 //     * Arduino/libraries/MCCI_LoRaWAN_LMIC_library/project_config/lmic_project_config.h for Arduino IDE
 //     * platformio.ini for PlatformIO
 //    See https://github.com/mcci-catena/arduino-lmic#configuration for more information
-// It has been tested with "TTGO ESP32 SX1276 LoRa 868" and will only work with an ESP32 + LoRa modem
-// In order to use LoRaWAN, a gateway should be close to the co2ampel, and an account, an application and a device should be registered,
+// 3) It has been tested with "TTGO ESP32 SX1276 LoRa 868" and will only work with an ESP32 + LoRa modem
+// 4) In order to use LoRaWAN, a gateway should be close to the co2ampel, and an account, an application and a device should be registered,
 //      e.g. on https://www.thethingsnetwork.org/docs/applications/
+// 5) The corresponding keys should be defined in LORAWAN_DEVICE_EUI, LORAWAN_APPLICATION_EUI and LORAWAN_APPLICATION_KEY
+
 // How often should measurements be sent over LoRaWAN?
 #  define LORAWAN_SENDING_INTERVAL 300 // [s] This value should not be too low. See https://www.thethingsnetwork.org/docs/lorawan/duty-cycle.html#maximum-duty-cycle
+
+// WARNING: If AMPEL_LORAWAN is enabled, you need to modify the 3 following constants!
 // This EUI must be in little-endian format, so least-significant-byte first.
 // When copying an EUI from ttnctl output, this means to reverse the bytes.
 #  define LORAWAN_DEVICE_EUI      {0x88, 0x77, 0x66, 0x55, 0x44, 0x33, 0x22, 0x11}