*Original reference from the LMCI library:
https://github.com/matthijskooijman/arduino-lmic
*Original reference of the edition of the libraries:
http://wiki.dragino.com/index.php?title=Use_the_LMIC_with_915MHZ_Dragino_Lora_boards
Test performed using NodeMCU-32S ESP32 connected to the Lora1276 (NiceRF).
Note: Libraries already edited !!!
http://www.nicerf.com/productslist_180.html
The 915 MHz ISM Band SHALL be divided into the following channel plans. Upstream – 64 channels numbered 0 to 63 utilizing LoRa 125 kHz BW varying from DR0 to DR3, using coding rate 4/5, starting at 902.3 MHz and incrementing linearly by 200 kHz to 914.9 MHz Upstream – 8 channels numbered 64 to 71 utilizing LoRa 500 kHz BW at DR4 starting at 903.0 MHz and incrementing linearly by 1.6 MHz to 914.2 MHz Downstream – 8 channels numbered 0 to 7 utilizing LoRa 500 kHz BW at DR8 to DR13, starting at 923.3 MHz and incrementing linearly by 600 kHz to 927.5 MHz
https://lora-alliance.org/resource-hub/lorawantm-regional-parameters-v11rb