@optech Happy to know that the intial phase is over. So, what is next? https://github.com/OnionIoT/omega2-lmic-lorawan -interfacing to Omega2 through SPI-I2C bridge,library supports SX1276/8) https://www.seeedstudio.com/LoRa-E5-Wireless-Module-p-4745.html -Cortex-M4+SX126X(ST Micro), Comes with factory loaded AT command fw, supports ClassA/B/C, has built-in UART/ADC/I2C/GPIO.. & programmamable using ST CubeMX) Or any other? Curious to know which is your pick.. (I was not aware of that this chirpy thing existed .. !!) Thanks