Reference
1.
A Technical overview of LoRa and LoRaWAN -
https://docs.wixstatic.com/ugd/eccc1a_ed71ea1cd969417493c74e4a13c55685.pdf
2.
LoRaWAN Security -
https://docs.wixstatic.com/ugd/eccc1a_cc44304714c14f80a6ce50fcf9fcee2a.pdf
3.
Microchip RN2483 LoRa Technology Transceiver Module -
http://ww1.microchip.com/downloads/en/DeviceDoc/50002346C.pdf
4.
Microchip RN2483 LoRa Technology Mote -
http://www.microchip.com/DevelopmentTools/ProductDetails.aspx?PartNO=DM164138
5.
Microchip LoRa Technology Evaluation Kit -
http://www.microchip.com/DevelopmentTools/ProductDetails.aspx?PartNO=DV164140-1
6.
AVR1010: Minimizing the Power Consumption of Atmel AVR XMEGA Devices -
http://ww1.microchip.com/downloads/en/AppNotes/doc8267.pdf