LPWAN

Chris writes

AX25, RadioHead compiled under Atmel studio 7; I stripped out both the 'GPS' in the AX25 dir,

and everything in RadioHead but the 'RHSerial' driver ...

now, gotta ponder how best to bolt up the init() and loop() functions in AX25.cpp with that Serial driver... and utilities to store one's call sign, etc in EEPROM, etc ..

also, this is kinda interesting... http://forum.arduino.cc/index.php?topic=240624.0

came across this too... getting the whole Bertos code to compile is a pain... http://slepp.ca/projects/ax25-modem/

The RadioHead stuff does indeed just drop into an Arduino sketch, and looks very active from their mailing list ...

speaking of NiceRF, this look extremely interesting too (!) and all "spelled out" on Arduino .. that would eliminate all A/D and codec, although it wouldn't have 5W of power from a handset... but a whole lot cheaper!

http://www.absolutelyautomation.com/sites/default/files/151230_INTERNET_OF_THINGS_%28IOT%29_USING_NICERF_LORA1276.pdf

http://nicerf.com/product_view.aspx?id=99

http://www.semtech.com/wireless-rf/rf-transceivers/sx1276/

supposedly this library works on it too: http://www.airspayce.com/mikem/arduino/RadioHead/

"..RH_RF95 Works with Semtech SX1276/77/78/79, Modtronix inAir4 and inAir9, and HopeRF RFM95/96/97/98 and other similar LoRa capable radios. Supports Long Range (LoRa) with spread spectrum frequency hopping, large payloads etc"

Going to try to download, compile Radiohead now...

Development tools

Atmel Studio 7

Arduino ecosystem

http://docs.platformio.org/en/latest/

Hardware options

http://wiki.dragino.com/index.php?title=Lora_Shield saw it here http://www.instructables.com/id/Use-Lora-Shield-and-RPi-to-Build-a-LoRaWAN-Gateway/