UPDATE: Range for wire antenna 17cm 433MHz, LORA mode. Software based on Radiohead (see below) with STM32L151.
Minimum RSSI -84 dB for 450 meters (across building).
UPDATE: Implement standalone datagram server and client from Radiohead 1.46
Support USB-CDC and Serial communication.
Source codes available on github
Simple LORA RF module with RF96W/RF98W (HopeRF) and STM32L151CB.
Configuration via soldering jumpers for USB, standalone or Raspberry PI.
Software from LoRaMac-node