Mostly one layered project (except one wire) with Arduino pro mini 3v3 board and LoRa RA-2 module. Soldering the shorter header 1x6 strongly optional, in that case you have to solder the LoRa 3v3 pin to Arduino regulated 3v3 VCC.
PCB V1.1 has no 1x6 header.
**Be careful** with the PCB, because the LoRa module has been flipped and the nets do not renamed. It is ideal for home etching with (not?)...
Solution to create home network via nrf24 and arduino.
Plus LEDcontrol, DHT11(temperature sensor), IR control, button control, IR motion Sensor.