that's an 'arduino prototype board with power supply and a very small footprint arduino 'mega, I like it.
- http://www.ebay.com/itm/Double-Side-Prototype-PCB-Breadboard-DIY-4-096V-Reference-Mega-mini-2560-UC-2102-/221938421710?hash=item33ac8f8fce:g:oicAAOSw5ZBWQ1F1
just playing and learning to make a fancy (nextion) touch screen menu
which will be the main user interface for the LoRa node simulator (under construction)
( and because I have only one RN2483 it must be 'pluggable' between boards 
)
( The 3D 3.2 nextion display bezel is printed by www.bubblebit.nl , tnx Merijn ! )