I have decided to build a SuperSpot from scratch by downloading the source and compiling the code and putting it in a box with a MMDVM board for each mode I plan to use. The build process started about 3 week prior to the holiday my XYL and I took in Lanzarote, Canary Islands, Spain. Thinking that I needed a hotspot that I could use a variety of radio’s at the same time and not have to wait for the last mode used to time out before I could used a different mode.

Discussions with Andy MW0MWZ consisted of what to use, how to connect, how to power/charge, how to get internet into the box and finally which modes to include. What we finally settled on was a hotspot that has 1 Raspberry Pi, hopefully a Raspberry Pi Zero W would handle the work load with a second choice being a Raspberry Pi 2. The plan being to connect 3 or 4 MMDVM board and the same number of  2.4″ Nextion Screens or 2.8″ Nextion Screen to monitor what is happening on the hotspot. There isn’t a need for a dashboard as the user doesn’t see a dashboard when using a repeater, so the thought was no need to add a dashboard on the SuperSpot.

Work commenced on the SuperSpot build by setting up the software side and the only MMDVM board I had with me. This was a HS_DUAL_HAT and was setup for DMR with a temporary addition of POCSAG which will either move to its own MMDVM board or piggyback off the D-Star board.

Additional MMDVM boards were ordered to be delivered to my home QTH along with a couple of USB to TLL converters via Amazon for connecting to the Nextion Screens. The only other item(s) to be ordered will be the Nextion Screens which will have to wait until next months pay.

So let get on with the build. We will start with Part1 – MMDVMHost Software


Part 1
MMDVMHost Software
Part 2
Additional Hardware
Part 3
Nextion Screens
Part 4
Powering Everything