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Build Log: MMDVM
Introduction
This wasn't much of a build but I did have to heat up the iron for it so it might as well get a log entry. This is an MMDVM (multi-mod digital voice modem) hat for a Raspberry Pi SBC (single board computer). The purpose of this device is to enable digital radio communication through the internet. It's something I've been wanting for a while now as getting distant contacts on UHF/VHF is pretty close to impossible in my area.
Step 1: Inventory
This "kit" only had two parts which required soldering in my usecase. The two brass antenna ports arrived with the main PCB anlong with some headers for attaching the hat to a Rasberry Pi Zero. As I am using a Rasperry Pi 3B+ for this project, those will have a new home in my parts bin.
Step 2: Putting It All Together
one the antenna ports were soldered on all that was left to do was to screw on the included antennas (aren't they cute?) and attach the board to the Pi using the built in GPIO headers.
Conclusion
All said and done I think this took about 3 minutes. Not the most impressive or complex build in the world but I had fun all the same. I will follow up with a second post about flashing the Hotspot with a new OS and getting everything programed. Once that's complete I should be able to begin making global conacts over "radio"!
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