Modems

I found OpenModem and wanted to get one to play around with it, but they’re not being sold anymore.

MicroModem

MicroModem is the predecessor to OpenModem. Links on the website are partially broken, so I tried to figure some things out. This seems like a good thing to start with because you could build an Arduino shield or something similar quite simply.

• QuickStart Guide

Two versions

There seem to be two versions of MicroModem out there. None are actually OSHW, despite saying otherwise in the documentation

• v1 is a shield for the MicroDuino and sort of crowded. It’s running on 5V.
  
  • Design Files
  • Schematic PDF
• v2 is a dedicated PCB, running on 3.3V
  
  • Schematic (probably)

It would be great to update the original page for this: GitHub Source

OpenModem

OpenModem is the more powerfull followup to MicroModem, with similar documentation/”open source” shortcomings.

• GitHub Repo
• Fork with KiCad