Enron Hubbard☎️ #Shellphone update: here’s the fully assembled prototype shell with #Pinephone for scale. Still need to spend some quality time soldering the innards, but this is the rough idea I’m going for.
☎️ Once this is all soldered for proof of concept, the next processing board will be using a Radxa Zero with a much better camera. Further boards are planned to be custom PCBs using a SOPINE compute module and mPCIe LTE modem, further reducing the footprint and making the whole design more modular.
☎️ #Shellphone: rethought the front panel and wound up removing all of the original switches, going for something with a splash of color.
The button matrix is wired up with diodes (mostly) to prevent ghosting on the keypad, and the screen is wired for SPI since I don’t need a fast refresh rate. It’s messy and on perfboard, but it’s coherent, so I don’t care.
All of these connections are broken out to the edge pins where they’ll be passed to the Mainboard and eventually terminated.
Scott 🏴😷@enron really cool. following with great interest. not really a fan of trying to type into a terminal with a telephone keypad, have you considered what it would take to make it QWERTY?