Reverse-engineering a RP2040-based watch #PiDay #RaspberryPi #RP2040 @Raspberry_Pi
Alasdair Allan checks out a RP2040-based round faced watch off Tindie.
Comes with pre-blown firmware, but absolutely no documentation at all. So I guess it’s time to try and figure out how they’re talking to the screen. First stop `picotool` to poke around inside the firmware, and then more aggressive methods. Although, with a bit of luck, I can find some datasheets for the screen and other peripherals. Fascinating one!
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