We were catching up on a recent hackaday hackchat with eben upton and learned some fun facts: such as the DVI hack for the RP2040 was inspired by a device called the IchigoJam. we remember reading about this back when it was an LPC1114, now it uses an RP2040. well, we’re wrapping up the Metro RP2350 and lately we’ve been joking around that with DVI output and USB Host support via bit-banged PIO, you could sorta build a little stand-alone computer.
Well, one pear-green-tea-fueled-afternoon later we tried our hand at designing a ‘credit card sized’ computer – that’s 3.375″ x 2.125″, about the same size as a business card and turns out there’s even a standard named for it: ISO/IEC 7810 ID-1.
https://learn.adafruit.com/adafruit-fruit-jam