EInk Feather Tester tests Feather with EInk
27our line of RP2040 Feather 'bones' continues a-pace. this week its an e-ink capable feather. the rp2040 chipset is a great e-paper driver because its got tons of SRAM for buffering the image bitmaps all at once. almost all paper displays use the same 24-pin connection so its easy to swap out different displays. during the test procedure of this feather, we load a test code that flashes TEST OK and some lines onto a sacrificial 2.13 inch display. if it got that far it means all is well, and we can put this board into the shop.
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