kevinhikaruevans/talkabout-kicad

Add shift register to keyboard daughter board

Opened this issue · 3 comments

kevinhikaruevans commented

Would like to use less gpios

kevinhikaruevans commented

Maybe a Johnson counter with ext sync

kevinhikaruevans commented
  • ordered 74HC series shift registers for both input & output
  • required pins off the esp32: shared clk (23?), shared en, input, output

Q: is it possible to mount these + the resistor network (#2) off the keyboard board? the sw vias are kinda in the way