Testing the input side of the Digital I/O Expander building block board, including shift register reads, input-to-output mirroring, and discovering a silkscreen labelling issue.
Posts for: #Shift Registers
Digital IO Expander Building Block Board — Part 1
Starting work on a digital IO expander building block board with 8 logic-level inputs, 8 logic-level outputs, output indicator LEDs, and shift-register-based control.