Hello, I'm building a midi step sequencer with 16 * 8 buttons with LEDS just for the steps. At first I was thinking using 8 multiplexers (CD74HC4067 16 channel) but I just learnt about the Keypad library. I think it could make the wiring a lot easier/cleaner with a matrix Is there a way to make …

Not a multiplexer. Use a port expander. [image]

Keypad library with multiplexer?

Paul_B April 19, 2021, 9:33pm 2

Not a multiplexer.

Use a port expander.

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