I have a switch matrix controller for Arduino that got me thinking. I wonder if it would be possible to do a circuit that would allow duplicate reading of the mpus switch matrix. I.e. a second switch matrix with pass through.

This would allow the tandem matrix to be plug into the original headers and would allow switch based actions to be performed without any piggyback switches.

The trick would be doing it without adding any latency to the original signal.

Thoughts? Already been done?

Working on a Sys 80 Driver board tester using an Arduino mega. The output board is made by pascal

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