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How can I have two boards communicate in Master-Slave using I²C? How can I have two boards communicate in Master-Slave using I²C?

Hello! I am learning how to build keyboards and I am trying to create a split keyboard that is split with a TRRS cable. I have got as far as wiring them on breadboards so that they can run simultaneously (just connecting VBUS to VBUS and GND to GND on both). I have looked for tutorials on using I²C to do so but they all seem to use Arduino-C. How can I use circuit python to connect these two to run together?

Edit: I will test on breadboards first, not on the real thing.



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