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MIDI Over UART with Arduino and CircuitPython


This entry was edited (6 months ago)
in reply to blitzcitydiy

Any devices should be able to communicate over UART so long as the logic level matches. This is a pretty common problem where some devices are 3.7v and some are 5v. If you hook up an o-scope to the tx pin you can see what the logic level is, which usually but definitely not always matches the Vcc of whatever chip.

It definitely should not matter whether a device is being powered by USB or battery, unless something else is malfunctioning. What baud rate are you running the signal?

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