TRRS troubleshooting
Which firmware do you have on the tidbit? I would look and see if you can figure out why your LEDs are going dim. That seems like a clue. The boards should behave and look exactly the same when connected over TRRS as they do when connected with USB. If one/both are going dim, something might not be right.
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Unknown User•3y ago
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Does the host keyboard work though out this? Does the Bit-C on that one get hot by any measure?
You can try turning the LEDs off on both and seeing if it behaves any differently. Those draw the most current by far of anything on the board.
Unknown User•3y ago
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It sounds like you’re bumping up against the limits of the power limit. You might have better luck with a different USB/TRRS cable combo. Worse case, you can turn the LEDs down in brightness on one/both boards, and that might make enough difference to keep ‘em both alive!
Unknown User•3y ago
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