I got a logic analyzer today, and was probing the RX/TX pins for UART when I noticed a lot of extra packets that appeared while I was uploading a sketch. They weren't compatible with the baud rates I tested them against. Therefore, I am not sure what protocol I am seeing. Any ideas? (Uno)

What protocol does the IDE use to upload sketches to a board?

DrAzzy March 30, 2018, 3:29pm 6

You would select UART.

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