wondering if anyone can help. I have a homemade board with an Atmega16u2, been using it for months on two different projects with no problem. the 16u2 has an arduino bootloader, that i installed with avrdude, called Hoodloader2 (bootloader code and board file by GitHub - NicoHood/HoodLoader2: 16u2 …

ACMUX not declared in this scope

mikewax September 7, 2021, 2:35am 8

"I had the same experience in the past. This is a mistake in the AVR toolchain"
wow. NO WAY i woulda ever figured that out. Thank God 4 ur experience

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