Wii GHWT Guitar

Latency of an input from a Wii GHWT Guitar.

Measured by connecting it to the microcontroller in question, and then sending a signal to toggle the Strum Up input, and timing how long it takes that signal to reach a target device over USB.

microcontroller	Pi Pico	raphnet wusbmote	Pi Pico
firmware	new		old
poll rate	1 ms	1 ms	1 ms
min	0.58 ms	0.76 ms	0.8 ms
max	2.57 ms	2.71 ms	3.82 ms
avg	1.43 ms	1.72 ms	2.34 ms
stddev	0.39 ms	0.42 ms	0.63 ms
%on time	92%	90%	87%
%1f skip	8%	10%	13%
%2f skip	0%	0%	0%
%3f skip	0%	0%	0%

Note that in the below graph, you can click on legends to show and hide different controllers when comparing.