Wii GH3 Guitar

Latency of an input from a Wii GH3 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	0.48 ms	0.51 ms	0.55 ms
max	2.17 ms	2.41 ms	3.38 ms
avg	1.1 ms	1.41 ms	2.06 ms
stddev	0.38 ms	0.43 ms	0.66 ms
%on time	94%	92%	88%
%1f skip	6%	8%	12%
%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.