Latency of a digital input sent from a digital pin on a MPR121

Measured by connecting the MPR121 to a Pi Pico, toggling a digital pin on the MPR121, and timing how long it takes that signal to reach a target device over USB from the Pi Pico.

microcontroller Pi Pico
firmware new
controller MPR121
poll rate 1 ms
min 0.48 ms
max 1.31 ms
avg 0.79 ms
stddev 0.24 ms
%on time 96%
%1f skip 4%
%2f skip 0%
%3f skip 0%

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