veroelectric
Junior Member

Bit of a change of plans: doing some testing on a gauge like this...

Hey Paul- Thanks for the suggestion -- definitely sounds like the way to go. The TeensyStep library is (per the GitHub readme, at least) not compatible with Teensy 4.0/4.1. I'd like to avoid building anything new...

Ah, so using a transistor as an intermediary (not running a PWM fan directly off of the Teensy), gotcha. Are you aware of the current limits with the 4.0 on the PWM analogWrite pins? The draw of the stepper motors on...