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You can use GPIO pins on your Rpi as pwm data signals. But this depends if you have the Rpi set up as an additional MCU for the control board in Klipper. I have not done this myself, but I understand that this is pretty common.
However you can use a data or servo pin on the control board to...
Hi,
I came across this looking for a solution for another problem, but thought I could offer some info.
CPAP fans are not so much fans as turbines. Unlike a radial fan, they focus mostly on pressure than airflow. Though the turbines in CPAPs spin very fast, up to 30,000 rpm, so they can push...
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