Fan tacho readout
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While reading through the forums, I came to believe there is a way to connect a fan tachometer output to the Duet 2 Maestro in order to get a speed readout. I connected the pin to EXP_0 using a 1N4148 diode, cathode (black strip part) to the yellow wire, anode to Duet. Is there more to it than that? I can't seem to find the readout anywhere in the web UI.
RRF 3.01-RC6, DWC2.11
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should have to configure both the fan output and input with m950
M950 F2 C"!Fan2+exp.pb6" Q25000 ;see rrf3 notes for
https://duet3d.dozuki.com/Wiki/Gcode#Section_M106_Fan_On -
Thanks! Should I use a pullup on the input pin?
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i'd expect so as the tach output is usually open collector. you might have to adjust the pin name to fit the maestro as well.
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Thanks, I got the readout now! Now to just solve the little problem of it always being zero
