Z motor on expansion board not moving

[wdenker]

@wdenker can't even get it to report 3 out of 4 times.

12/20/2023, 4:25:15 PM	M591 D0
12/20/2023, 4:25:12 PM	M591 D0
Simple filament sensor on pin (io1.out,serial1.tx), enabled, output high when no filament, filament present: no
12/20/2023, 4:25:00 PM	M591 D0
12/20/2023, 4:24:59 PM	M591 D0
12/20/2023, 4:24:41 PM	M591 D0

[jay_s_uk]

@wdenker it probably needs connecting to a .in rather than a .out

[wdenker]

@jay_s_uk we've tried both in and out.

[jay_s_uk]

@wdenker can you confirm your wiring, ideally with pictures , and what type of filament sensor it is?

[wdenker]

@jay_s_uk ah you were right. We had to switch it to 5v vs 3.3 and didn't have it on in after we swapped to the 5v. So all of my issues are resolved at this point.

[wdenker]

@wdenker Well I got ahead of myself still getting the error just not as often.

[wdenker]

@jay_s_uk Here are the pics. I have also updated config to reflect going to io2.in vs out

[wdenker]

@Phaedrux any ideas?

[droftarts]

@wdenker on Duet 3 boards, io.out pins can be used as inputs, but have no series resistor to offer voltage protection, so are only 3.3V tolerant. It is possible you have damaged the 3HC connecting a 5V endstop to an io.out pin.

Have you tried a different filament sensor? It is quite possible that the microswitch or wiring is faulty, or could be picking up interference from motor or heater wiring.

Ian

[jay_s_uk]

@wdenker are you powering the 5v_ext? have you tried using it with 3.3v as according to the trianglelab docs it also works with that

[wdenker]

@jay_s_uk we have tried the 3.3 on the duet and it does not work so we figured we have to use the 5 volt.

[jay_s_uk]

@wdenker if it doesn't work with 3.3v, which the manufacturer indicates it should, then i guess theres an issue with it

[wdenker]

@droftarts I would think that I would have only damaged that one port if that was the case. I have tried multiple ports to validate that.

[wdenker]

@jay_s_uk no none of them work with the 3.3 manufacturer claims they are 3.5 from everything I've seen and I have five working ones that I tried on the 3.3 and moved over to the duex 5 And they all work with the 5 volt.

[wdenker]

@jay_s_uk The other thing I am curious about is if the sensor number out of range error in the M98 p"config.g" if that may be somehow causing it but it doesn't give any reference to what is out of range and there are 3.

[jay_s_uk]

@wdenker your sensor number out of range is to do with the way you've set your thermostatic fans up. H100 etc isn't valid

[wdenker]

@wdenker ah ok well any other things I could try at this point?

[wdenker]

@jay_s_uk I was able to fix that I basically gave it a mcu temp to look at to turn on. Now if I could just figure out this filament sensor I would be golden. I have tried io.0-2 and 3 different sensors that work fine on a duex 5 but coincidentally will not work on the duet.

[jay_s_uk]

@wdenker did you check you were actually supplying 5v to the 5V_EXT?

[wdenker]

@jay_s_uk reads at 4.96 so I should be good there.