EDIT ignore as DUET says the problem doesn't exist.
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@CaLviNx said in IR Sensors with the Duet-3!!!:
This issue manifests itself by providing very inconsistent probing results with random height variations when a print is attempted
can you post the result of a m48
https://forum.duet3d.com/topic/6962/m48-measure-z-probe-repeatability-and-print-to-serial-output -
From my understanding is that your P8 in M558 will always show 0 or 1000. For analog in you need a P1.
With Duet 2 and earlier Duets: Connect the VCC, GND and OUT pins of the sensor to 3.3V, GND and IN respectively on the Z probe connector, and select mode 1 in the M558 command. With Duet 3 main board, expansion board or tool board: Connect the VCC, GND and OUT pins of the sensor to 3.3V, GND and IN respectively on an IO probe connector, and select mode 8 in the M558 command.
think the analog input was cut from the duet 3! Not all pins are ADC capable on MCUs
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@CaLviNx yep. thats why it is not possible to get a reading between 0 - 1000 because its only low (0) or high (1000)
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@T3P3Tony would it be possible to use the thermistor input with P1 on the 1LC?
@CaLviNx can you try using a thermistor pin with P1? it could work. On a SKR 1.3 running RRF3 it does. First hand expirience
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@CaLviNx The fact that you've always had good success with the IR probe on gen 2 products rather looks like you have fallen foul of one of the firmware limitations of gen 3 in that it only supports type 8 or 9 probes. The latest information is that this is will not be fixed. https://duet3d.dozuki.com/Wiki/Duet_3_firmware_configuration_limitations
Any chance you can connect the probe to the main board ?
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@deckingman said in IR Sensors with the Duet-3!!!:
@CaLviNx The fact that you've always had good success with the IR probe on gen 2 products rather looks like you have fallen foul of one of the firmware limitations of gen 3 in that it only supports type 8 or 9 probes. The latest information is that this is will not be fixed. https://duet3d.dozuki.com/Wiki/Duet_3_firmware_configuration_limitations
Any chance you can connect the probe to the main board ?
I have tested with the probe connected directly to the main-board and I still encounter the issue, But.... a penny might just have dropped!!
Thinking about it, the one thing I havent done is to test the sensor in mode P1 when connected directly to the main-board as the restriction of using P8 is only in place when using the tool board.
But IF that does cure the issue it yet again makes a mockery of the point of the tool board.
I will test and report back
Thank you for the nudge to the brain.
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The Escher3D/Duet3D IR sensor works fine in digital mode with Duet 3. The LED will flash twice on power up, to indicate that it is in digital mode.
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@dc42 said in IR Sensors with the Duet-3!!!:
The Escher3D/Duet3D IR sensor works fine in digital mode with Duet 3. The LED will flash twice on power up, to indicate that it is in digital mode.
If that is so please explain why the issue is occurring only Duet-3 boards but not on Duet-2 boards.
Yet again it appears that Duet is not interested in fixing issues with the "evolution" hardware and instead categorically stating that an issue a user is reporting doesn't exist, classy, real classy.
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The documentation is out of date, because it assumes that an IR sensor connected to a Duet will always run in analog mode. That isn't the case with Duet 3. We will correct the documentation.
Edit: now done.
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@CaLviNx
EDIT ignore as DUET says the problem doesn't exist.
Come now, you know that's not true.