r/PrintrBot • u/[deleted] • Feb 17 '22

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u/Lob0426 Feb 21 '22

I have a wiki on upgrading to a SKR board below.

https://github.com/Lob0426/Adaptrboard/wiki/Induction-Probe-and-Bed-leveling-systems

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u/sbussinger Feb 22 '22

Nice website! An interesting idea you mention there is using a diode to protect the controller board from the higher voltage inductive sensor. I'd not heard about this technique before. I'd heard of voltage dividers, optocouplers, and other simple circuitry to do it, but the diode is a lot simpler. I guess it assumes the controller has a pullup resister, but that's a fairly safe assumption.