Not able to activate the door detection


Hey guys,
I just built my own enclosure for my snapmaker and want to add a door switch for laser engraving. So I just wanted to measure which pins of port 4 have to be connected to simulate a closed door, when the door detection mode is turned on. But unfortunately I am not able to switch the detection mode on in snapmakerjs although the printer is connected correctly to the PC and the serial communication is activated. When I try to select the ON state in the settings, it just jumps back to OFF. Did anyone run in the same type of problem or am I just missing an obvious detail?
My printer has firmware version 2.9 and the snapmakerjs software is 2.5.4

Thanks for any useful suggestion!


There exist bugs of door detection in v2.5.4. Earlier versions of Snapmakerjs might suit your need.


Thank you for this hint. It worked with Snapmakerjs version 2.5.2!