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the original incorrect wiring was my mistake - I followed a diagram for a different version of the controller board.
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the wiring shown in the png file I included is definitely the correct wiring for the Laserbox ESP32 V1.0 controller; that picture was sent to me came by Lightburn Support.
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my laser is now working correctly; I posted the forum entry because I thought it might be helpful to others encountering problems with laser on/off control.