i like to connect some critical or dangerous hardware to one of those pins, like the enable pin for the high power laser or the step input for the Z axis.
that way you really know when reprograming is happening
Pics or it didn't happen.
My Creality Ender 3 S1 Plus is a giant paperweight that can't even be used as a boat anchor, cause I'd be fined for polluting our waterways with electronic devices.
Not as dumb as yesterday, but stupider than tomorrow!
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