I hI have worked out all the wire colours with a continuity tester, and it does work as you say, switching polarity without the module.....
But do you know what the module does ?? it only has 3 wires, but it has a dual 555 timing circuit, so it must have something to do with auto folding with an alarm or something.....
Any idea what the yellow wire would need.....possibly a positive pulse to fold and a negative pulse to unfold....or visa-versa...??
