RONVROD Posted October 2, 2020 Share Posted October 2, 2020 (edited) Hello. This is my first post so please excuse me if selected the wrong category to post in. Electronics is not my field of expertise so if I come across as being ignorant then I'm guilty. I'm using a Digilent 210-156 step down voltage regulator to power a LiftMaster remote garage door opener. My plan was to use an existing switch such as the horn to provide intermittent 12VDC Input but that doesn't work. Switch Input current off and the Output is 0VDC. Switch Input current on and the Output is 3.33VDC. That should make the remote opener transmit a signal but it doesn't. With constant 12VDC Input switching the Output positive makes the remote opener transmit a signal If I leave the Input hot and then switch the positive Output then it works. Is there an explanation for that behavior? Ron Becker Edited October 2, 2020 by RONVROD Link to comment Share on other sites More sharing options...
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