I have a 3-button / 3-door garage door remote powered by a 3V CR2032 battery. I would like to use it in a DIY project where, by connecting it to a 3V circuit, I hope to programatically open/close the garage door.
With the battery in the remote, I've already been able to emulate a button press by appropriately closing the circuit. The circuit is closed by bringing together a positive ⊥ and negative ⊤ component on the board (polarity identified by a voltage meter). There are 6 of these (2 per door, connecting either or across works).
For the next step, I tried removing the battery and stuffing the battery compartment with copper tape to close the circuit. Then I tried closing the circuit as before, this time providing power directly (via the same battery I removed from the compartment). However, this did not work.
Is there a reason this wouldn't work? I would appreciate any advice and apologies in advance if I explained poorly; happy to follow up with additional details. Thanks in advance!