I'm an electronics noob willing to learn. So I have a door bell that looks like it is wired like this:
And I've bought a fancy 3V battery powered device that is intended to be wired simply like this:
Now I would like to trigger both with the same door bell push. (The push is already in place with wires going where I wouldn't really want to disturb them.)
So how would I go about this?
I know enough that I can't just connect both together. And I've learned that there is a way where a circuit with a transistor can act as a simple SPST switch (see https://www.electronics-tutorials.ws/transistor/tran_4.html, https://www.nutsvolts.com/magazine/article/may2015_Secura, and a number of similar tutorials/descriptions).
But that is how far I got. What would possible approaches to this?