i just realized that there is something i would like to get done, but have zero idea as how to tackle it…
basically, i m looking for a way to “broadcast” a button press to HA, but…
i’m talking about low DC circuit that are being “closed” for a sec to get something done - like my apartment building’s intercoms system, the button for the stairs light, or my home doorbell.
i know all of these have their own solution with some kind of way or system that can integrate into HA, but i am not going to replace the entire intercoms system of the building to do that.
i thought, maybe there is some kind of way to get a device to “listen” on the specific circuit, that will advertise to HA when the button have been pressed (circuit have been momentary “closes”).
best thing i can think of at this point - maybe using something like a “shelly” device that can sit behind the actual button, and will “know” when the button have been pressed. however, some of the devices are low DC voltage (doorbell, intercoms), so i need to take that into consideration as well (or use AC to power the device, parallel to the “button” low DC wires).
i’d love to hear your thoughts about this issue