this post was submitted on 01 Mar 2025
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Home Automation

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Discussion about general home automation ideas and projects, home automation protocols like Z-wave, Zigbee, Matter, etc, and home automation software and hubs like HomeSeer, Home Assistant, OpenHAB, Homey.

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My house was previously multiple units, and has nice sounding chime doorbell for two floors. I've set up a relay board so family members can ring one or the other bell from HomeAssistant. If someone comes to the front door, I'd like them to press a button to ring both.

Obviously I can use a smart button and a simple automation to trigger two relays. But is there some way I'm overlooking to have a dumb, standard wired doorbell button that will ring both chimes without causing either relay to also ring both?

Maybe there's a DPST weatherproof push button out there that would look nice on the wall?

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[–] NateNate60 1 points 2 days ago

Switch C is a button that completes two separate circuits without connecting them. You can buy this part online. Big home improvement stores probably also stock it depending on where in the world you live.