I have several rooms in my new (to me) house that have proprietary 2 Gang interface panels for communication with a whole house audio system which is no longer installed in the home. Sonos has replaced the previous system and no longer require the static room controls.
I would like to add some touchscreens which will fit in these locations (2 Gang Box) and can provide whole house information plus room specific controls.
I am looking for recommendations for hardware. Also interesting use cases for such technology would be fun to read about.
I haven't done this myself, but have just seen these in passing: Brilliant Smart Home panels.. They look perfect for your application, but are expensive. I can't vouch for them as I've never used them. I use a 15.6" touchscreen, which would be much bigger than your 2 gang sizing desire.
I use 10" touchscreens with a USB power supply behind in the wall box.
Just replaced my old ones with Fire tablets and they work great for a decent price.
I have heard mixed (at best) reviews of that Brilliance stuff. I thought it looked good when it first came out, but then I started hearing it was flaky, unreliable, etc. It would be nice if there was a reliable option similar to that.