I think the standard control for TV is the RS-232C port on the TV.
https://community.home-assistant.io/t/serial-projector-contr... from a quick search.
I think the standard control for TV is the RS-232C port on the TV.
https://community.home-assistant.io/t/serial-projector-contr... from a quick search.
One of the meeting rooms here at work has a couple of big panels for displaying presentations, and they're regularly misinterpreting noise on some line or other and changing their brightness/contrast/etc settings. It's highly annoying. I imagine there's some kind of data line plugged into the TVs which is picking up interference and causing them to freak out.
I inherited an old Sharp LCD TV that has a serial port. I did some digging and discovered I can power it on and off thru the serial port (amongst other commands). It serves a role in my home where it needs to be on part of the day. Turning it on and off via serial is very, very nice.
HDMI CEC could do something similar as well.
I'm surprised we haven't seen a cheap, USB powered Bluetooth RE-232C dongle for home assistant yet.
Esphome+hdmi breakout board+llm (or use an existing project like [0])
[0] https://github.com/Palakis/esphome-native-hdmi-cec
Say if we have a pi laying around, could we emulate this?
I guess we could.
Using a whole Raspberry Pi seems like overkill, though: Support for a wide variety of common USB serial chips is already built into esphome. https://esphome.io/components/usb_uart/
Just wire it up with a cheap dev board, build a firmware image for it, and that end of things is... done, right?