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What's a unique customization on your Linux machine you think no one else has?
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this post was submitted on 14 Jan 2025
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I've got a RPI running a full-screen 'kiosk' view from homeassitant that turns an external display on/off based on a motion sensor.
So basically it's showing current temperatures, thermostat control, etc. but I have the display turn off after X minutes of no movement and turn on when there has been movement so it's only on when you're in the room.
I'd love to see your implementation specs, code, pr any other technical details you'd like to share. I'm setting up home assistant and one of the things I want it to do is replace the functions of my thermostat and add some additional details.
I used to have a Nest Thermostat, but my furnace needed to be replaced a couple of months back and I got a Mitsubishi heat pump, but their thermostat sucks, and it isnt compatible with Nest because it's all wireless. I installed the WiFi add-on to the furnace so I can use the app, too, but it also sucks pretty bad. Plus I miss the functionality of it turning down the heat when I'm away to save money and turning it back on before I get home.
So I'm planning to implement my own solution and documenting and open sourcing everything. But it's going to be several months before I get to doing it due to other more urgent projects. So, I'm looking at everything available. I definitely will be setting up a small display to replace the thermostat and having motion detectors to turn on the display when you approach it to see the temperature and such and to supplement the home/away detection.
Anyway, I would love to see your implementation to see how you did this piece of it.
I have a similar display in my kitchen. It's in portrait mode and has time (my timezone and others), weather (hourly and daily), and dynamic popups for weather alerts in the top 1/3. It has a spot for dynamic content below that that shows things like time remaining for my espresso machine to heat up and the temperature of my ember mug if I'm using it. The bottom half of the screen flips every 15 seconds between calenders for my partner and I, and local scheduled transit times and live train times with a map of current train positions.
esphome or custom?
Much simpler than that - The motion sensors are zigbee and integrated with HomeAssistant. I have a HA automation that sends a REST call to a webservice I wrote on the PI that then just needs to write 1 or 0 to /sys/class/backlight/rpi_backlight/bl_power.
Do you know what the chip of the PIR is? How many false positives do you get?
It's one of these. I don't know the chip but I haven't had any issues with false positives. If anything they're slightly under sensitive, but not enough to be a deal breaker for my purposes.
I have similar, but I turn my display on/off with HDMI-CEC based on time.