Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io
Garage sensor. Uses distance sensors to detect door open/closed and car present /absent. Has buttons to open/close the doors, a 3v garage door remote. Also has a motion sensor, temp/humidity sensor and a photo resistor to understand outside ambient brightness.
Looking at building some fridge/freezer temperature and water leak sensors.
I have a e-ink screen next to my office door that displays the date, or a warning icon when I'm in a meeting. It uses the "camera in use"/"microphone in use" entity from the desktop app for meeting detection.
My kids really like it.
What did you use for your screen? I've been interested in something like this.
It's a 4.2 inch e-ink screen from waveshare driven by an ESP running ESPHome. Nothing fancy, really. I used to change it "manually", but the lightbulb moment happened when I realized I had the entities I needed in the HA desktop app.