15
Accurate/smart oil sensor?
(discuss.tchncs.de)
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
My tank came with a mounting point on the top of it where you can fit an ultrasonic sensor. You just configure it with the depth of your tank and that’s it. I have a unit inside that shows how much oil I have left.
Apparently, it uses an RF protocol that can be intercepted and interpreted in HA with the right dongle but I haven’t done that.
Edit: mine looks like this although with different branding.