Is this the best (or even a sensible ) way to read the level of your oil tank? Not really. I was also motivated by the predicted shortages of heating oil for the 2022-2023 winter, in order to keep closer watch of my tank levels. I did the project as a fun diversion, to build something cool, and to learn a bit more about OpenCV. Alexa) announcements if the oil level has fallen to a low level. Home Assistant can also be configured to generate push notifications or make voice assistant (e.g. It provides the level reading to Home Assistant, where the Home Assistant app can show the oil level on screen at a glance, from anywhere. This project uses a $5 Raspberry Pi with WiFi and a tiny video camera to "read" the oil tank gauge level, using basic computer vision techniques. HTML5/JS web app allows real-time camera preview and instant computer vision parameter tuning.Home Assistant integration allows creation of custom dashboard displays and automatic notifications when tank level is low.NeoPixel RGB LED Display shows level readings and status at a glance, improving upon the original gauge.Computer vision detects position of the indicator relative to the scale markings to determine tank level.
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