Maker estimates home heating oil level with ESP32 and a clamp-on current sensor
JeremyCMorgan · x · 2026-09-03
Instead of installing a level sensor inside the tank, this maker clamps a current sensor around the burner wiring. An ESP32 tracks burner runtime to estimate oil usage, gallons remaining, burn rate, and days left — a fully non-invasive, low-cost setup.
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