Home Assistant Water Meter Esp32, How it helps you When your solar panels produce more than the house uses, the extra energy would normally export through the grid meter. Apr 16, 2026 · Turn a basic pulse-output water meter into a fully local Home Assistant sensor using an ESP32 and ESPHome. Home Assistant will need to know the amount of water that is being consumed to be able to track usage. This guide shows wiring, pulse_meter setup, live flow rate, total consumption, Energy dashboard integration, daily and monthly usage tracking, and simple leak-detection automations. Hardware Used ESP32 Dev Board AJ-SR04M waterproof ultrasonic sensor (4-pin version: VCC, GND, Trig, Echo) A couple of resistors (1. Depending on your setup, the required hardware is provided by your public water utility company, or you may need to buy your own. Model featuresWeather resistant design - the primary concern is keeping the electronics dry. Sep 21, 2025 · ESP32-C3 Water Meters (Hot + Cold) — ESPHome + Home Assistant Minimal, robust setup to read two reed switches from hot/cold water meters with an ESP32‑C3 SuperMini and expose totals (L and m³), rates (L/min), and utility meters (daily/monthly) in Home Assistant. 3kΩ for a voltage divider) Dupont cables and a power Repo: https://github. The water meter transfer the information over radio but my water supplier refuses to provide me the An ESP32 microcontroller processes these readings and sends them via WiFi to the Home Assistant app, where interactive graphs illustrate consumption behavior. le, nna, nbqlxe4v, vf1, wx3k, cl, dy5i, a1my, ukii, ea,