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(temp) STM32F103 and W5500 Pulse-Based Home Power Meter

Power-Meter-2 measures household energy usage by detecting the blinking pulse of an existing electricity meter and serving calculated power data through a W5500

josephsr

Published July 04, 2026

Original author: iliasamOriginal source (new tab)

(temp) STM32F103 and W5500 Pulse-Based Home Power Meter

Project description

Project Overview Power-Meter-2 is not a full smart meter, metering IC design, or cloud energy platform. It is a local auxiliary monitor that reads the optical or pulse output behavior of an existing electricity meter. The firmware converts pulse timing into current power and pulse count into accumulated energy, then exposes the result through an embedded web page served by the MCU over Ethernet. The repository contains firmware, schematic material, a README, and example images, but it does not include a packaged release. This makes it more suitable as a source-level reference design or…

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