A super simple non-intrusive circuit for measuring power consumption and reporting back to Home Assistant. Many homes these days have "smart" power meters that provide a means of non-invasive ...

This project uses an ESP32 to read data from a PM2100 power meter using Modbus RTU communication over RS485. The collected data is published to an MQTT broker, and the ESP32 connects to WiFi using ...

Energy is expensive these days. There’s no getting around it. If, like [Giovanni], you want to keep better track of your usage, you might find value in his DIY energy meter build. [Giovanni] built his ...

I admit that we're all pretty nerdy here at AP and we obsess over things that most people don't even consider. But we do it for all of you. One thing that some of us, especially Artem, want to know is ...

If you buy something from a Verge link, Vox Media may earn a commission. See our ethics statement. is a senior editor and founding member of The Verge who covers gadgets, games, and toys. He spent 15 ...

This story was originally published on Bikerumor. BikeOn is shaking up the power meter world with the launch of CycleClick, a compact, clip-on device that claims pro-level power metrics with no tools, ...