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Reading my electric meter with RTLSDR
The personal blog of software engineer Jeff Sandberg
There were approaches for pulling power usage information from US systems; some electric utilities provide an API for access to their data, and there are many such integrations built into HomeAssistant, ripe for the pickings. I'd heard rumblings over the years that people were using it for all sorts of interesting use cases, such as modernizing old 433MHz burglar alarm systems, reading data from weather stations, and so forth. I spent a bit more time faffing about trying to find an interval that didn't leave RTLAMR always listening, while keeping the data fairly fresh.
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