nanopi::smart meter

Meter: Home | RZ2 cooling | RZ2 | RZ1

Time span: last 60 minutes | last 6 hours | last 24 hours | last 7 days | last 30 days

The graph above, produced by rrdtool, depicts the electricity consumption in my home. Our meters are Landis+Gyr ZMB120 which feature an S0 interface, an LED giving 1000 impulses per kilowatt hour. Using a simple photo transistor and some interfacing circuitry, I feed these impulses to a nanopi neo air running openSUSE, where they are recorded.

My main interest is to identify long term changes in electricity consumption, but I imagine I'll come up with other interesting uses for this data.

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