• Odd about the battery usage. Definitely being connected uses up a decent amount of power, but apart from that, just advertising, it should last for maybe 6 months.

    Are you following http://www.espruino.com/Smart+Meter for reading the power usage, or something else? The way the LDR works, the more external light there is the higher the power usage, so that could be it? It's best to get it as dark as possible between the LDR and electricity meter

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