Isolated mains power monitoring (Arduino)
All about power today.. For a while now, Iβve been looking around for a mains (220-240VAC) power monitoring circuit that I might be able to interface with an Arduino.Β There is of course theΒ OpenEnergyMonitorΒ solution, but they seem to use a transformer to isolate and measure the mains voltage.Β The transformer doesnβt exactly couple to the …