Commit f4350efc authored by Sam Calisch's avatar Sam Calisch

Update README.md

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This is documentation for an energy monitoring device built around the nRF52832 system-on-chip from Nordic. It includes a 2.4 GHz BLE-enabled radio transceiver, a Cortex M4F microcontroller, and a host of hardware peripherals. The device is capable of extracting current and voltage waveforms from a standard wall power plug without contacting the mains power. The current is measured inductively, as a mild steel flux guide channels magnetic flux through a sensitive hall effect device. The voltage is measured capacitively, as the flux guides couple with the conductors in the plug. Measuring both quantities allows us to separate active from apparent power, measuring the real power used by an appliance plugged through our device. This is documentation for an energy monitoring device built around the nRF52832 system-on-chip from Nordic. It includes a 2.4 GHz BLE-enabled radio transceiver, a Cortex M4F microcontroller, and a host of hardware peripherals. The device is capable of extracting current and voltage waveforms from a standard wall power plug without contacting the mains power. The current is measured inductively, as a mild steel flux guide channels magnetic flux through a sensitive hall effect device. The voltage is measured capacitively, as the flux guides couple with the conductors in the plug. Measuring both quantities allows us to separate active from apparent power, measuring the real power used by an appliance plugged through our device.
<a href='bc832-watt'>bc832-watt/</a> includes source files for a PCB built around the BC-832 module (containing the nRF52) from Fanstel. <a href='bc832-watt'>bc832-watt/</a> includes source files for a PCB built around the BC-832 module (containing the nRF52) from Fanstel.
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