ESP32: measure whole-house AC current with an SCT-013
Clamp an SCT-013 current transformer around your main feed, read real AC current on the ESP32, and convert it to watts with the burden-resistor math.
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#energy
2 tutorials
ESP32: count LED pulses on your utility meter to track kWh
Read your utility meter's blinking LED with an ESP32 photoresistor and count real kWh: interrupt pulse counting, kWh math, and MQTT for a live whole-house power figure.