The Sonoff doesn’t use the ESP’s ADC pins, so he’s broken one of them out on a lead to a current transformer which ... incorporating an ESP port of an Arduino current sensing library.

As a variable transformer, often referred to ... Additional safety features have been implemented using an Arduino Uno R3 clone, a current sensor, and several relays. The system will automatically ...

Allegro's ACS37030 50-A current sensor protects wide-bandgap GaN devices by sensing current over the industry’s widest ...

With the new SCT current ... transformers covers all applications for currents ranging from 1 A to 5000 A with a choice of ring-type and split-core devices as well as three-phase current transformer ...