Monitor the energy consumption in your home or business over wifi with the ESP32 Energy Monitor Shield. This Energy Monitor Shield is based on our well tested board: Energy Monitor Shield v0.2. It allows to connect up to two Current Transformers (CTs) to the ESP32 Wifi and Bluetooth Dev Board.  The shield outputs AC current data to ESP32 analog pins 33 and 34.

The recommended configuration is to use at least two Current Transformers, one for each phase.  Simple plug-in the Current Transformers into the shield, connect the clamps around your primary AC lines and use the EmonLib library to read the current.

This shield works with the following Current Transformers:

100 AMPS MAX

30 AMPS MAX