This is a 9 channel, 3 phase power meter designed to fit in a 2 module wide DIN enclosure.
The device can be used on 3-phase systems, there are 3 current channels for every phase (a total of 9 channels). It can also be used on a 1-phase system as well.
On the front there is a small OLED display that can display the metering information.
The project is inspired from: https://github.com/CircuitSetup/Expandable-6-Channel-ESP32-Energy-Meter
If you are looking for the easiest way to start using your display under Home Assistant: Home Assistant Quick Start Guide
Caution
The circuit is not isolated from the mains, so it is not safe to tuch any part of the board during use, nor connecting the device with other electrical interfaces without proper isolation! The AC neutral is connected to DC ground, so treat the circuit as you would with any live circuit!
The hardware uses two PCBs, one for the measurement and one for power, that fits into a D2MG 2 module width DIN rail enclosure.
More information about the hardware can be found in the hardware folder.
The meter uses an ESP32-S3 controller and ESPHome as it's firmware.
More information about the ESPHome firmware can be found in the esphome folder.