Power Measurement Box

I present to you my power measurement box that I modeled for my NAS server, home automation, MQTT...

Here is the list of components:

- ESP32
- PZEM-004T V3 (in 100A)
- HTU21 temperature probe
- SRD-05VDC-SL-C relay (optional, because I have planned it for possible future development).
- AC-05-3 power supply (I am in France so I have 230V/50 Hz, you will need to adapt it if you have a different voltage such as 110V for example).

I wired it to the power strip where my server, my internet box and my Roomba vacuum cleaner are connected.

The ESP32 was configured via ESPHome.

I have identified the direction of installation of the components.

If you would like more information, do not hesitate to contact me.

This system can also be used to measure the total consumption of your home by installing it in your electrical panel.

Dimensions of the box:

136 x 122.4 x 39.5mm