Description

Introducing the Smart Powermeter — an open solution for your energy consumption measurement.

Featuring a 2.9-inch e-paper display, this meter offers instantaneous grid status updates, empowering you with information while it's IoT capabilities seamlessly integrate with home automation systems (like Home Assistant), offering comprehensive energy monitoring capabilities.

Setting up the Smart Powermeter is effortless, thanks to its built-in 230VAC -> 5VDC regulator that simplifies installation by tapping into existing wires. With support for up to 6 CT clamps, it accommodates triphasic setups or allows detailed monitoring of specific areas.

Gain visibility into usage patterns, track trends, and empower yourself to optimize efficiency and trim costs.

What's in the box

A SMD pre-soldered Smart Powermeter board, ready to be programmed by you, using the Arduino IDE or the recommended configuration for ESPHome.
Two THT components that you will need to solder by hand:
- The HLK-2M05 power supply module.
- A 2P screw block terminal.

And optionally, you can add:

296×128, 2.9inch Black & White e-Paper display.
A black-transparent plastic enclosure,115*90*40mm. DIN-rail compatible and with mounting holes to the wall.
One or two sets of 3 CT clamps with the different values:
- SCT-013-010 series, conversion rate of 10A:1V
- SCT-013-025 series, conversion rate of 25A:1V
- SCT-013-050 series, conversion rate of 50A:1V
- SCT-013-000 series, conversion rate of 100A:50mA*

* For former consumers, this is the same CT model that was (optionally) included by default on the kit until 17/11/2024. For new consumers, note that this model is the only one not requiring to modify the burden resistor jumpers, any other CT model convertin current directly to V (xxA:1V) will require a small cut on the solder wires, as indicated on the documentation.

Documentation

Find everything you need to know about the Smart Powermeter in the official documentation website: https://smart-powermeter.readthedocs.io

Features

	Since it is based on the extended ESP32-S2 microcontroller you can upload the ESPHome firmware and connect it with your Home Assistant setup or simply upload your own Arduino codes.
	Open-source. If you have any questions or suggestions about the board, just check out the extended documentation, and if you still want to dig deeper, check out the design files on Github
	Simple and clear. Read up to 6 independent current channels, compute the power, and display it on the e-paper screen. Since you can support ESPHome, monitoring your home's electric consumption is easier than ever!
	Compact and expandable. Want to read external sensors? Enhance its connectivity through the I²C port to measure more than just current.