Split Single-phase Energy Meter

by CircuitSetup

Affordable remote energy monitoring for your entire home

View all updates Jun 04, 2019

Current Revision & Solar

Whew! Another busy week getting things organized for the Split Single Phase Energy Meter. There’s only two days left in the campaign!

Focus has been on the latest revision of the energy meter PCB. Added was a more powerful SMPS, bypass capacitors were moved closer to the IC, and two additional capacitors were added to filter noise and smooth out power signals. Four boards were assembled and tested. They passed, and everything looks fantastic!

Also in this week are the solar adapters. This allows two energy meters to be hooked up to one ESP32 (and optionally an OLED screen). In the photo below they are being tested.

There is a small goof here that will be corrected in the final version - that gap between the adapter and the energy meters. Software for the solar setup and documentation will be published shortly.

The box design for the solar setup is also complete:

Thanks again for your support!

$29,193 raised

of $6,300 goal

463% Funded! Order Below

Product Choices


Energy Meter Board

Perfect for building your own energy monitoring system. Hook up our energy meter to your MCU, current & AC transformers, load the software, and start monitoring!


Energy Meter Kit

Comes with Energy Meter, 2x 16 mm round YHDC SCT-016 120 A CT Sensors, Pre-programmed ESP32 Dev Module, 100x60x25 mm ABS plastic box, PCB ESP32 box adapter, and mounting screws. Everything you need to connect the energy monitor to your house and start monitoring your energy usage in no time. European customers must provide their own 9 V AC Transformers.


Solar Monitoring + Energy Meter

If you want to monitor your solar power generation and energy usage at the same time, this is the package for you! Comes with 2x Energy Meters, 4x 16 mm round YHDC SCT-016 120 A CT Sensors, PCB ESP32 adapter, Pre-programmed ESP32 Dev Module. European customers must provide their own 9 V AC Transformers.



CircuitSetup's goal is to make affordable and useful electronic components available to makers, and DIY electronics enthusiasts. Our products are carefully crafted, tested, and re-tested to make sure they meet the demands of their users.

John Deglavina

Founder & Product Designer

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