CircuitSetup devices

Open-source hardware project and maker of the Expandable 6 Channel ESP32 Energy Meter, a Home Assistant / ESPHome-oriented CT energy monitoring platform.

Energy Meter Official site available

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Catalog devices

CircuitSetup products in the EnergyMeterHub catalog

Energy Meter Single-phase, split-phase, and configured 3-phase use when each measured phase has the correct voltage reference.

CircuitSetup Expandable 6 Channel ESP32 Energy Meter

An open-source ESP32 energy-monitoring board for Home Assistant and ESPHome users who want configurable CT-based monitoring across mains, solar, subpanels, and branch circuits.

ESPHome / Home Assistant API / local web server / EmonESP / MQTT / Wi-Fi or supported Ethernet builds Panel or enclosure-mounted ESP32 CT energy-monitor board installed with external current-transformer clamps and AC voltage-reference adapter(s). Home Assistant Local API

Brand overview

About CircuitSetup

CircuitSetup maintains open-source hardware and software for ESP32-based energy monitoring, including the Expandable 6 Channel ESP32 Energy Meter. The project is especially relevant for technically confident Home Assistant users who want local, configurable CT monitoring across mains, solar, subpanels, branch circuits, and multi-voltage or three-phase projects.

The product lane is more DIY and availability-sensitive than a mainstream packaged consumer monitor. EnergyMeterHub should therefore treat CircuitSetup records as open-source / maker hardware with strong technical documentation, rather than as a simple app-first retail product.

CircuitSetup products in the EnergyMeterHub catalog

CircuitSetup Expandable 6 Channel ESP32 Energy Meter

About CircuitSetup

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