DescriptionThe next small batch of meters is currently being assembled and will be available in about 4 weeks from 8/6/26. Pre-order yours now!Stock = number of pre-order spots availableIntroducing the CircuitSetup Expandable 6 Channel Energy Meter – the ultimate tool for monitoring and analyzing energy consumption in your home or workspace. This cutting-edge meter provides you with accurate and detailed measurements, helping you make informed decisions about energy usage and efficiency. Whether you’re a homeowner, a facility manager, or an energy-conscious individual, the CircuitSetup 6 Channel Energy Meter is your key to understanding and optimizing energy consumption.Up to 6, 6 channel add-on boards can stack on top of the main board to allow you to monitor up to 42 current channels in 16-bit resolution, in real time, all at once! Each add-on board can measure an additional voltage channel.With ESPHome loaded on the ESP32, the 6 Channel Energy Meter can easily output energy data to the new Home Assistant Energy Dashboard. Individual circuits, solar, as well as whole house energy can be imported into Home Assistant.Our meters are the only ones on the market to utilize 16 bit, highly accurate, energy metering ICs.See this order page to save 5% on bundled items.See the latest hardware and software documentation in the Github repository.Expandable: The CircuitSetup 6 Channel Energy Meter is designed to adapt to your specific needs. It supports up to 6 additional add-on boards, for a total of 42 circuit monitoring channels, enabling you to monitor even more circuits and customize your monitoring system to match your requirements.6 Channel Monitoring: This energy meter allows you to simultaneously monitor up to 6 electrical circuits, giving you a comprehensive view of energy usage throughout your space. Keep track of individual appliances, rooms, or even different areas within a building.Accurate Measurements: Built with high-precision energy metering electronics, this meter provides reliable and precise measurements of energy consumption. Trust in its accuracy to track and compare energy usage over time.Real-time Data: The energy meter provides real-time measurements, allowing you to instantly see power consumption, voltage, current, and other crucial data for each channel. Stay informed about energy usage fluctuations and identify any anomalies or inefficiencies.Versatile Application: Whether you’re a homeowner, facility manager, or energy-conscious individual, the 6 Channel Energy Meter provides the versatility to suit your specific needs. Expand your monitoring capabilities in residential, commercial, or industrial settings.Optimized Energy Efficiency: By gaining insights into your energy consumption patterns, you can identify opportunities to reduce waste and optimize energy usage. Make informed decisions about adjusting usage habits, upgrading appliances, or implementing energy-saving measures.Technical Specs:Uses 2 Microchip ATM90E32AS energy meterings chips:3 current channels (CT1-CT3 & CT4-CT6) & 1 voltage per ICMeasurement Error: 0.1%Dynamic Range: 6000:1Current Gain Selection: Up to 4xVoltage Reference Drift Typical (ppm/°C): 6ADC Resolution (bits): 16For each current channel the following can also be calculated by the meter:Active PowerReactive PowerApparent PowerPower FactorFrequencyTemperatureUses standard current transformer clamps to sample current22ohm burden resistors per current channel2 IRQ interrupts, and 1 Warning outputsZero crossing outputs for each current channelEnergy Pulse outputs per IC (4 per IC x2)Active Power LED pulse for CT1-CT3 & CT4-CT6SPI InterfaceWhat you’ll need:Current Transformers (depending on your application)SCT-006 20A/25mA micro CT (6mm opening – 3.5mm connectors) – these are great if you have a lot of 15A circuits that you want to monitorSCT-010 80A/26.6mA mini CT (10mm opening – 3.5mm connectors)SCT-013-000 100A/50mA (13mm opening – 3.5mm connectors)SCT-016 120A/40mA (16mm opening – 3.5mm connectors) – for monitoring mainsOthers can also be used as long as they’re rated for the amount of power that you are wanting to measure, and do not output more than 720mV RMS, or 33mA at their peak amperage rating.AC Transformer: Jameco Reliapro 9v or 12v. The positive pin must be 2.5mm (some are 2.1)ESP32 (choose one):NodeMCUEspressif ESP32-DevKitC-32EEspressif ESP32-DevKitC-VIE if you need better wifi receptionAnything else with the same pinouts as the above, which are usually 19 pins per side with 3v3 in the upper left & CLK in the lower rightA 3d printed case (optional)Software (choose one):Our custom version of EmonESP and the ATM90E32 Arduino libraryESPHome – Details on integration with Home Assistant is located here, and here. Our ESPHome Installer is located here.Libraries for CircuitPython & MicroPython
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