Circuit Setup Energy Meter Board

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The CircuitSetup Split Single-phase Energy Meter is an affordable, accurate, remote energy monitoring device for your entire home. It can monitor energy usage in real time, independent of your power utility’s meter, and can be easily hooked up to any wireless micro-controller (like an ESP8266, or ESP32) to transmit energy data into a program like EmonCMS. It can also be used to monitor solar systems to keep track of how much power you are generating from the sun. It uses safe current transformer clamps to sample current - no AC wiring is required.

  • IC: MicroChip ATM90E32
  • Connectivity:
    • SPI Interface to connect to any Arduino compatible MCU
    • Two IRQ interrupts, and one Warning output
    • Energy pulse output (pulses correspond to four LEDs)
    • Zero crossing output
  • Real Time Data Sampling:
    • Two current channels
    • One voltage channel (expandable to two voltage)
    • Measurement Error: 1% when calibrated
    • Dynamic Range: 6000:1
    • Gain Selection: Up to 4x
    • Voltage Reference Drift Typical (ppm/°C): 6
    • ADC Resolution (bits): 16
  • Calculates:
    • Active Power
    • Reactive Power
    • Apparent Power
    • Power Factor
    • Frequency
    • Temperature
  • Other Features:
    • Can use more than one at a time to measure as many circuits as you want, including solar power generation
    • Uses standard current transformer clamps to sample current
    • Includes built-in 500mA 3v3 buck converter to power MCU board
    • Compact size at only 40 mm x50 mm



Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • mgrusin / about a year ago / 1

    Is any further information or links to same available on how to use this and the other "Circuit Setup" boards?

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