Expandable 6 Channel ESP32 Energy Meter Add-on Board

Description

Enhance the functionality of your energy monitoring system with the CircuitSetup Expandable 6 Channel Energy Meter Add-On Board. This add-on board is specifically designed to expand the capabilities of your existing 6 channel energy meter, allowing you to monitor up to six additional electrical circuits for each add-on board. Whether you want to monitor specific appliances, additional rooms, or different areas within a building, this add-on board provides the flexibility and accuracy you need.

This listing is for the Add-on board only – a main board and an ESP32 (see options below) is required to use this board.

Up to 6 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.

Our meters are the only ones on the market to utilize 16 bit, highly accurate, energy metering ICs.

Features:

• Seamless Integration: The CircuitSetup 6 Channel Energy Meter Add-On Board seamlessly integrates with your existing 6 Channel Energy Meter, expanding its monitoring capacity without compromising performance. Effortlessly connect the add-on board to your meter and expand your energy monitoring capabilities.
• Expandable Monitoring: Monitor 6 additional electrical circuits with precision and accuracy, up to 6 add-on boards, for a total of 42 circuit monitoring channels. Keep track of energy consumption in specific areas or appliances, providing you with a comprehensive understanding of your overall energy usage.
• Accurate Measurements: Built with high-precision energy metering electronics, this add-on board ensures accurate measurements of energy consumption. Trust in its accuracy to track and compare energy usage over time.
• Real-time Data: Instantly access real-time measurements of power consumption, voltage, current, and other essential data for each added circuit. Stay up-to-date with your energy usage and make adjustments in real-time to optimize efficiency.
• Versatile Application: Whether you’re a homeowner, facility manager, or energy-conscious individual, the 6 Channel Energy Meter Add-On Board provides the versatility to suit your specific needs. Expand your monitoring capabilities in residential, commercial, or industrial settings.
• Optimized Energy Efficiency: By adding the 6 Channel Energy Meter Add-On Board to your existing system, you gain a more comprehensive understanding of your energy consumption patterns. Identify areas of improvement, track efficiency initiatives, and make informed decisions to optimize energy usage.

Technical Specs:

• Uses 2 Microchip ATM90E32AS energy metering chips – 3 current channels & 1 voltage per IC
  • 3 current channels (CT1-CT3 & CT4-CT6) & 1 voltage per IC
  • Measurement Error: 0.1%
  • Dynamic Range: 6000:1
  • Current Gain Selection: Up to 4x
  • Voltage Reference Drift Typical (ppm/°C): 6
  • ADC Resolution (bits): 16
• For each current channel the following can also be calculated by the meter:
  • Active Power
  • Reactive Power
  • Apparent Power
  • Power Factor
  • Frequency
  • Temperature
• Uses standard current transformer clamps to sample current
• 22ohm burden resistors per current channel
• 2 IRQ interrupts, and 1 Warning outputs
• Zero crossing outputs for each current channel
• Energy Pulse outputs per IC (4 per IC x2)
• Active Power LED pulse for CT1-CT3 & CT4-CT6
• SPI Interface

What you’ll need:

• Expandable 6 Channel ESP32 Energy Meter Main Board – add-on boards can not function properly without a main board
• 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 monitor
  • SCT-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 mains
  • Others 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):
  • NodeMCU
  • Espressif ESP32-DevKitC-32E
  • Espressif ESP32-DevKitC-VIE if you need better wifi reception
  • Anything 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 right
• A 3d printed case (optional)
• Software (choose one):
  • Our custom version of EmonESP and the ATM90E32 Arduino library
  • ESPHome. Details on integration with Home Assistant are located here
  • Libraries for CircuitPython & MicroPython