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#Specification IPEM-1

The IPEM IoT Power Energy Monitor board main features:

  • Compact¬†and¬†Flexible Design¬†SDK Board
    • All connections are¬†low voltage, for¬†safe operation
    • Easy to interface
  • Espressif¬†ESP32¬†WROOM Options
    • ESP32-WROOM-32E-N4
      • Integral Antenna Wireless and Bluetooth
    • ESP32-WROOM-32UE-N4
      • Ext Antenna – U.FL Socket
      • Wireless and Bluetooth
  • ATM90E3x Options
    • ATM90E32¬†Energy Monitor
      • 3 x Phases Line CT Clamp Input
        • Example YHDC SCT013000
      • 1 x Phase CT Clamp Input (To ESP32 ADC)
        • Example YHDC SCT013000
      • 3 x Voltage Inputs (AC RMS)
      • Power Modes Settings
    • ATM90E36¬†Energy Monitor
      • 3 x Phases Line CT Clamp Input
        • Example YHDC SCT013000
      • 3 x Voltage Inputs (AC RMS)
      • 1 x Phase Neutral CT Clamp
      • DMA Mode (Logging via SPI)
      • Power Modes Settings
  • 24C64¬†EEPROM
    • Parameter Settings
    • Logging
  • OLED I2C
    • I2C Interface
    • OLED I2C Connector
      • Configurable Power Pins
  • AC Low Voltage¬†Input (for Safety)
    • Power safely derived from a SELV / Wall AC/AC Power Supply
      • 8 to 12V AC RMS
      • Examples GreenBrook DAT01A or TLC TC TR7
  • Onboard¬†3V3 DC SMPS¬†Power Supply
    • Power taken from AC Input
  • Arduino¬†Wemos D1 Compatible¬†USB Interface
    • On-board Micro USB Socket
    • Flashing and Programming
    • Example wemos_d1_mini32
    • Can also used to power the board
    • Debugging
  • On Board¬†NTC (PCB Ambient Temperature)
    • ESP32 GP39 VN
  • USER GPIO/UART
    • 2 GPIO for User (GP16 and GP17)
    • UART Interfacing (UART 2)
  • Reset Button
  • User¬†Programmable Button / Link
    • Connected to GP26
  • Configurable Solder Jumpers
    • 4 x CT Clamp Burden Resistor 22R
    • CT4 configuration options
      • ATM90E36 I4 inputs
      • ESP32 ADC 1 CH7 – GP35
    • AC Voltage Measure V1P
      • Via AC Power Supply input
      • Via AC Voltage Header
    • ATM90E36 DMA
      • Auto DMA via ESP32 GP12
      • DMA Control
        • SPI Mode
        • DMA Mode
    • Power Modes
      • Normal
      • Partial Measure
      • Detection
      • Idle
    • PSU AP632x DC-DC SMPS
      • AP63203 Fixed Voltage
    • OLED / I2C Header
      • Configurable Pin 1 and 2
        • Pin 1 Ground or 3V3
        • Pin 2 Ground or 3V3
  • RGB Status LED
    • User Configurable via GPIO
  • Power LED
    • On 3V3
  • ATM CT LEDs
    • CF1 – Active
    • CF2 – ReActive
    • CF3 – Fundamental
    • CF4 – Harmonic
  • PCB designed to fit into an BMC enclosure
    • Also allows for the display to be included, or not.
  • Size¬†70 mm x 53 mm