Specification

GTEM Outline Specification

• Espressif ESP32 WROOM 32
  • 2.4GHz Wi-Fi and Bluetooth LE MCU module, with dual core CPU
• ATM90E26 (Energy Monitor)
  • Metering features fully in compliance with the requirements of IEC62052-11, IEC62053-21 and IEC62053-23
  • Active Energy LED / Input to ESP32
  • Reactive Energy LED / Input to ESP32
• AT24C64 EEPROM
  • For storing parameters, calibration data, Logs etc.
• OLED I2C Connector
• Current Clamp Input
• AC Low Voltage Input
  • Power safely derived from a SELV / Wall AC/AC Power Supply
  • On-board 3V3 DC Power Supply
• USB UART
  • Micro USB.  Uses the popular CH340 for ease of developing code, flashing and debugging
  • Arduino D1 Flashing and Programming Compatibility
  • No drivers normally needed
• OPTO Input
  • Meter Pulse Opto Reader
• On-board Temperature Sensor
  • NTC (range -40ºC to +125ºC)
• Reset Button
• User GPIO
• User Programmable Button
• RGB LED (ESP software code / firmware controlled)
• DC Power LED (red)
• PCB designed to fit into an BMC enclosure (available separately)
  • Also allows for the display to be included, or not (available separately)
  • PCB Size 65mm x 53m