IPEM-1 ESP32UE ATM90E36 IoT Power Energy Monitor Board

Description

IPEM, IoT Power Energy Monitor, is a 3 phase (or 3 x 1 phase), High-performance Mains Electricity Power Energy Monitor SDK board, designed for Home Automation.

This product

• This product is the version of the board with an Espressif ESP32UE (Internal PCB Antenna), and an ATM90E36 Energy Monitor.

Board Options

The IPEM SDK boards are based on an Espressif ESP32 WROOM, with an ATM90E32 or ATM90E36   This dual designed board, which is provided fully tested, offers the flexibility of the same PCB layout design, for the four options available, as shown below.

Antenna

As shown in the above table, IPEM board Antenna options include:

• ESP32E – Internal Wi-Fi/BT antenna (on the ESP32)
• ESP32UE – External Antenna (via U.FL).

The external antenna option will extend the Wi-Fi range if required, or where the IPEM board is housed in a metal enclosure.  On the external antenna boards, use is made of the U.FL connector on the ESP32-WROOM-32UE-N4.  An example of the folded external antenna is shown the photos.

Board Feature Overview

Further details can be found on this expanded comparison chart.

• Current Clamp Inputs
  • IPEM has three main CT Clamp inputs, for Current Measurement Options:
    • 3 x Single phases (such as Mains In, Solar Inverter, Power Circuit etc.)
    • Full Three Phase (3φ. Voltage on each phase is 120 degrees phase shifted, relative to each of the other phases)
    • Split Phase (Dual Phase A and B. Such as USA 2 x 120V)
  • The board has three, or four, standard 3.5mm sockets fitted, so the CT clamp can just plug in.
  • Solder pads are also provided on each current clamp input, where the 3.5mm connection is not available.
  • Burden resistor can be optionally enabled via a solder pad (Not needed for Standard Measurements)
  • Example of CT clamp are the  popular split-core YHDC SCT-013-000 (using a standard 3.5mm mono jack plug).
• Voltage Inputs
  • IPEM has three voltage inputs for safely monitoring mains voltages.  This achieved using a voltage derived from a SELV / Wall AC/AC Power Supply.
  • Voltage Inputs. You can use a single voltage, or multiple voltages input.
  • Three solder pads are provided, with a common ground.
  • Solder Options
• Board Power
  • IPEM has an on-board SMPS DC Power Supply, which is derived from the AC Power Input,   via an AC terminal block / solder pad, for normal operation.
    • This achieved using a SELV, Wall AC/AC Power Supply.  The supply needs to be 8 to 12 V AC RMS – Ideally 12V.
    • Examples of a suitable Low Voltage 4 to 12V AC power supplies are bell transformers such as the TR7, Byron Din Rail, or DATA01A Transformer.  These may vary in different countries but local sourcing should be straight forward.
• Flashing and Code
  • The IPEM board has a complete Wemos D1 ESP32 Mini compatible interface.
    • Allows ease of interfacing such as from Arduino IDE and Platform IO.
  • The USB input (via Micro USB), can also power the board when developing code.
    • The board can safely have both USB power and AC Power at the same time.
• EEPROM
  • On-board 24C64 EEPROM
    • 64-Kbit (8K x 8 bits)
    • Easy storing of parameters, Logs etc.
    • Accessible using standard I2C EEPROM library
• OLED Display
  • Should you wish to add a display to the IPEM board, a four pin header is provided.
  • Power pins are configurable for pin 1 and 2.

Board Configuration

Solder configuration pads are provided on the bottom of the PCB.

Specification of IPEM Family

The IPEM board is suppled fully tested.  You will require to flash your specific code, or from our examples on GitHub

In the Box

• IPEM ATM90E36 ESP32EU board – External Antenna Version

You will need to update the firmware with your preferred open source firmware, using a standard micro USB cable (not included).  Working examples of test code can be found in our Wiki and GitHub

• 1 x IPEM-1 ESP32 Board
  • SMD (Surface Mounted Components) Populated.
  • Fully Tested
  • 1 x Panel Mount Antenna
  • 1 x U.FL to SMA pigtail
• 2 x Terminal Blocks (2 Pin and 4 Pin – Not Soldered)
• 1 x Strip of straight pin header
• 1 x 4 pin header socket (Not Soldered)
• 1 x Complimentary screwdriver

Available Separately

• Enclosure
• OLED 0.96″
• Folded 2.4 GHz Antenna with U.FL Connector
• YHDC Current Transformer SCT-013-000 (100A/50mA)
• Transformer 12V AC

Shipping

All products in stock will be posted same day, where possible.  Postage is at cost and flat rate, irrespective of order size.

Any product not is stock, which is back-ordered, will be shipped as soon as it becomes available.  Notifications are sent automatically.

Should only part of your order be in stock, then we would normally send available item(s), and balance when available. Should you wish to not split the order, please comment to use.

 

Other Details

Further information on this product may be found in our downloads and Wiki pages.  Other technical information and code examples are also shared in our GitHub Pages.  Project information may also be found on Hackster.io

We value our customers and should you have any other questions, please feel free to contact us.

 

All our boards and related products are Designed and Manufactured in Great Britain.  This site is a subset of DitroniX.Com

Supporting the engagement, interest and careers of people, of all ages, through the fascinating World of STEM Learning and Amateur Radio & Electronics.  DitroniX, planting a seed in Electronics, for our future engineers.

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