https://github.com/ditronix/ipem-pihat-iot-power-energy-monitor
IPEM PiHat and IPEM PiHat Lite | Raspberry Pi ATM90E36 IoT Power Energy Monitor SDK
https://github.com/ditronix/ipem-pihat-iot-power-energy-monitor
Last synced: about 1 month ago
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IPEM PiHat and IPEM PiHat Lite | Raspberry Pi ATM90E36 IoT Power Energy Monitor SDK
- Host: GitHub
- URL: https://github.com/ditronix/ipem-pihat-iot-power-energy-monitor
- Owner: DitroniX
- License: gpl-3.0
- Created: 2024-11-14T12:41:04.000Z (6 months ago)
- Default Branch: main
- Last Pushed: 2025-04-08T18:10:50.000Z (about 1 month ago)
- Last Synced: 2025-04-09T21:53:06.665Z (about 1 month ago)
- Language: C
- Homepage: https://ditronix.net
- Size: 249 MB
- Stars: 7
- Watchers: 2
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
**IPEM Raspberry Pi PiHat ATM90E36 IoT Power Energy Monitor SDK** -
- **Super exciting news that my first [KickStarter](https://www.kickstarter.com/projects/ditronix/ipem-raspberry-pihat-iot-atm90-mains-power-energy-monitor) project has been launched.**
- [**Please feel free to take a moment and check it out!**]([url](https://www.kickstarter.com/projects/ditronix/ipem-raspberry-pihat-iot-atm90-mains-power-energy-monitor))
Based on the popular https://github.com/DitroniX/IPEM-IoT-Power-Energy-Monitor, the **IPEM PiHat** takes both IPEC and IPEM to another level via the Raspberry Pi.
[](https://www.kickstarter.com/projects/ditronix/ipem-raspberry-pihat-iot-atm90-mains-power-energy-monitor?ref=3vw3ge)
**Board Addressing**
The IPEM board uses SPI as a means of data communication, with an I2C expander to provide individual GPIO functionality to each ATM90E36.
Following design thoughts prior to finalising the production board, the following improvements have been added.
Change from OneWire to using a two wire I2C Expander. This provides 64 individual addresses, so essentially 64 stacked IPEM's.
The design improvement is a much more sensible route as you now assign a fixed address to each board using a DIP switch. This also makes it so much easier is field and with software support and configuration.
The unique design will allow up to a max of:
* 1 x IPEM PiHat + 63 x IPEM PiHat Lite's
or
* 64 x IPEM PiHat Lite's
**CT Clamps and Rogowski Current Transformer**
The original IPEM design provided for using the YHDC SCT-013 100A-50mA.
The updated IPEM PiHat and IPEM PiHat Lite production design, now allows for either use of CT Clamps, and/or Rogowski Current Transformers. This allows for a wider spectrum of current ranges and cable sizes to be monitored.
**The Board**
IPEM Raspberry Pi PiHat ATM90E36 Energy Monitor
IPEM Raspberry Pi PiHat ATM90E36 Energy Monitor
The IPEM Raspberry Pi PiHat ATM90E36 IoT Power Energy Monitor SDK contains all of the IPEM functionality, except the ESP32, but includes the ATM90E36. It then adds the ADC and DAC functionality of IPEC and IPEX.
The ATM90E36 contains all of the ATM90E32 functions plus additional functionality, and so will be the main release.
**Overview**
**Mains Monitoring Options**
All my boards are designed to be safe and easy to use - with NO live parts or dangerous exposed voltages.
The IPEM and IPEC series are capable of monitoring a number of variations in energy monitoring systems.
- Single phase (Home, Office etc.)
- Multiple Single Phases. (Different circuits or home/office rings, Inverters etc.)
- Dual Phase (2 x Live -Typically for USA. i.e. 2 x 110V)
- Three Phase Star (3 x Live and 1 x Neutral) [Needs ATM90E36 version]
- Three Phase Delta (3 x Live)
Top Level **PREVIEW** Features:
The **IPEM Raspberry Pi PiHat IoT Mains Power Energy Monitor** board main features:
- **Compact** and **Flexible Design** SDK Board
- All connections are **low voltage**, for **safe operation**
- **Easy to interface**
- _Designed to fit on a Raspberry Pi
- **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
- Auto DMA selection opton via GPIO
- **24C64** EEPROM
- Parameter Settings
- Logging
- **MCP4728** DAC
- 12bit I2C DAC
- Four Independent Buffered Output Channels
- Configured for Default DAC Out, or Modulated (Example MPPT)
- Configurable Solder Pads
- On-Board DAC EEPROM (For DAC Codes and Addressing)
- Can be configured to drive DAC based on CT Clamp Current / Power
- **ADS1115** ADC
- 16bit I2C DAC
- **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
- On Board **NTC** (Temperature)
- **Isolated Outputs**
- Two Relays for Isolated NC or NO outputs
- Max 2A 30V DC
- User **Programmable Button**
- **RGB Status LED**
- User Configurable
- **Power LED**
- On 3V3
- **ATM CT LEDs**
- CF1 - Active
- CF2 - ReActive
- CF3 - Fundamental
- CF4 - Harmonic
- **PCB** designed the same size as a Raspberry Pi.
- Also allows for the optional OLED display to be included, or not.
- Size** 85 mm x 55 mm
------------
**In The Box**
Details to follow.
You will need to provide a CT Current Clamp. Ideally YHDC SCT-013-000, or a Rogowski Current Transformer.
All test code is OPEN SOURCE and although is is not intended for real world use, it may be freely used, or modified as needed. It is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
## **Purchase**
[](https://www.ebay.co.uk/usr/ditronixuk)
Our STEM SDK boards and accessories are available from our online shops on [eBay](https://www.ebay.co.uk/usr/ditronixuk)
## **Further Information**
Additional information, and other technical details on this project, maybe found in the related repository pages.
**Repository Folders**
- **Code** *(Code examples for Arduino IDE and PlatformIO)*
- **Datasheets and Information** *(Component Datasheets, Schematics, Board Layouts, Photos, Technical Documentation)*
- **Certification** *(Related Repository Project or Part, Certification Information)*
**Repository Tabs**
- **Wiki** *(Related Repository Wiki pages and Technical User Information)*
- **Discussions** *(Related Repository User Discussion Forum)*
- **Issues** *(Related Repository Technical Issues and Fixes)*
***
We value our Customers, Users of our designs and STEM Communities, all over the World . Should you have any other questions, or feedback to share to others, please feel free to:
* Visit the related [Project](https://github.com/DitroniX?tab=repositories) *plus the related* **Discussions** and **Wiki** Pages. See tab in each separate repository.
* **Project Community Information** can be found at https://www.hackster.io/DitroniX
* [DitroniX.net Website - Contact Us](https://ditronix.net/contact/)
* **Twitter**: [https://twitter.com/DitroniX](https://twitter.com/DitroniX)
* [Supporting the STEM Projects - BuyMeACoffee](https://www.buymeacoffee.com/DitroniX)
* **LinkedIN**: [https://www.linkedin.com/in/g8puo/](https://www.linkedin.com/in/g8puo/)
***Dave Williams, Maidstone, UK.***
Electronics Engineer | Software Developer | R&D Support | RF Engineering | Product Certification and Testing | STEM Ambassador
## STEM
**Supporting [STEM Learning](https://www.stem.org.uk/)**
Life is one long exciting learning curve, help others by setting the seed to knowledge.
