![]() The HAT makes it easy to monitor the current, voltage or power usage of your device or circuit in each channel, and also monitor the voltage between both sides of the sampling resistor. I hope that by sharing my work you will find the same fascination and inspiration that I did.The Power Monitoring HAT is a 3-channel Current/Voltage/Power monitoring add-on for your Raspberry Pi. My forum post is here - and I think it serves as a great snapshot in time of the work that went into this project, along with discussions around the theory, design choices, and problems that came up in the process. After months of prototyping, tweaking, and massive amounts of learning, I have something I feel comfortable about sharing. What was initially a distant and challenging goal of mine at the beginning of 2020 turned into a seemingly huge undertaking that I didn't quite expect. I, too, had questions to ask throughout the project, and I was fortunate to stumble upon the OpenEnergyMonitor forum where I received guidance and support from generous electrical engineers. ![]() I was not impressed by any of the commercially available systems' "bang for the buck", and my searches for DIY projects found unanswered question after unanswered question. I wanted something I could watch in real time and see the effects of turning on various appliances/systems. First and foremost, the current data sources I have access to through my local energy utility company and solar PV inverter is not real time. I created this project for several reasons. The rest of the Introduction is not vitally important. (The sidebar on this page is for reference only and is in no particular order).įeel free to jump right in to the Getting Started section linked above. You can reference the steps in the following order to setup v0.2.0 of this project. If you are looking for documentation for v0.2.0 instead, this Wiki is it. Quick Start / Setup Guide Current documentation has been moved to Github Pages for a better experience! Any processes outlined in this project are taken at your own risk and I cannot be held liable for personal injury or property damage. I would recommend hiring a licensed electrician to install the CTs on your high voltage lines. This project (indirectly) interfaces with high voltage electrical systems and discusses working in and around a main electrical panel. Before proposing a quick-start path through this project, a disclaimer is required: Throughout the Wiki, there are discussions of electrical theory, optional suggestions, and important requirements that must be followed. This Wiki serves to document my project in depth so that others can adapt it to meet their own personal needs. I am offering DIY kits, presoldered PCBs, and a variety of current transformers to use with my project.
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