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Adding Matter support to the OpenEnergyMonitor emonTx v4
As I continue to build my Matter based Home Energy Manager, I’m always looking for ways to get more power measurements into my system. As I currently have an Open Energy Monitor system installed, I started to wonder how I might add Matter support to is. The system I have… Read ⇢
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Matter Home Energy Manager – First Milestone!
It’s been a busy few weeks, but I’ve managed to make steady progress on my Matter based Home Energy Manager, and I’ve finally reached the first major milestone: Displaying & recoding my grid consumption! It has taken quite a bit of foundation writing and experimenting, but it’s starting to coalesce… Read ⇢
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Building a Matter Meter Reference Point device for testing
I’ve finally started making progress with my Matter based Energy Manager UI. With the help of Claude Code, I even had a nice animation, showing power flowing. I was getting a sense for the how it might all hang together. My original goal was to use data from my Solax… Read ⇢
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Building an ESP32 Matter Commissioner in SwiftUI
As part of my Home Energy Manager project, I realised that I would need a nice to connect my Matter devices to it. In Matter, adding a device is called commissioning and it’s typically done by scanning a QR code. The commissioner, in this case my Home Energy Manager, would… Read ⇢
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Integrating a Solax X1-G4 Inverter with Matter Protocol
In this post, I detail how I use Modbus TCP to read some basic information from my Solax X1-G4 inverter and expose it via the Matter smart home protocol. Why? Because ultimately, I want to expose my inverter via Matter, allowing me to add it to my Matter based home… Read ⇢
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Building a Mad Men inspired intercom – the failed first attempt!
Even since I started working from home, I had this mad idea of installing intercoms across my house. It was mostly inspired by watching (and re-watching) of the TV show Mad Men! All of the main characters had their own intercom for being buzzed or asking their secretary for coffee.… Read ⇢
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My first attempt at building an ESP32-H2-MINI-1 PCB didn’t go to plan!
This is the first ESP32 PCB I’ve designed. Hot on the heels of my nRF54L15 devkit, I decided to give the ESP32-H2-MINI-1 a go. I wanted to push myself, by designing something a little more complicated. This board featured the small ESP32-H2-MINI-1 module, two buttons, three LEDs and a USB-C… Read ⇢
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Assembling and flashing my custom nRF54L15 board
A few weeks ago, I designed a simple breakout board for the MinewSemi ME54B01 module. Whilst I had one of the DevKits, I wanted to go through the exercise of designing my own PCB, with a battery compartment. I used KiCad to do the schematic and PCB layout and after… Read ⇢
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ESP-Matter: On Network commissioning of an ESP32-S3-ETH
As I’m building out an ethernet based Matter device, I wanted to get something called On Network Commissioning up and running. In this post, I’ll explore what steps I need to take in order to enable it on a Waveshare ESP32-S3-ETH devkit. What is On-Network commissioning? When you commission a… Read ⇢
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