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@tomasmcguinness

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  • ModBus ESP32 Adapter – A tiny disaster (but it works!)

    Aug 14, 2026

    ·

    Electronics, ESP-IDF, ESP32-C6, PCB, Personal Project
    ModBus ESP32 Adapter – A tiny disaster (but it works!)
  • Trying hot plate SMD soldering on my custom PCB

    It been a while since I looked at the custom PCB I designed for my Zigbee Flow and Return sensor. When I parked the project, I had just received some new boards from Aisler, with support for Pogo Pins. You see, the XIAO nRF52840 board I was using had the… Read ⇢

    Trying hot plate SMD soldering on my custom PCB
  • Creating a Matter Controller with matter.js

    Whilst I’m still chipping away at my .Net Matter Controller code (it’s really hard), I wanted to continue exploring the Energy Management capabilities of Matter. If I wait until I’ve fixed all the issues in my implementation, Matter will be obsolete 🙂 To that end, I decided to have a… Read ⇢

    Creating a Matter Controller with matter.js
  • Giving hot plate de-soldering a try

    I had a go at desoldering some of my custom PCBs using a mini hot plate. 1st attempt saw me completely wreck the XIAO board. 2nd and 3rd attempts were much better! Read ⇢

    Giving hot plate de-soldering a try
  • Low power blinky on nRF52840-DK

    In this post I look at lowering the power consumption of the nRF Blinky sample when running on an nRF52840DK. Read ⇢

    Low power blinky on nRF52840-DK
  • Building a .Net Matter Controller – The Manual Pairing code

    I’m building my own .Net Matter Controller. I’m writing these posts as I go, figuring the stuff out and blogging how and what I’m doing. TL;DR; This post describes the manual pairing code and how I extract the discriminator and passcode values from it. The Manual Pairing Code There seems… Read ⇢

  • Matter – Tiny Dishwasher – Adding Phases

    I added Current Phase support to my Matter Dishwasher emulator. Read ⇢

    Matter – Tiny Dishwasher – Adding Phases
  • Building a Matter Dishwasher with an ESP32

    As part of my exploration of the Matter Protocol, I’m fascinated by the support for Smart Appliances. That’s things like Washing Machines, Dishwashers, EV chargers, water heaters etc. TL;DR; I implemented a Matter Dishwasher emulator with hardware controls and an OLED display. It has an on/off button, allows the Program… Read ⇢

    Building a Matter Dishwasher with an ESP32
  • Building a .Net Matter Controller – Reading Descriptions

    I am building my own .Net Matter Controller. I’m writing these posts as I go, figuring the stuff out and blogging how and what I’m doing. In my previous post, I got my controller to the point where it would connect to a single commissioned Node when it started. I… Read ⇢

  • Building a .Net Matter Controller – Simple Reconnection

    In this post I reach the 0.1 milestone for my .Net Matter Controller having successfully commissioned a device! Read ⇢

    Building a .Net Matter Controller – Simple Reconnection
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About the BLOG

Welcome to my blog. It’s a jumble of all the things that take my interest. Follow along as I explore smart home technology, home heating and various bits of DIY.

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