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@tomasmcguinness

@tomasmcguinness

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  • My Heat Pump Installation – Part 1

    Aug 18, 2026

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    Heat Pump
    My Heat Pump Installation – Part 1
  • Modelling a heat pump’s energy consumption

    In this post I build a very simple Heat Pump machine learning model using data from HeatPumpMonitor.org Read ⇢

    Modelling a heat pump’s energy consumption
  • Building a .Net Matter Controller – Adding New Nodes

    In this post I try to add nodes to my .Net Matter Controller. Read ⇢

    Building a .Net Matter Controller – Adding New Nodes
  • Testing my HolyIoT nRF54L15DK

    I test out my HolyIoT nRF54L15 DevKit that I got from AliExpress Read ⇢

    Testing my HolyIoT nRF54L15DK
  • Matter – low power on an ESP32-H2 SuperMini

    In this post, I have a go at reducing power consumption on a ESP32-H2 SuperMini board. Read ⇢

    Matter – low power on an ESP32-H2 SuperMini
  • Building a simple Matter Device Energy Manager

    In this post I use the Matter Device Energy Management cluster to create my own Manager. I created it using MatterJS. It explores how power forecasting works in Matter and implements a simple optimisation mechanism. Read ⇢

    Building a simple Matter Device Energy Manager
  • Fixing the RESOURCE_EXHAUSTED error in the energy forecast

    In this post I try to solve the issues I saw with the Energy Forecast in my Tiny Dishwasher project. Read ⇢

    Fixing the RESOURCE_EXHAUSTED error in the energy forecast
  • Zigbee – (Not) Running my Dual Temperature sensor on a ProMicro nRF52840

    I got back from my holidays today and found that my order of Promicro nRF52840 boards from Aliexpress had arrived! I was trying out these Promicro boards because the battery terminals are available via the header pins. The XIAO boards I was orignally hoping to use worked great, but the… Read ⇢

    Zigbee – (Not) Running my Dual Temperature sensor on a ProMicro nRF52840
  • ESP32 – Modbus interface with an SDM120M

    In this post, I explore how to setup an SDM120M energy meter with an ESP32. The SDM120M is a DIN mounted energy monitor, which can work with currents up to 42A. My goal is to use one with my upcoming heat pump installation, as part of my monitoring plans. Ultimately,… Read ⇢

    ESP32 – Modbus interface with an SDM120M
  • Matter – Tiny Dishwasher – Adding Energy Forecast

    If you read this blog or watch my YouTube channel, you’ll know that I recently built a Tiny Dishwasher. One that emulates a Matter Smart Appliance. I started that little project to learn more about the Matter smart home protocol. More specifically, the Energy Management parts of the Matter protocol.… Read ⇢

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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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@tomasmcguinness

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