Building My Super DoorBell – Part 1 Integrating Home Assistant Notifications via Amazon Alexa with TTS and Alexa Media Player

Note– Amazon Alexa now requires 2FA App Integration. This tutorial is accurate at the time of authoring (January 2024). If you have Google powered voice assistants, this post could be applied to Google NEST by using Onju Voice My humble doorbell has been a journey, yes it still rings a traditional doorbell chime (16V AC) … Read more

Controlling Bathroom Exhaust Fans With Honeywell Humidity Sensors

Automation and technology are amazing, but is automation in your mind the basics, such as lighting, you might ask Alexa or Google Assistant to turn on something. These are science experiments, purely because it involves an utterance, the magic in automation is when it ‘just’ works. No asking, just like Event Driven Architecture, it happens … Read more

Creating Interlocks In Code (C++) For Controlling Relays In the Real World

[RELEASING IN MAY 2023] Work In progress Are you familiar with an interlocks? Interlocking is a safety measure designed to prevent signals and switches from being changed in an improper sequence. Interlocks are a staple of our modern lives, they exist in places you would or perhaps may not expect. In their most basic form, an interlock … Read more

Making Data Driven Decisions With A PV Array, Home Assistant and MQTT

I have been always wanting to add a Solar PV array to my house and recently, it made sense and I purchased a modest (7.5kw) system for my house. It has been as much of an IT journey of integration and extracting value from disparate systems has it been of reducing my carbon footprint. When … Read more

Bridge Building – Mosquitto MQTT to Azure IOT Using Paho MQTT and the Azure IOT SDK’s

I have been on a journey to explore Azure IoT and push the thousands of events that flow through my local MQTT broker (Mosquitto) in to Azure IOT. From direct connection to Azure IOT-Hub (via MQTT and SAS tokens) through to Azure IOT-Edge running locally with MQTT. I have been able to achieve my goals … Read more

Replacing Mosquitto with Azure IOT Edge

In a previous post, I spoke about using Mosquitto client tools to publish to Azure IOT Hub, that was the beginning and I am on a journey in my new role to explore Azure IoT and understand the art of the possible. What is possible, I guess we will find out. Who has the longest … Read more

Publishing & Subscribing to MQTT Topics Using Mosquitto Client Tools & Microsoft Azure IoT Hub

Public cloud brings a paradigm shift in what can be done, the art of the possible is possible and in the context of this post, I am planning to replicate ~250ish MQTT topics running in a Mosquitto MQTT container in to Azure IoT Hub. From ML (Machine Learning) through to anomaly detection and everything in … Read more

Installation and Integration of a Hydreon RG-11 Optical Rain Sensor with a PLC & HomeAssistant

This is an article I have been meaning to write for some time. I guess I haven’t as this sensor has been something that has just worked out of the box and hasn’t skipped a beat in almost 5 years. I use OpenSprinkler to drive my irrigation and I will soon share how I integrate … Read more

A Journey in to MQTT With Roller Shutters, Mosquitto, HomeAssistant & Low Powered Micro-Controllers

Its been a journey over the last 10 years in driving heat out of the top story of my house. From double glazing, heavy drapes and window film, keeping temperatures cool and the house dark in summer has been a challenge for our north facing windows (the master bedroom). Near 6 months ago I decided … Read more

Controlling A PLC With Amazon Alexa

I recently purchased an Amazon Echo which is a hands-free speaker you control with your voice. Amazon Echo connects to the Alexa Voice Service to play music, provide information, news, sports scores, weather, and more—instantly. It’s the ‘more’ this article will explore. Unlike other services, Alexa exposes itself via the Alexa Skills Kit According to … Read more