Technology and Magic
With a dash of skepticism.

Ensuring IoT Hub Treats Messages as JSON: A Step-by-Step Guide

IoT Hub receives message bodies as byte arrays, regardless of whether it's JSON format or not. To make routing work, you need to add some metadata!

My edgeHub is Missing! - A Tale of Uncovering the Secrets of Azure IoT Edge

A fresh IoT Edge installation and your edgeHub just won't run? Check this first.

IoT Edge AI: Top Single-Board Computers for Custom Vision

So, you're looking to run Custom Vision on IoT Edge and need a single-board computer (SBC) that can keep up with the workload?

Rendering STL in Markdown on GitHub

Not only can you preview STL files in GitHub, but did you know you can also render a 3D view for an STL in Markdown?

Add An Access Policy To Azure Key Vault In Bicep

How to add an access policy to Azure Keyvault from a different Bicep module.

End To End Azure Digital Twins For Smart Buildings

Can you build a platform that goes from device telemetry to historical insights, all in one day? Here's how we did it.

Connect To IoT Hub With Managed Identity

Stop using shared access policies to connect to IoT Hub, and start using managed identities.

Adding Arrays To Azure IoT Hub Device Twins

Can you add arrays to your device twin in Azure IoT Hub? This example shows how to do it with the REST API, and use the twins with the C# SDK.

Authenticating to Azure AD with JMeter without plugins

How can you test an application when it requires Azure AD authentication? Use a client secret and ID in JMeter to load test your secure applications, without any plugins!

I Actually Built A Worse Model Uploader

Eating a slice of humble pie, while deploying Azure Digital Twins models at scale.

Things I Learned While Building A Better Model Uploader

Here are a few things I learned about Azure Digital Twins and DTDL while building a new model uploader, and why I stopped trying to parse DTDL myself.

Building A New Model Uploader For Azure Digital Twins

By uploading Azure Digital Twin models in batches, you can greatly reduce the number of API calls.

Azure Feet for Azure Percept

My 3D printer is always solving problems nobody has. Today: Giving the Azure Percept some feet.

No Code Notifications With IoT Central And Logic Apps

Receiving a notification from a device every time a new StackOverflow question is asked, without writing any code? I present you: The Matt Signal.

Back to The Office with Azure Digital Twins - Part 2

Getting The Office back to the office with Azure Digital Twins. In this post I'm creating the graph with the models from part 1.

Back to The Office with Azure Digital Twins - Part 1

Getting The Office back to the office with Azure Digital Twins. In this post, we will explore the DTDL models that make up the office.

Integrating A Hydroponics Installation in IoT Central

Receiving telemetry from a simple hydroponics set up in IoT Central using an ESP32, Arduino and some sensors.

The Fastest Way To Prototype Anything On Azure IoT Edge

Connecting Azure IoT Central and Node-Red on Raspberry Pi – Part 2

How to connect your Raspberry Pi with Node-Red to Azure IoT Central

Connecting Azure IoT Central and Node-Red on Raspberry Pi – Part 1

How to connect your Raspberry Pi with Node-Red to Azure IoT Central