If you go beyond hobby tinkering and aim for reliable, maintainable software, you need tests. Hardware projects are no exception. In fact, the closer you get to IO, timing, and device state, the more you benefit from having a fast feedback loop and repeatable verification.
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In this beginner-friendly guide, you’ll learn how to control LEGO motors connected to a Raspberry Pi via the official Raspberry Pi Build HAT – using a simple, pure .NET application. We’ll use the Iot.Device.BuildHat NuGet package, which provides a friendly .NET API for the Build HAT. No Python required. We’ll also publish the app as a self-contained .NET 9 binary for linux-arm64 so you do not need to install .NET on the Raspberry Pi. This approach is easy to set up, reliable, and a great starting point for your own robotics projects.