Book Image

Creative DIY Microcontroller Projects with TinyGo and WebAssembly

By : Tobias Theel
Book Image

Creative DIY Microcontroller Projects with TinyGo and WebAssembly

By: Tobias Theel

Overview of this book

While often considered a fast and compact programming language, Go usually creates large executables that are difficult to run on low-memory or low-powered devices such as microcontrollers or IoT. TinyGo is a new compiler that allows developers to compile their programs for such low-powered devices. As TinyGo supports all the standard features of the Go programming language, you won't have to tweak the code to fit on the microcontroller. This book is a hands-on guide packed full of interesting DIY projects that will show you how to build embedded applications. You will learn how to program sensors and work with microcontrollers such as Arduino UNO and Arduino Nano IoT 33. The chapters that follow will show you how to develop multiple real-world embedded projects using a variety of popular devices such as LEDs, 7-segment displays, and timers. Next, you will progress to build interactive prototypes such as a traffic lights system, touchless hand wash timer, and more. As you advance, you'll create an IoT prototype of a weather alert system and display those alerts on the TinyGo WASM dashboard. Finally, you will build a home automation project that displays stats on the TinyGo WASM dashboard. By the end of this microcontroller book, you will be equipped with the skills you need to build real-world embedded projects using the power of TinyGo.
Table of Contents (13 chapters)

Understanding what TinyGo is

TinyGo is an independently written compiler, with its own runtime implementation. It is intended to be used for microcontroller programming, WebAssembly (WASM), and CLI tools. TinyGo heavily makes use of the LLVM infrastructure to optimize and compile code to binaries that a microcontroller can understand.

The first release of TinyGo (v0.1) was published on February 1, 2019 on GitHub. Since then, the project has quickly implemented lots of features and never stopped adding support for more microcontrollers, sensors, displays, and other devices.

On February 2, 2020, TinyGo announced that it is now officially a Google-sponsored project. This was a big step for the complete project.

How TinyGo works

The TinyGo compiler uses a different set of steps than other languages to transform Go source code to machine code. We will not be going into the details though, but let's take a look at an overview of the compiler pipeline:

  1. We write the...