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)


We have learned how to build a fully functional traffic lights system with pedestrian lights controlled by a button. We achieved this by building each part of the project separately and assembling it all together at the end.

We learned how to use breadboards, how the color codes on resistors work, why we use resistors when controlling LEDs, and how external LEDs are assembled. Also, we learned how to use push buttons, how to prevent floating signals using pullup resistors, and how to utilize goroutines in TinyGo.

In the next chapter, we are going to learn how to read input from a 4x4 keypad and how to control a servo motor. We are going to utilize this knowledge to build a safety lock that opens when the correct passcode is entered.