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)


In this chapter, we learned how to read sensor values using the ADC interface. We also learned how the ADC interface translates voltage to digital values, and then we utilized this knowledge to write the soil moisture sensor library.

We then wrote the water level sensor library by utilizing the knowledge we gathered in the first project of this chapter. Then we learned how to use a buzzer and wrote a very simple library that enables us to let a buzzer create warning sounds. After that, we learned how relays work and utilized this knowledge to control a pump using a library we wrote. At the end of this chapter, we put all the libraries in a single project and only had to add a small amount of control logic to build the automatic plant watering system.

In the next chapter, we are going to learn how to use supersonic sensors and how to control seven-segment displays.