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 have learned about the technical specifications of the Arduino Nano 33 IoT and how to calculate the distance between an object and an ultrasonic distance sensor. Additionally, we learned how the sensor works internally and wrote a library for it. We also learned that unit testing is supported in TinyGo and wrote some tests for the ultrasonic distance sensor library. Then, we learned how to use a MAX7219 serial interfaced display driver to control a 7-segment display, and we wrote a library for the MAX7219 and the 7-segment display. At the end of this chapter, we put all of the drivers into a single project and only had to add a small amount of control logic to build a touchless handwash timer.

In the next chapter, we are going to learn how to use 16x02 LCD and ST7735 TFT displays.