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)
10
Afterword

Technical requirements

We are going to need the following components for this project:

  • An Arduino Nano 33 IoT
  • An HC-SR04 sensor
  • An external power supply module
  • HS420561K 4-Digit 7-segment display common cathode
  • A MAX7219 or MAX7221 serial input/output common-cathode display driver
  • One 10,000 Ohm resistor
  • One 1,000 Ohm resistor
  • One 2,000 Ohm resistor
  • 2 breadboards
  • Jumper wire cables

Most of the components are part of the so-called Arduino Starter Kit. If you do not have such a set, they can be acquired at any electronics supply store.

You can find the code for this chapter on GitHub at https://github.com/PacktPublishing/Creative-DIY-Microcontroller-Projects-with-TinyGo-and-WebAssembly/tree/master/Chapter05

The Code in Action video for the chapter can be found here: https://bit.ly/3e2IYgG