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

Summary

In this chapter, we learned what the I2C interface is and how to use it. We also learned how to use a 16x02 LCD display, how to display static text, how to display animations, and how to build a little CLI that can receive commands through UART and control the display.

Then, we gained a deeper understanding of the SPI interface and used it to control a 1.8" TFT display. We drew some basic shapes and then used TinyDraw to draw circles and rectangles and TinyFont to draw text. At this point, we have used all the important interfaces of a microcontroller, so we now have the skills to connect and control any device we need in future projects.

At the end of this chapter, we used the knowledge we'd gained in this chapter to build a simple game that is controlled by one button and is displayed on the 1.8" TFT display.

In the next chapter, we are going to learn how build a WebAssembly page using TinyGo, as well as how to use the Wi-Fi chip that is built into...