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 how to write messages to the serial port and how to configure PuTTy to monitor messages on the serial port. We have then used this knowledge to output keypresses on a keypad that we controlled using a driver that we wrote. During that procedure, we learned how to write drivers for devices that currently have no official drivers and also learned about the contribution process of the driver's repository from TinyGo.

Then we learned how to control a servomotor and wrote a library to do so. As the last step, we combined everything we learned in this chapter to build a safety lock that accepts a passcode to open up the lock. This knowledge can be very useful if you ever want to build a door lock or a flight control system, where you need to control servomotors. The keypad can also be used as a gamepad, where you use the keys as input. As a bonus, we also wrote two drivers that we can reuse in all upcoming projects after finishing the book...