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Creative DIY Microcontroller Projects with TinyGo and WebAssembly
book

Creative DIY Microcontroller Projects with TinyGo and WebAssembly

by Tobias Theel
May 2021
Intermediate to advanced content levelIntermediate to advanced
322 pages
5h 24m
English
Packt Publishing
Content preview from Creative DIY Microcontroller Projects with TinyGo and WebAssembly

Chapter 3: Building a Safety Lock Using a Keypad

We gained basic knowledge of using LEDs, GPIO ports, and resistors in the last chapter. We also learned how to handle input and output. In this chapter, we are going to build a safety lock using a keypad. We will be able to input a passcode in the keypad that triggers a servomotor to unlock a lock. This will be achieved by splitting up the project into individual steps and putting it all together at the end of the chapter.

After working through this chapter, we will know how to write information to the serial port and how to monitor this information. This is a great way to easily debug an application. Then, we are going to write our own driver for a 4x4 keypad, which can be used as passcode input ...

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Publisher Resources

ISBN: 9781800560208Supplemental Content