Description: In this project I did a Christmas jumper with rgb LEDs, this can also be a creative clothing project or whatever ...

Chapter 1, page 11 This code is basic but allows the reader to gain insight into key elements for several other projects in this book. It combines two pieces of code that are listed in the examples ...

Arduino library for the I2C LCD display, typical 20x4 characters. The library is inspired by the excellent New-LiquidCrystal library by F. Malpartida. Therefore the interface is kept quite identical, ...

Now start to support BL616/8 chips, other chips to be developed later. The first version can be compiled and run, but the repository is still in the process of development, most of the APIs are not ...

Abstract: Personal Identification Numbers (PINs) are a cornerstone of modern authentication systems, yet they remain vulnerable to hacking and unauthorized access. This paper surveys a novel system ...