Electronoobs shows you more or less how i2c, UART and SPI serial communications work with a few examples.

Electronoobs shows you more or less how i2c, UART and SPI serial communications work with a few examples.
HARRY LE shows us how he built out a very cool LED light setup with an Arduino Uno
Source code and schematic at https://github.com/VectStudio/LED_CUBE