He ended up designing an 8 by 16 grid of LED’s that was turned into a game of Tetris. He arranged all 128 LED’s into the grid on a piece of perfboard.

LEDs. tetris 1 Articles Arduino Tetris On A Multiplexed LED Matrix January 21, 2015 by Rick Osgood 19 Comments ...

Kerger made the Tetris shirt by inserting an Arduino Uno, 4 AA batteries, and 128 LEDs into the garment. This is how the shirt works: First Kerger plugs the shirt into the Arduino unit.

This is tutorial number 1 from our series of Arduino tutorials and in this part I will talk about blinking an LED using the one already available on the Arduino Uno board or using an external LED to ...

This is an easy tutorial showing how you can control the brightness of an LED or adjust the speed of a DC fan using Arduino Board, a small BC547 transistor and a potentiometer.