Sending Bytes to an 8x8 LED Matrix.

Using LEDs as Binary No. and 2 button switches to add or subtract 1 point per push.

This project detects changes in temperature based on your specifications, and then changes the color of a LED to the color of your choosing.

An arduiNOOB friendly tutorial for beginners on daisy-chaining.

A simple IR receiver setup controlling 2 LED by a relay board

Why you can blank, void setup()