5x5 LED Matrix Animations: DON'T WORRY ABOUT 5 X 5 X 5 PROJECTS. focused on 25 leds 5 x 5. 25 LED's - I used blue 5mm LED's purchased on eBay 5 resistors - I used 100 ohm, but the exact value will depend on what LED's you use. I will explain how to calculate in the Wiring …