30V, 24x4 Dot Matrix LED Driver for Signage and Gaming Machines The IS31FL3748 is a new class of LED drivers designed for creating extremely bright and colorful LED-based signage board displays.

By using a 5×15 LED matrix screen, a single micro controller, a number of resistors, switches, and other parts, [tomward] has put together one very slick business card that’s sure to draw ...