I had a PC like this with a 2 digit display. LED segments were switched on or off by the Turbo switch and an array of diodes. Some of the segments were permanently wired on, no switching at all.

The 1K resistors are used for base current limiting, and the 390R resistors limits the operating current of the LED display segments. In the Arduino board, digital outputs from D2 to D8 are used to ...

Our project is infact an Arduino with Serially Interfaced MAX7219 Operates an 8X8 LED Matrix to display a heart pattern. The MAX7219 IC is a serial input/output common-cathode display driver that ...

I did an 11×132 display using the three 11×44 ARGB LED matrices that scrolls a lot more than 600 characters using an Arduino Nano. This is easy peasy piddly. Yeesh.

Arduino enthusiasts and makers in search of a new project to keep them busy, might be interested in this awesome split flap display that has been created by Instructables member JON-A-TRON.

MILPITAS, Calif., Aug. 01, 2022 (GLOBE NEWSWIRE) -- Lumissil Microsystems, a division of Integrated Silicon Solution, Inc. (ISSI), announced today the IS31FL3723, a new and improved Matrix LED ...