Kevin Darrah | 7 Segment Displays & Arduino the EASY way! with MAX7219 Driver @Kevindarrah | Uploaded February 2017 | Updated October 2024, 23 hours ago.
I've got a project I'm working on where I need to drive a ton of 7 Segment displays, so instead of dealing with all of the multiplexing myself, like I normally would, I decided to take the easy route and go with a dedicated LED driver (MAX7219). It runs the whole show and I'll explain how to work with it in this video.

Datasheet: datasheets.maximintegrated.com/en/ds/MAX7219-MAX7221.pdf

The other way I've done it explained here: youtube.com/watch?v=Ne4Wv1kUP8w

The CODE is here: kevindarrah.com/download/arduino_code/MAX7219_DEMO.ino

Wiki for the 328 Board: kevindarrah.com/wiki/index.php?title=328Board

Check out my Tindie store (trigBoard is available) tindie.com/stores/kdcircuits

Thanks to all the Patrons for dropping a few bucks in the tip jar to help make these videos happen!
patreon.com/kdarrah

Twitter: twitter.com/KDcircuits

For inquiries or design services:
kdcircuits.com