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MBI5026 LED Matrix

The code is very verbose because I wanted to illustrate how the multiplexer works.

  • 74HC154 - pins 9, 10, 11, 12 (A0 to A3)
  • MBI5026 - pins 2, 3, 4 (data, clock, latch)

The refresh_rate variable sets how long the Arduino waits between each row in milliseconds. Keep it low to avoid flickering.

Full article is on my website.

Licensed under a Creative Commons Attribution-Non Commercial-Share Alike v3.0 license.