#103 8x8 LED Matrix LedControl

Test driving and LED matrix with the LedControl library

Here’s a demo of the matrix in action:

Notes

This is a test of the LedControl library to drive a 1088AS LED matrix with a MAX7219 Serial-Interfaced LED Display Driver chip.

See the MaxRawDemo project for details of the hardware and setup, and a test of driving the hardware directly with SPI.

Construction

The Sketch

See LedControlDemo.ino.

Credits and References

• “1PCS Free Shipping SCM MCU Control LED Display Module DIY Kit for Arduino MAX7219 Dot Matrix Module Microcontroller” (aliexpress seller listing)
  • Purchased for US$1.59 (Jun-2015)
  • No longer available from this seller
• LedControl library at GitHub
• LedControl Overview on the arduino playground
• MAX7219 datasheet
• 1088AS datasheet
• MAX72XX Hardware page on the Arduino playground
• Lab 15: scrolling test message on an LED dot-matrix display