Introduction: Scrolling Text on a 8x8 LED Matrix Using an Arduino UNO

Picture of Scrolling Text on a 8x8 LED Matrix Using an Arduino UNO

This instructable will explain how to scroll text on an 8x8 matrix

Step 1: Materials

Picture of Materials
  • Arduino UNO
  • 1 or more MAX7219 matrix modules
  • 5 wires
  • Solderless breadboard

Step 2: Wiring

Picture of Wiring
  • Connect the 5V on the arduino to VCC on the matrix
  • Connect the GND to the GND
  • Connect input10 to CS
  • Connect input11 to DIN
  • Connect inpot13 to CLK

Step 3: Adding Another Matrix

Picture of Adding Another Matrix

Connect the VCC,GRD, ect., to create a daisy chain

Step 4: The Code

This is the code and library you'll need to run the matrix.

Step 5: Modifying the Code

Picture of Modifying the Code


DennisB36 (author)2017-12-27

This works great, except the text scrolls bottom to top on an 8x32 display instead of across(32 wide by 8 high) it. Am I doing something wrong? It's like 4 rows of text zipping by from the bottom to the top (top to bottom depending how your holding the display.)

MalcolmO5 (author)2017-08-25

I can only get this to work with up to 4 matrices no matter what I set #define maxDisplay as. What might I be doing wrong?

ThirdEarthDesign (author)2017-01-22

I'm sure I could find a use for something like this as I'm working on a smart home project. Excellent work., thanks for sharing.

Surajit Majumdar (author)2017-01-20

Nice built:)

Syoshida12 (author)2017-01-14

Great work! impressed.

DIY Hacks and How Tos (author)2017-01-14

Cool. This would be a good way to setup alerts for a smart house system.

braiden15 (author)2017-01-13

Great work, especially for a beginer like your self!

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