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


28,881

112

13

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

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: Materials

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

Step 2: 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

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

Arduino Contest 2016

Participated in the
Arduino Contest 2016

First Time Authors Contest 2016

Participated in the
First Time Authors Contest 2016

Be the First to Share

    Recommendations

    • Made with Math Contest

      Made with Math Contest
    • Multi-Discipline Contest

      Multi-Discipline Contest
    • Robotics Contest

      Robotics Contest

    13 Discussions

    0
    None
    roybloor1

    Question 9 months ago on Step 1

    Hi, I want to use this code on a preconstructed 4 module display, but because it's pre made and joined together the modules are orientated the wrong way, I don't want to split them and arrange the modules accordingly (its a nice neat module as it stands at the moment) , what would i need to change in the code to get the message to run left to right rather than up down?
    Hope that makes sense
    Thanks

    0
    None
    ADWITIYAU

    Question 1 year ago

    help me i'm a beginner in arduino. i want to run 10 displays, but this code will run for 6 displays only onward displays it does not work. please suggest me how to run all 10 displays. somebody can tell me correct code?.

    thank you

    P_20180901_180003.jpg
    0
    None
    AncS

    1 year ago on Step 5

    Pls my led matrix display is inverting the letters it I displaying. How do I fix that

    Sir, Iam newbe and today I try to make it by following yoour steps, but my text is running on 4 rows and coloumn. not likes yours which running on 1 row and 4 coloumns. Please help me to solve this case. For the shift direction is correct. need your advice please. Thanks...

    IMG20180505220526.jpg
    1 reply
    0
    None
    Chrome98wachid_elektronik

    Reply 1 year ago

    Did you ever get this to work properly? The instructable uses 4 modules that are each turned 90deg from our inline 4 modules. Typically I can find the 8x32 code somewhere in the script and reverse it to 32x8 (or vice versa) but I can't even find where that is happening exactly.

    0
    None
    Alan Hodgson

    1 year ago

    How do I alter the code so it only runs once after I press a button

    0
    None
    DennisB36

    1 year ago

    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.)

    0
    None
    MalcolmO5

    2 years ago

    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?

    0
    None
    ThirdEarthDesign

    2 years ago

    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.

    0
    None
    Syoshida12

    2 years ago

    Great work! impressed.

    0
    None

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

    0
    None
    braiden15

    2 years ago

    Great work, especially for a beginer like your self!