LED Messaging With Arduino
In this project, you'll use an 8x8 LED matrix to write a scrolling message.
This project is a simple version of another instructable by CarterW16 using only one LED matrix. Check out that project to see how to link more together.
To get started you'll need:
Connecting to Power
Use a jumper wire to connect the “5v” power output on the microcontroller to the first hole in the positive line on the long edge of your breadboard.
Connecting to Ground
Use a jumper wire to connect the GND power output on the microcontroller to the negative line on the long edge of your breadboard.
Prepare the LED Matrix
Place the LED matrix near your Arduino to prepare to hook it up.
Connect VCC
Connect the VCC pin on the LED matrix to the long positive row on your breadboard using a male-female jumper wire.
Connect GND
Use a male-female jumper wire to connect the GND pin on the LED matrix to the long negative row on your breadboard.
Connect DIN
Connect the pin marked “DIN” on the LED matrix to pin 12 on your Arduino using a male-female jumper wire.
Connect CS
Connect the “CS” pin on the LED matrix to pin 11 on the Arduino.
Some of the LED matrix boards have the CLK pin in a different location, so be sure to read the small letters on your matrix to be sure you are making the right connection.
Connect CLK
Connect the “CLK” pin on the LED matrix to pin 10 on the Arduino.
Some of the LED matrix boards have the CLK pin in a different location, so be sure to read the small letters on your matrix to be sure you are making the right connection.
Get Your Code
Use the Arduino web editor to get the code.
You'll also need to download and install the MaxMatrix library.
Downloads
Watch Your Message Scroll!
