An arduino sketch that sends a looping message to a MAX7219 LED Matrix display module. Because of the high speed at which the message prints to the matrix, it can be used as a tool for writing messages in long exposure photography.
##Setting Up the Arduino and MAX7219 Matrix
###Components you'll need:
- Arduino Uno board
- 5 jumper wires (female/male)
- MAX7219 Red Dot Matrix Display Module
- Arduino USB cable
###Connecting the Components
- LED matrix connections to arduino:
- VCC to 5V
- GND to GND
- DIN to Digital 2
- CS to Digital 4
- CLK to Digital 3
- Connect the USB cable from the arduino to your computer.
###Setting up the Arduino Sketch
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Download the Arduino software if you have not already: http://arduino.cc/en/Main/Software
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Download and uncompress a ZIP file of this repo.
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Look for the libraries folder inside the folder where you installed the Arduino software. Make sure you close all the open windows of Arduino IDE when you do this.
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Copy the uncompressed repo folder, delete the README.md file within, and place it inside the libraries folder.
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Open the Arduino software again. Go to File > Examples > Arduino_LED_matrix_sketch
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Under the Tools menu make sure the correct Board and Serial Port are selected.
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Verify and upload the sketch to your arduino to see the text print to your LED Matrix!
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Experiment with long exposure photography by moving the matrix to write messages in your photos.
