Driving LED Displays With Arduino And MAX7219

The Arduino platform is great for making LEDs blink and driving small displays, but what happens when you need to display more complex information? For Project ColorTyme, I need to drive 6x 14-segment "starburst" style alphanumeric LED displays, but pins are at a premium. To solve the problem, we'll incorporate the MAX7219 LED display driver; however, it's an imperfect solution: The displays I'm using are common-anode while the MAX7219 is a common-cathode driver. In this video, we'll walk through wiring a 14-segment display to the Arduino, then wiring the MAX7219 to drive in common-anode mode while adjusting the code so everything comes out correctly.

Get the show notes including the sketch, library, and more: http://airbornesurfer.com/driving-led-displays-with-arduino-max7219

Check out the rest of the project: http://www.element14.com/presents Check out more of Anders's music here: https://www.youtube.com/user/HariboOSX

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