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How to Create an RGB LED Display for Raspberry Pi?

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  • How to Create an RGB LED Display for Raspberry Pi?

    I'm relatively new to hardware. I have some basic concepts down and I've only done some basic circuitry, but I really want to jump into the deep end - it's how I learn best. I'm not sure how simple this project is, but I like a good challenge.

    Essentially I want to build an RGB LED display, perhaps 32 columns of 18 LED's (a total of 576 bulbs). I'm hoping to control the display by sending data through a program I'll create on my Raspberry Pi (512 MB, model B) - in other words, I want to control each LED and not simply feed it a video stream.

    I need to be able to control each individual LED and it's brightness. I'm looking at buying the "RL5-RGB-C-2 Clear TriColor" LED's, where each bulb has three inputs for red, green, and blue respectively.

    I have found some basic tutorials on creating single colour LED displays, but none that show me how to create an RGB display of this size using the GPIO (or any other bus, for that matter) on the Raspberry Pi, as well as allowing me to control brightness of each LED.

    I'm just wondering where I should start or if anybody could point me in the right direction. I'm also open to suggestions regarding the Arduino.

  • #2
    why not get some ws2812, you wont have enough gpio to drive 500 leds unless you use tons of expanders or shift registers, ws2812 uses only 1 gpio pin for all leds, however its better to use an arduino to drive them rather than a pi

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    • #3
      Or, just use the Diablo powered display to do it without anything else. Yep, it supports NeoPixels.

      Just what are you expecting to use the leds for?
      Mark

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