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StarGate Eggbeater POV Display

Jason created the StarGate Eggbeater POV display out of Adafruit LPD8806 Addressable RGB LEDs.

  • A continuous strip of 142 LPD8806 RGB LEDs
  • The LED strips are controlled by an Arduino Mega 2560 microcontroller board
  • The LED strip is mounted inside of thick polyethylene tubing in a ring shape.
  • The poly tube-ring is mounted on a rod and bearing.
  • The rod goes through a MOOG slip ring that allows the 4 conductors necessary to power the LED strip. (We actually have 4 or so extra conductors available).
  • The rod is spun by a Bodine 1/4 HP DC Gearmotor, 250 RPM.

Check out more videos of the project here.

These LED strips are fun and glowy. There are 32 RGB LEDs per meter, and you can control each LED individually! Yes, that’s right, this is the digitally-addressable type of LED strip. You can set the color of each LED’s red, green and blue component with 7-bit PWM precision (so 21-bit color per pixel). The LEDs are controlled by shift-registers that are chained up down the strip so you can shorten or lengthen the strip. Only 2 digital output pins are required to send data down. The PWM is built into each chip so once you set the color you can stop talking to the strip and it will continue to PWM all the LEDs for you.

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