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.
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.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — “Inside One of the World’s Most Secretive iPhone Factories”
Wearables — It’s not cheating
Electronics — Blown transistor?
Biohacking — “1 Minute of All-Out Exercise May Have Benefits of 45 Minutes of Moderate Exertion”
No comments yet.
Sorry, the comment form is closed at this time.