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8X8X8 RGB LED CUBE ARDUINO KIT DRIVER
8X8X8 RGB LED CUBE ARDUINO KIT CODE
8X8X8 RGB LED CUBE ARDUINO KIT PLUS

You can balance the value of the resistors to produce a clean White colour within the current limits of the LED.īuilding a cube of this complexity is not to be taken on lightly. One key area to look out for is the overall White colour the LED emits when all the RGB colours are on. There are many calculators out there to help you choose the right value and it won't be the same for all the colours (Red will almost certainly have a different requirement from Green and Blue). While the breadboard is out it's a good time to test and validate the LED current limiting resistors you'll need to use. As an aside I didn't find a single defect and was very pleased with the quality of LED's.Ĭhoosing current limiting resistor values Once you get into the hang of pushing an LED into the breadboard, pressing the button, watching the LED flash through the colours it doesn't take too long to review all 512.

One LED would act as a common reference for all the others to ensure that all the LED's were of a common brightness. To simplify the approach I designed a little breadboard and a simple Arduino program which would drive two LED's Red>Green>Blue individually and then all on for White on the press of a button. The last thing you want to to find a dud LED in the middle of your cube so I set about testing each of the 512 LED's I would use. Whilst cheap I was a little concerned about quality. The design I chose uses 5mm Common Anode RGB LED's - so each LED has a Cathode (negative) wire for each of the three primary colours (Red/Green/Blue) and a single Anode (positive) wire that is common for each of the colours. eBay is your friend here and I bought 1000 from a Chinese supplier. Using Kevin's schematic, Nick's Cube structure, design a single PCB and develop a solution to both simplify the build and strengthen the cube itself.Ĩx8x8 = 512 RGB LEDs. SuperTech-IT has focused on simplifying the hardware side with a single PCB approach integrating and expanding both Kevin and Nick's programming approach with a focus on eliminating all wiring. I leveraged his cube design rather than Kevin's. Nick Schulze has built a wonderful example of note albeit with a simpler STP16 hardware approach and a 32bit chipKIT UNO.

All that wiring!!!! I've had some experience in designing PCB's in the past so aimed to build a single PCB to both host the significant number of components required and the cube itselfįurther searching revealed further cube designs from which I have taken other areas of inspiration.

8X8X8 RGB LED CUBE ARDUINO KIT PLUS

There must be a better way of building the cube itself plus there are over 2000 solder joints in a 8x8x8 RGB cub and if one were to fail/break in the middle it would be nigh on impossible to access and fix.

8X8X8 RGB LED CUBE ARDUINO KIT DRIVER

Whilst this requires a component rich hardware design it allows you to drive each LED hard without risking overloading a single driver chip managing 8 (or more) LEDs. I support Kevin's use of individual transistors to drive each of the 192 cathodes.

8X8X8 RGB LED CUBE ARDUINO KIT CODE

Kevin's detailed explanations of the Arduino code required for this complex programme simplified the coding side of the build.

However there were a couple of areas of his build I thought I could improve upon. So I was intrigued and then hooked when I found Kevin Darrah's great site with his detailed explanations and build video's. I've been playing around with electronics and Arduino's for a while now, including building a high amp switch controller for my car and a six lane Pinewood Derby Judge for our Scouts group.

"So, you want to build an 8x8x8 RGB LED Cube"