Arduino BlinkyBall Project




I frequent a blog called hackaday.com which featured a project by “Nikolai”, it was a 10cm LED ball that used shift registers. It seems like a really fun project to attempt but the cost of having the boards made & not having any experience sending eagle drawings to fab shops initially kept me from starting.  After some planning I decided to make my own boards by hand although because of that choice I would have to scale up the design dimension wise  & reduce the number of “slices”.

I started off with rectangular 2200 hole PCB’s from RadioShack and using cutting dykes I made half circle boards with a cutout in the center to to fit the processing module, lipo battery & charger.  Each slice is comprised of 2 – 8-bit shift registers, 16 LED’s & 16 resistors.   There are 8 slices in total so there are 128 LED’s, I use and Arduino nano 3.1 from makershed.com along with a lipo batter & charger available at sparkfun.com.  In order to fit these slices together to form a sphere I used circular PCB’s that I found at radioshack.  I used a dremel to cut slits every 45-degrees for each of the slices to slide into, the package comes with 3 sizes & 2 of each, I used the middle size.  I added a parallax mesmic 2125 accelerometer to the main board in the center to provide orientation to the sphere.  You charge the LiPo batter through a USB mini port located in the center, charging takes 1 Hour approximately and lasts for 45 minutes.

Arduino BlinkyBall Project




I wanted to thank Nikolai for the insperation & Null Space Labs HackerSpace for their take on the project.  I also wrote Charlie over there to get his input on the spiral animation & he was very nice & helpfull.  I am going to post all of the code that I used in case anyone is interested.  I wouldn’t say that I am the most proficient programmer & am still learning so be kind.

 Links: www.hackaday.com/2011/10/16/we-want-this-led-ball/          //Original           http://charliex2.wordpress.com/2012/02/11/the-blinky-ball-nullspacelabs/   //Null Space Labs In LA made a really cool version

Code:

int clockPin = 13; //IC Pin 11, Yellow Jumper
int dataPin = 11; //IC Pin 14, Blue Jumper
int latchPin = 8; //IC Pin 12, Green Jumper

const int xPin = 2;     // X output of the accelerometer
const int yPin = 3;     // Y output of the accelerometer

word patterns[176] = {
0b1100000000000000,
0b0110000000000000,
0b0011000000000000,
0b0001100000000000,
0b0000110000000000,
0b0000011000000000,
0b0000001100000000,
0b0000000110000000,
0b0000000011000000,
0b0000000001100000,
0b0000000000110000,
0b0000000000011000,
0b0000000000001100,
0b0000000000000110,
0b0000000000000011,
0b0000000000000001,

0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b1010111010001101,
0b0110101010011010,
0b0101010010011100,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
Arduino BlinkyBall Project circuit
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b1010111010001101,
0b0110101010011010,
0b0101010010011100,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,

 

For more detail: Arduino BlinkyBall Project




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