32 RGB LED Magic Ball - Featured on Hacked Gadgets

[THEELVISAQP]

INCREIBLE



[silverpizza100]

add some sound and lights dancing to the beat and I think you got a winner.

[elhacker77]

Excelente voy a buscar toda la informacion que pueda para ver si logro hacerlo y despues lo comparto con ustedes por la misma via para explicarles como lo hice

[MATADOR1KOBA]

Muy bueno !!

[relaxanimal]

oh,that's very interesting!!!

[roflball]

draw Cortana on that :P

[evilsandwich2]

8bit ftw

[TheOneAndOnlyFink]

Now imagine a movie theater where we sit inside of a huge spinning ring with the LED's spinning around us, tricking the mind into thinking we are really at the height we are viewing.

[ololh4xx]

"we" would die. Because of the centripetal force - your bones would be crushed to dust in a few seconds.

[TheOneAndOnlyFink]

I'm sorry for the lack of clarity. I meant sitting on seats on a stationary floor with a few giant arms of LED's spinning around that.

[Ben182010]

you got that idea from TV

[kevinandger]

you better patten that

[xato909]

good job!

[sonicfanboy598]

i want one lol

[HanZie82]

on the inside it is rotating and with the right frequence it looks standing still.

Some cheap handfans have it to but with letters and only one colour.

[citpelo]

how you built this?

[monimstarfox]

lol holography?

[LuigiMario404]

mario and luigi

[grex101]

cool but if you really want some intertainment w/o work then go watch some hd tv... =Þ

[MrHoggels]

wow that is cool

[riversidefb48]

so when is my TV going to look like this? lol

[supated2]

Haha.. looks like an 80s console or something man.

[doodahdom]

i saw one like tht a year ago in a mall but biger and it looks like a real tv not this it was so cool !!!

[ryansleis]

yes i often see jealous assholes like you badgering people minding others for your incapability!!!

[doodahdom]

fuck you

[ryansleis]

yes fuck my dog!!! good for nothing faggot!!!

[squarebob62]

I have a phone that works like this called an Info-Globe. BUT, this is way over the top.

Amazing...Good work. Funny too.

[xXJcam14Xx]

ar 0:49, was that homer simpson, or a duck. lol

[mavamaarten]

Whahaha That was Kenny from south park !

[billywill14]

it said my name in the begining!!!!!!!!!!

[mavamaarten]

Hi, William :p

[BradTheHobo]

Billy?

[totenkorpf]

como puedo hacer para comprar este producto

[illusionLord]

there is a turning led line which is programed to light in exact times to produce the images as it turns!Nice job man!

[ISRAELITECHURCH]

How does this work?

Thanks.

[i3iograffiti]

using hundreds of LEDs spaced out im guuessing you can make a really low resolutions 3D.

[rm8508]

its got a little projector in the middle i think not sure but

[cotton509]

add sound to it and add a camera to play live vid on it

[rudyiking]

This is a really cool concept. Now imagine if you could use smaller leds, little bit higher resolution. Please keep up the good work.

[caspice]

is this for real? it more look like a fake video

[doomsayer333]

looks like in the old days of computers (the '60s, '70s, 80's). I think this technology is going to be more nice, more cool, more important in the future xD keep working

[massive00x]

noob its boring

[TexZK]

SO COOOOOOOL!

[jabzilla21]

omg the killed kenny with the darts

you b@$t@rd$ lol

-jordan

[vova200]

is it possible to change pictures much faster and display video?

[agungk]

i made a version that could display realistic pictures/movies with stacked drivers, however balancing the spinning drum is very difficult. any idea of balancing method simple enough to be implemented with un-precision tools?

[Slorv]

You could out a small magnet on the moving arm and have a hallsensor that senses the position of the arm. Then you sync the images so you have a steady, or moving if you wish, image.

A ac motor will make the rotation steady aswell, a dc motor will drift up/down.

[agungk]

image frame sync is fine (using opto interrupter). the problem is physical vibration. i am thinking about automatic balancer, like the ones used in washing machines. no chance of implementing it yet.

[dsjyt]

For a commercial version google for "iBall"

BTW, the "blanking" or "flickering" you see in the video is caused by the video camera scan rate aligning with the "OFF" time for the LEDS...your eye cannot see this in person. (Same effect as seen when you try to videotape your television screen...)

[agungk]

guys, anyone has ideas how r,g,b parts might be driven with multiple levels of intensities each?

couple of things i've been musing:

i suspect pwm is not the way to go for this kind of application? dacs with many outputs would be perfect with condition: dac outputs should be double-buffered, with output strobe.

[Slorv]

PWM is the way, LEDs are current driven not voltage driven so you sould have to make a current sink circuit. Not difficult at all, just different from driving say a lamp or a speaker.

There are Several circuits on the web. Search and you'll find :)

[agungk]

the problem with PWM, grayscale effect is achieved by integration in the eyes. however, in this case, the LEDs are spun in highspeed. therefore PWM sequences will likely occupy different spatial locations (spread-out), unless the PWM frequency is high enough . A spinning display with 10fps, 50cm dia and LED dia of 5mm will require 3141 pixel transitions per second (pi*50*10/0.5). MAX6972 can only provide 60 pixel transitions per second.

[Slorv]

Ah, interesting problem, I didn't think of that. I'm using a MOSFET, VNP20N07, in a simple RGB thing, one for each colour. I don't have the datasheets here but I believe it goes to 50 kHz. The MOSFET is directly driven from a PIC. Or almost anyway, a resistor is in there.

[evildeath3ever]

??i don't get it

[eieucv]

you can help me to make a similar project, I have a problem with the PWM ... multiplexing

[codybird34]

wicked!

[dragonclaw88]

i can see the money rollin in now....mmmm

[Mepham75thR]

Bloody Hell!

[EclipseWebJS]

How the heck did ...

BTW, it's a cylinder and not a ball.