Retrobrad Presents! A 32x64 Pixel LED POV Display.

[hellsguardian00]

What rpm is it moving? i am making a pov display but am unable to find a high speed motor :|

[warlord9090]

si toco esta wea me rebana los dedos?

[Ev3658]

Поделитесь схемой и исходником прошивки, заранее спасибо!.

[eivis13]

cool display, ever thought of making something more acurate like 800x480 ?

[xXSamster96Xx]

can you watch porn on this?

[blackjef5]

xD y yo que queria meter el dedo en esa cosa :s

[DarkraiRocks494]

OoO pretty light. must touch.....

[RyEm167]

i find this difficult to masterbate to.. 

[pinxify]

hi, i like your work. would you help me? please contact me if possible. thanks

[00retrobrad00]

@pinxify Maybe, what did you need help with?

[TheRealGeriBoss]

pretty cool. i am making something like this as well. if you want to see it, check out my channel.

[Cwafter]

"How does this work?" *pokes it* "AHHHHHHHHHHHHH!!!!"

[tylerblake478]

I can see this thing injuring me xD

[Sandrika1997]

W o W THATS FANTASTIC

[luiseduardo586]

how the hell those things work???

[LulzAreGud]

play half-life, LIKE A BOSS

[seagullchew99]

nice work man. I would like your help to create some idea. Hope you can help. Please contact me if possible. Thanks.

[GalvezArtSign]

Put ur hand in their..

And your name will APPEARS>

[lindsaya1612]

thats soooo kool



[johanbest]

that thing looks fuking dangerous

[RobnCheez]

You should make it play games!

[NewGuyCommentary]

get some nice design on it so people will buy it and then get rich because i would buy it.

[leonardotry]

it can kill some one

[denderfurger]

nice C64! <3

[Malmsteen1990]

AAA LAAAAA VEEEEEEEEEEERGAAAAAAA O_______O

[matttatts]

thats cool man. you shud put a shorter led bar on the inside of it so it will have depth also

[00retrobrad00]

@matttatts Just like that 3D globe pov - it looks cool!

[arth1786]

hi! can you give me the simple schematic diagram of this project, just one color of led and also its source code. I need it as soon as possible. please

[knabbers]

@arth1786 what a weird question.

[bam6470]

you should make the blue screen of death with it that would be hilarious

[TCreatorO]

THIS TECHNOLOGY IS THE ONE THATS GOING TO BE USED FOR HALOGRAMS :)sorry had caps on

[DieWahrenProgamer]

how did you make it???? can you show a video where you are build something like this;)???

[00retrobrad00]

@DieWahrenProgamer I guess I could make a sped up video showing how I make a project - otherwise the video would be hours long!

[Soulrider2012]

Very nice job! I love POV displays like this. I've always been fascinated by them. I only wish I had the know how to build one myself. All I've seen that you can buy are the very small globe like ones on Ebay. I'd love a larger one like this. You should consider making and selling them.

[intheatre]

put your hand there and touch the letters ... ;)

[thecrazyfirekid]

thats sick!

[ufoengines]

Have you been able to display any old television shows with this like the Narrow Band Television folks can using a 60 line mirror screw ? The systems seem similar, but you have color. Cool!

[MaghoxFr]

This is the most unbelievable thing I've ever seen in my life! Not apt for children though

[Tman545380]

jesus where can i get it already made

[umcumckula]

HAHAHA refresh sucks ; p

[00retrobrad00]

@umcumckula Thanks man = )

[killerbeenl]

This is cool. too bad for the led thats missing green (one led defect)

[inamkhan1001]

wonderful

[meinotherside1]

cool!!!

[Bob0p]

It would be cool if you found a way to hook at nes up to it and play it.

[g00nsessan]

COMMODORE 64!

[bierenunreal]

NICE!

Why is there a black stripe going around?

[00retrobrad00]

@bierenunreal Hi, that stripe is due to the difference between the refresh rate of the POV display and the camera. You don't have that stripe when seeing it in real life.

[cret1n]

are you using like an ir sensor to trigger the LED's at certain times or did you just have to measure the speed of the motor and program accordingly?

[00retrobrad00]

@cret1n Yes, there is an IR sensor (taken out of an old ball mouse) When a nail cuts the communication between the IR LED and sensor it sends a logic 1 to the microcontroller to tell it to start drawing the next frame. Everytime it passes the sensor it flashes 64 times, it then waits until it gets to the sensor again before drawing the next frame.

[cret1n]

@00retrobrad00 cool, how did you work out how long a flash should take to make one pixel in the 64 pixel frame?

[vanjastanic]

omg why all n00bs set this POINTLESS shit "Enter your text here"!??!?!!! It's so fucking annoying!!!

[perazaroberto2]

thankiu

[bestamerica]

'

is this spin little shake as vibration or smooth balance

[DosKanonos1994]

Well, THAT's 3D.

[knabbers]

hi there this is seriously amazing. I'm making a project of this size and type for school, and I see that you have managed to fit the necessary tracks down the back of the LED supporting stick. I was wondering how you did this - did you use strobing - flashing them on and off really quickly making it look like it is on continually. I have formed a circuit so that 19 tracks are needed running down the supporting stick (instead of 49 without strobing) do u think it will work? thank you-great work!

[00retrobrad00]

@knabbers Hi, sorry for the late reply. Could you expand on your question a little bit? I'm not quite sure what you mean.

[coolpreme]

wow,,. that's cool....

[windoes98se]

what is causing the diaganal black lines going accroa youre displaer?

[tonyrueb]

@windoes98se the camera it is called aliasing. when you have data coming in faster then you can process it it causes some strange things to happen, old westerns is a good example the wagon is moving forward but if you look at the wheels it appears it is moving backwards. its a common issue with signal processing. when information is coming at you faster than you can process it. in this case the video cameras FPS is to low.

[xXWeltchXx]

thats so cool

[acer0169]

0:30 I thought it was displaying windows xp for a minute there ;)

[ShanAruba]

Nice project, at what frequency is the motor spinning?

[weeardguy]

Sigh..........I can only dream of making something like this.....

[sunnypatel66]

Great Job

[mech3434]

you can connect that to a vedio source and use it as a low res display

[mynextgeneration]

awesome can you send me full project details so that i will try this project

[DjIsotope]

they should make tvs like this that everyone could see from all directions!

[ricande]

@DjIsotope I like your enthusiasm, but hardly working.. ;)

[DjIsotope]

@ricande lol

[graymalkin1234]

With surface mounted LEDs you could get a lot higher res and even display video using 4 leds per channel (r, g, b, cyan)

It looks like a great project

[fedsumkin]

WOW!!!!!!

Beautiful!!!!

[walterdelbono]

awesome...

[cronosu2]

yes it is , is the same effec when you record with camera in a tv or computer....but is AWESOME !!!!

[ricande]

@edgecrushers The finished product would probably spin within a glass or plastic casing. ;)

[edgecrushers]

hehe yeah, that is a pretty good point... but still would be pretty dangerous in the testing stage :p

[68EC060]

I want to make one of these myself too!!

[d3u1d4e]

Thank you for sharing this! How many PWM channels did you use?

[00retrobrad00]

Hi, sorry for the late reply. I did not use any PWM for this. I just used some 74373's to latch onto the data and then send it to the LED's (which means it is only capable of eight colours)

[68040E]

Commodore Rock!

[00retrobrad00]

I thought some retro gamers might like that = )

[ricande]

@00retrobrad00 Oooohh.. Love the C64 :D

[IMakeOrWatchVideos]

Your site does not even work

[00retrobrad00]

It seems to be working fine to me?

[IMakeOrWatchVideos]

oops i meant the 2ed one. not yours.

[mourdaunt3007]

hey i like your work i think it's fantastic, can you help em to understand how can i do something like that

[00retrobrad00]

Hi, the big chip ontop is a pic18f4550, the other one is a 27e512 eeprom.

Then there are 12 74373's to hold onto the information from the eeprom (Four for each led colour component)

The 74373 grab info from the eeprom, then when all 74373's have their data, they then output them to the leds, this draws one column. It repeats the process 64 times to draw one frame.

I dont have schematics for this pov, but i do have schematics of a similar project on my electronics website. (see my channel)

[akai454]

The 74373, is that a shift register / LED driver? I'm sorry I was unable to understand, did You say that each 74373 only has four output channels? If I'm mistaken please tell Me, I have a use for a toy that uses about 80 LEDs, do You know where I can get a shift register / led driver with a large number of outputs like 16 or 32 outputs? All the ones I find on the net are only sold in packs of 10,000 or more. If You know where to get them, please tell Me. Thank You.

[00retrobrad00]

the 74373 has 8 inputs and 8 outputs. the inputs each connect to a d-latch, the output of the d-latches connect to tri-state buffers and then these connect to the chips outputs. so you place eight bits on the inputs, then you pulse a logic 1 to the latch enable line. this will store those eight bits in the eight latches. then when you are ready to send the data to the leds, you pulse a logic 0 onto the output enable line. id just use a whole heap of 74373's to control all of your led's = )

[manueltg1]

Akai, you may use a member of the MCP23x16/17 from Microchip, there are 16 bit port expanders and since they are I2C or SPI you may chain many of them to the main MCU

[SamuelAaronWard]

Are those PIC's? What kind? I want schematics and a parts list! :)