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input/output led matrix

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Uploaded by on May 13, 2007

A short demonstration of the input/output electronic matrix I made for my 1st year fine art degree.

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Entertainment

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  • likes, 15 dislikes

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Uploader Comments (rokhoppachris)

  • Wow i like it. Is this expensive? i want to create this as my project.. tnx

  • cost me about £250... all out of my poor student loan

  • So what controller did you use and how did you perform the multiplexing to drive that many LEDs via some address decoders or some BCD counters?

  • its not quite as complicated as that. 400 individually wired series circuits - psu>switch>resistor>led>psu

  • yeah, i thougt about using lit switches, and eliminating the need for a second board with lights. but im paying for this out of my student loan....

    as for isferos, im afraid it doesnt serve a practical purpose. its just very artistic.

  • it can't execute any programs, only transfers the input form the switch interface to the led matrix. 1 switch controls 1 led so its really basic. however, it sort of qualifies as a computer cos it has memory. its working on the same binary system that is the basis of all computing.

Top Comments

  • im not trying to be rude. but its kind of...unimpressive. one switch for each light.

    use a touch pad or something to draw.

  • omg guys this is so easy to build... and 1 more thing .. do u think like u are god if u can wire a 200 LED-s to 200 switches...? big deal...

    get 3 chips and program them to like play tank's on LED display... that would be cool.. this is just a vaste of time and money...

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All Comments (22)

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  • you should do the game of life on this - would be perfect.

    very cool design =)

  • so this is how it all started ... Maker: "Dude... I have this great idea for my class project ...(5min later)... imagine this... INPUT = OUTPUT ...(5min later)... it's Genius! and all you need is buttons, leds, and more of this stuff , hehehehe ... more of this stuff ...hehehe ...I'm hungry"

  • The housing looks very cool. do you know what kind of current this thing draws when all leds are on?

  • He has to turn all those lights off to be let in his apartment each time. But I agree, he's a fag.

  • It's an LED doodle board O.o SIck

  • waste of time & money... 4 fagots

  • Would have been cooler if he had used the LED's as photosensors and made it so that you simply touched the LED array and what you touched lit up.

  • That's a /lot/ of time... and not much of a reward.

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