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 Post subject: keyboard mod
PostPosted: 27.12.2005 20:57 
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Junior Modder
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Joined: 01.10.2005 14:52
Posts: 24
is it possible to place 10 leds on each side of the keyboard, only 1 led is on (each side) always

and when a button is pressed it will turn off the led and turn on the next led


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 Post subject:
PostPosted: 27.12.2005 22:28 
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Ultra Modder
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Joined: 07.12.2004 19:45
Posts: 2537
Location: Finland CPU: i5-750 RAM: 4Gt, HDD: 2000 Gt, GFX: RADEON HD 5770, D: 22"+44"
Led change to next led is possible using IC 4017.
http://www.metku.net/index.html?sect=view&n=1&path=mods/vilkkuvalot1/index_eng
(This case don't need that timer circuit 555).
Leds jump one step, when get signal.
I don't know, where get signal in keyboard, at every button roll leds :?

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 Post subject:
PostPosted: 28.12.2005 02:35 
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Junior Modder
Junior Modder

Joined: 01.10.2005 14:52
Posts: 24
can u draw a pic there the 555 circiut is removed?

and where the signal should be


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 Post subject:
PostPosted: 28.12.2005 18:59 
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Ultra Modder
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Joined: 07.12.2004 19:45
Posts: 2537
Location: Finland CPU: i5-750 RAM: 4Gt, HDD: 2000 Gt, GFX: RADEON HD 5770, D: 22"+44"
4017 got signal from legs 14, if it touch ground, then led jump to next (i think).

Still i don't know where get that signal in keyboard :?
If someone know, tell...

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 Post subject:
PostPosted: 01.01.2006 18:44 
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Junior Modder
Junior Modder

Joined: 01.10.2005 14:52
Posts: 24
i belive it jumps to the next led when i get +5V :?


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 Post subject:
PostPosted: 02.01.2006 20:45 
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Junior Modder
Junior Modder

Joined: 01.10.2005 14:52
Posts: 24
Now im sure :D

its jumps to the next led when 14 touch +5V

and you must removet it and put it back to jump to the next led


You can't hold it on +5v and it jumps all the time


8)


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