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Thread: USB Keyboard encoder - Interested ?

  1. #11
    Fusion Brain Creator 2k1Toaster's Avatar
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    Quote Originally Posted by gagan512
    making you own PCB is really easy if you have a laser printer, and some patience. google a little and you'll find several links on how to do it yourself. i've been able to do very fine traces of upto 1mil. of course, once its in mass production i'll be sending it out to a fab
    by laser printer, do you mean inkjet or laser kind of laser, or laser as something by Universal Laser, a laser cutter/rasterer? I have both, so curious!
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  2. #12
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    Quote Originally Posted by 2k1Toaster
    by laser printer, do you mean inkjet or laser kind of laser, or laser as something by Universal Laser, a laser cutter/rasterer? I have both, so curious!
    chk out this link to start off with

    http://www.fullnet.com/u/tomg/gooteepc.htm

    http://www.wd5gnr.com/pcb.htm

    http://www.qsl.net/ve2emm/pcb/pcb2e.html

  3. #13
    lez
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    Quote Originally Posted by 2k1Toaster
    by laser printer, do you mean inkjet or laser kind of laser, or laser as something by Universal Laser, a laser cutter/rasterer? I have both, so curious!
    he means something like a hp4l etc.

    Its called toner transfer , a novel way to maknig pcb's and one I have used, to some success.

    Their is a homemade pcb yahoo group, were looking at direct inkjet printing and its 'working' if used with the right inks.


    Easiest toner transfer is to print (mirror the image) with the laser printer onto some glossy paper, the kind used for flyers(junk mail) or some photo papers(harder).

    Then you iron it on, dont smudge, get it hot, dont steam, dont even use a staeam iron the holes cause dropout etc.

    That gets the toner on the board, then etch.

    http://groups.yahoo.com/group/Homebrew_PCBs
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  4. #14
    MySQL Error MatrixPC's Avatar
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    Quote Originally Posted by gagan512
    I use lazer/copier machine and iron transfer method with "Staples Picture" paper. The result is perfect everytime.
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  5. #15
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    Quote Originally Posted by MatrixPC
    I use lazer/copier machine and iron transfer method with "Staples Picture" paper. The result is perfect everytime.
    yep, i use the exact same paper.

  6. #16
    Variable Bitrate red_parchel's Avatar
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    im ... interested .... so this device is recognised by windows as another keyboard device, and it sends the OS input, from 1 to 32 buttons you wire to the board, and then in the os you use them how? i think this could prove VERY usefull, if i understand how the os (read windows ) will use this decive
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  7. #17
    Newbie ReverendR's Avatar
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    I realize that this info comes a little late, but these sorts of keyboard interface boards are used by home arcade machine builders. You can get them from

    http://www.thrustvector.com/

    I think the Afterburner is the one that TeaVirus used in the cabinet I helped him build.

    But there's also these two

    http://groovygamegear.com/webstore/i...roducts_id=199

    http://www.ultimarc.com/ipac1.html

    You hook up switches to the terminal blocks and then tell the board that that switch = 'A'. Whenever that switch is closed the board tells the computer that the 'A' key has been pushed.
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  8. #18
    MySQL Error scott_fx's Avatar
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    Quote Originally Posted by ReverendR
    I realize that this info comes a little late, but these sorts of keyboard interface boards are used by home arcade machine builders. You can get them from

    http://www.thrustvector.com/

    I think the Afterburner is the one that TeaVirus used in the cabinet I helped him build.

    But there's also these two

    http://groovygamegear.com/webstore/i...roducts_id=199

    http://www.ultimarc.com/ipac1.html

    You hook up switches to the terminal blocks and then tell the board that that switch = 'A'. Whenever that switch is closed the board tells the computer that the 'A' key has been pushed.

    the ipac boards also have software that will let you assign the inputs to any key press you need. I have one and it's a nice product.
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  9. #19
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    Quote Originally Posted by red_parchel
    im ... interested .... so this device is recognised by windows as another keyboard device, and it sends the OS input, from 1 to 32 buttons you wire to the board, and then in the os you use them how? i think this could prove VERY usefull, if i understand how the os (read windows ) will use this decive
    So windows detects this as a usb keyboard. the only difference being, this has lesser keys.
    You wire a switch/button to one of the connectors, which is for eg. the key "B".
    Now lets say you setup global shortcuts in winamp to do 'next track' when 'B' is pressed... and i think you figured out the rest.

    similarly, you can use it for volume control, media control, shortcut keys etc..

    Its basically just a keyboard, just one that takes up no space, and on which you put your own buttons

  10. #20
    Super Moderator. If my typing sucks it's probably because I'm driving.... turbocad6's Avatar
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    almost any usb keyboard already has a board like this that can be used... the big difference I see with yours is the pinout connections for keys, instead of say a ribbon cable... I've used boards like this straight out of $10 keyboards though.., yours is easier to implement

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