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  • "insulated shaft encoder"

    I was thinking of having a separate volume knob, so that I always can control it, what ever I am doing on the screen... I thought of useing an "insulated shaft encoder" for this. (I think its called that in english, at least it says that on the hompage =P ) The problem is that (as seen in the attached zipped pdf file, and as all you guys who knows anything about this understands) I can't just connect it to the parallellport and assign it as a key, I have to have a program that reads se signals (eg pulses) given by it, and then, depending on the signal structure, sends a command for raising or lowering the volume.

    I think this sounds VERY strange to those who dont understand me, but i hope that at least someone got it...

    btw I'm useing the "EC16B-24204", described in the pdf...
    Attached Files
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  • #2
    i posted a thread on this a year or so ago under something like incremential rotary encoder, i have played with the idea recently of pulling apart a mouse and hooking one up to where the sensors go, i havent tried it yet but i think they work in a similar fashon. there is also a thread somewhere on using mouse rotary encoders as inputs
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    • #3
      http://www.mp3car.com/vbulletin/show...rotary+encoder

      bingo
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      • #4
        nice =)

        but wouldent it be easier to just build a small program for this? It can't be specially hard for a real programmer...
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        • #5
          I'm thinking of hooking it up to an old usb mouse i found. The problem is that I can't find any plugin for girder that reads the signals from the mouse...
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          • #6
            have found a working plugin, will try to hook up the "insulated shaft encoder" tomorrow.
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            • #7
              Can't Girder read a joystick port? If so, you could wire up a pot (100k linear taper?) to a joystick input and assign that to volume. Not as flexible as an encoder, though.

              The scroll wheel on a mouse comes pretty close to what you want. With winamp, scroll => volume, press+scroll => forward/reverse
              Turn it into a knob with a push switch, and it would look a lot like...

              ... the Griffin Powermate - a rotary knob that plugs into USB - looks usable, but it's expensive for what it does. http://griffintechnology.com/product...e/features.php
              http://www.amazon.com/exec/obidos/tg...60862?v=glance

              There's various USB jog/shuttle controls intended for video editing. http://www.contouravs.com/spaceshuttle_info.html
              About the same price as the Griffin. They say it can be configured to work with ANY application.

              The CommandPost editor controller (jog shuttle, fader lever, and 15 buttons) was bundled with some copies of MGI Videowave. http://www.focusinfo.com/products/co.../features.html
              There's still lots of discounted packages out there; I just ordered one for $20 plus shipping.

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              • #8
                cool stuff, but far to expensive for what it does, if you ask me...

                The thing is that I want a rotating knob without ends because I think it feels cool =P and I want it to just sends pulses, because then I can decide how fast I want the volume to raise...
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                • #9
                  I see what you mean. The flywheel tuning dials on old stereo tuners had a nice feel to them.

                  So, what is the plugin that you found, and how does the encoder connect to the 'puter?

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                  • #10
                    If I ever get this thing finished, you can have two rotary encoders and an LCD panel plugged into the same USB port (image attached).
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                    • #11
                      http://www.phidgets.com/index.php?mo....166.33&IID=62
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                      • #12
                        I found the plugin in girders homepage http://www.promixis.com/

                        Its just called "mouse" i think... Thoug i first had som problems with it. If i loaded i cound no longer click with the mouse =S So i attached a key on the keyboard to "left mouse click" and then i loaded the plugin, got into settings and just pushed the "default" button. Then it worked again... Kinda strange it wasent set to default from the begining...

                        I'm useing some stuff from an old usb mouse I found in a drawer =P
                        Gonna try whats described in http://www.mp3car.com/vbulletin/show...rotary+encoder
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                        • #13
                          let us know how it works, i want to know if there are any issues with using this and a touchscreen
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                          • #14
                            Originally posted by toys4theboys
                            If I ever get this thing finished, you can have two rotary encoders and an LCD panel plugged into the same USB port (image attached).
                            more information please
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                            • #15
                              "the usb device has an unknown layout and can not be recognised"


                              damn
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