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1011
hmmmmmmmmmmm......but if the switches are in series, won't they all do the same thing??

The switches aren't in series, they'd be hooked up to the microcontroller chip in the same way the keys on the keyboard would be,
but they'd be able to hook into eachother.

and if it's an analog signal, would there be an impedance change issue running them in parallell?

One side of the chip is digital (the part that goes into the computer), the other is analog. We don't really have to worry about impedance since these are switches and not, say resistors, or LED's, etc,... we aren't doing anything, we're just switching a logical state.

here a parallel example with just one 'key' :


  input
  |  |
  |  |                             
  |  *_______________
  *__|_______________SWITCH
  |  |
  |  |
  |  |
KEYBOARD


Either the two wires short when you push the switch -or- the two wires short when you push a key on the keyboard,
for the input, there is no difference.  Maybe i'll look up the details on how they hook up to the microcontroller and make a little schematic and put it up on the bpm notepad website once i have it finished. Though chances are that many keyboards use different types of microcontroller, so it may be different and you may have to 'follow' the lines on the keyboard pcb (or membrane) anyway.



For any of you reading this that are less electronically gifted, there is always the simple way to do it...use a keyboard splitter.  You can get them for less than $5US at most cable supply companies.  Just don't use both keyboards at the same time (or in this case the keyboard and the pedal) or you get the same effect as pushing multiple keys at the same time.

1012
General Software Discussion / Re: how to reduce pagefile usage?
« on: June 04, 2007, 03:42 PM »
I honestly don't know if this will help or not, but have you ever tried a pagefile defrag program?  It might order what you have now in a way to increase your speed, and maybe free up a bit of the pagefile space.  Also, if I remember right, the pagefile in windows2000/XP is managed dynamically, but the older systems had to be set manually.  If you are using and older windows OS, perhaps you just need to manually increase the size?  Just my thoughts.

1013
Post New Requests Here / Re: Rerun StartUp Folder
« on: June 04, 2007, 01:46 PM »
I don't understand what environment variables has to do with it.  Please explain.  PATH is only needed to resolve programs which are not fully qualified, as I understand it.
That is true, but I thought it was looking for a version of the rundll32.dll in that folder.  If it is not in the path and is not fully qualified, it would not find it there and hence not work.

Of course with the fix, we just proved that was not the case.  :D

1014
Post New Requests Here / Re: Rerun StartUp Folder
« on: June 04, 2007, 12:44 PM »
Sounds like the path is not in your environment variables any more.  Look for the System Environment Variables Path to have an entry something like this:

C:\WINDOWS\system32;C:\WINDOWS;C:\Progra~1\ThinkPad\UTILI~1\

There will likely be more.  Also note, each entry is separated by the semicolon ( ; ).  If these are not there, try adding them.

1015
I definitely agree with these comments, especially Carol's suggestion of returning (or at least offering to return) the parts replaced.  As for the promised software to inventory the hardware, we use PCI32 at work.  You can download it and the instructions from http://members.datafast.net.au/dft0802/downlads.htm

Belarc Advisor is another one I have used, though not extensively.  It is nice because it uses a GUI interface:  useful for non-technical users.  You can get it at http://www.belarc.com/free_download.html

I have also found a few others, though none of these have been tried.  They can be found at:
(Please note:  Many of these are commercial and/or free for personal use only)

FreeSysInfo                          http://shareme.com/download/freesysinfo.html             
HWareInfo 1.01                     http://www.surfpack.com/downloads/HWareInfo/27267.html
AIDA32                                http://www.majorgeeks.com/download181.html
ASTRA/ASTRA32                    http://www.astra32.com/
EVEREST                              http://www.lavalys.com/
Hardware Inspector v2.2.2      http://www.hwinspector.com/

The keyword search in google to get good hits for this type of software is "Personal PC Audit" and/or "system information software" if you want more options.

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