"Oneswitch Pup" keyboard modfication
Posted: Tue 02 Jul 2013, 19:54
** See third post below for much easier mod**
This thread offers a tutorial that is intended to help people modify a keyboard so that it can be used as an interface for the "Oneswitch Pup" pet requested for the benefit of disabled users in the original thread here:
http://www.murga-linux.com/puppy/viewtopic.php?t=84617
Latest Oneswitch pet (at time of writing...) here:
http://www.murga-linux.com/puppy/viewtopic.php?t=87418
My original versions of SwitchPup here:
http://www.murga-linux.com/puppy/viewtopic.php?t=85466
******************
** See third post below for much easier mod**
It is difficult to post a proper tutorial on the forum due to the difficulty of putting multiple images into a single post, so the pdf version of this tutorial is a 1MB download available here:
http://www.mediafire.com/download/z9tur ... torial.pdf
(This tutorial is for a usb keyboard which in this cases uses a "membrane style" internal construction. I hope to post more tutorials for other types of keyboard - although the principles will be very similar)
Basically it is necessary to open up the keyboard, locate the cables that supply the "grid wires" that criss cross to each keyswitch, measure the pins till you locate the pair which come from the Pause/Break key, then solder a couple of wires and a resistor into that circuit. More details in the downloadable pdf.
This thread offers a tutorial that is intended to help people modify a keyboard so that it can be used as an interface for the "Oneswitch Pup" pet requested for the benefit of disabled users in the original thread here:
http://www.murga-linux.com/puppy/viewtopic.php?t=84617
Latest Oneswitch pet (at time of writing...) here:
http://www.murga-linux.com/puppy/viewtopic.php?t=87418
My original versions of SwitchPup here:
http://www.murga-linux.com/puppy/viewtopic.php?t=85466
******************
** See third post below for much easier mod**
It is difficult to post a proper tutorial on the forum due to the difficulty of putting multiple images into a single post, so the pdf version of this tutorial is a 1MB download available here:
http://www.mediafire.com/download/z9tur ... torial.pdf
(This tutorial is for a usb keyboard which in this cases uses a "membrane style" internal construction. I hope to post more tutorials for other types of keyboard - although the principles will be very similar)
Basically it is necessary to open up the keyboard, locate the cables that supply the "grid wires" that criss cross to each keyswitch, measure the pins till you locate the pair which come from the Pause/Break key, then solder a couple of wires and a resistor into that circuit. More details in the downloadable pdf.