http://chorder.cs.vassar.edu/ 2009-11-21T04:26:50-05:00 http://chorder.cs.vassar.edu/ http://chorder.cs.vassar.edu/lib/images/favicon.ico text/html 2009-03-25T16:18:34-05:00 http://chorder.cs.vassar.edu/spiffchorder/2009-03-build?rev=1238012314 We decided to build a few desktop spiffchorders and document the process to make it easier for folks to build their first chorder. Eventually this page will contain start to finish photos and instructions for making a desktop spiffchorder in an old vhs cassette case. Currently, it has some photos of the process. text/html 2009-03-25T15:29:32-05:00 http://chorder.cs.vassar.edu/spiffchorder/buildit?rev=1238009372 A few of us are putting together 4 chorders in our spare time over the next few days. This endeavor will be documented March 2009 build project pages. --- Greg Priest-Dorman 2009/03/25 15:14 Hardware Build the electronics Build the interface text/html 2008-01-16T09:05:06-05:00 http://chorder.cs.vassar.edu/spiffchorder/chord_creation?rev=1200492306 Layout or How Many Thumbs? Code Considerations 3 modes available keycodes.h The [keycodes.h] file contains the names you will assign to your chords. Unless you want to rewright some of the code (which you are more than welcome to do) you are restrictied to these key codes. They are the usb keyboard key codes, the codes for the spiffchorder mode manipulation and some special codes that are translated by the program into a sequence of usb key codes. There are a few kinds of lines in keycode… text/html 2008-03-18T22:02:13-05:00 http://chorder.cs.vassar.edu/spiffchorder/chorder_construction?rev=1205892133 With the spiffchorder you are free to put any kind of key switches on any kind of surface or material and make it a chorder.  Plastic, leather and cloth have been successfully used as the base materiel and a variety of items ranging from conventional keyboard switches to conductive fibers have been used for the “buttons”.  text/html 2008-01-22T21:02:04-05:00 http://chorder.cs.vassar.edu/spiffchorder/chordpics?rev=1201053724 Half Size 2 different ways to do the pictures, The “A” showing all of the keys, the “P” showing the first press as the thumb only buttons. What do you think? □■■■ □■□ text/html 2009-08-15T20:21:43-05:00 http://chorder.cs.vassar.edu/spiffchorder/forside?rev=1250382103 Greg, Mikkel, a spiffchorder (on Greg) and the Staples parking lot that made it all possible Spaceman Spiff’s Chording Keyboard Experiment (or SpiffChorder for short) is an experimental platform for creating a USB chording keyboard. A chording keyboard or wp>Chorded keyboard is an input device where characters can be typed by pressing multiple keys at the same time. A popular design is the 7-key chorder, where one key is used for each of the index finger, middle finger, ring finger and … text/html 2009-07-21T22:59:02-05:00 http://chorder.cs.vassar.edu/spiffchorder/hardware?rev=1248231542 The image below shows the schematics for the SpiffChorder hardware. The interface to the USB connection is handled with a few passive components. Since the USB communication is handled by bit-banging in the software, an accurate clock source is needed. A 12.000 MHz crystal provides this. Since the beginning of the SpiffChorder project, the AVR USB stack has been expanded to also work at 16 MHz and 16.5 MHz, but this has not been tested with the SpiffChorder. text/html 2008-03-08T21:08:09-05:00 http://chorder.cs.vassar.edu/spiffchorder/latest_build?rev=1205028489 This is the current release of all the code for the spiffchorder. Any new releases will appear first at <http://symlink.dk/projects/spiffchorder/> and very shortly there after be mirrored here. Download the Latest Build [SpiffChorder-0.98.zip] $Id: license.txt 10 2008-03-07 20:50:44Z $ Spaceman Spiff's Chording Keyboard Experiment is based on the HIDkeys application of Objective Development Software GmbH, and their distributed AVR-USB firmware only driver. The directory usbdrv contains t… text/html 2008-01-15T20:07:29-05:00 http://chorder.cs.vassar.edu/spiffchorder/modified_microwiter?rev=1200445649 This chordset will be based on the microwriter alphabet chords but will use qwerty bindings for shifted keys. If you are a user of the microwriter chords and want input into the bindings in the chordset please contact me. -Greg Greg Priest-Dorman text/html 2008-02-07T21:26:09-05:00 http://chorder.cs.vassar.edu/spiffchorder/modified_nasa?rev=1202437569 A few general notes As a general rule the spiffchorder is using the standard key-bindings were possible. This is a benefit as most of you are coming to chording already familiar with the QWERTY keyboard. As such prefixing a chord with does what you would expect, generates , generates and so on. text/html 2008-05-21T14:51:34-05:00 http://chorder.cs.vassar.edu/spiffchorder/sample_layout?rev=1211395894 With around two dozen total components its hard to go wrong.  The chorder can be built on perfboard, stripboard, wirewrap or your can etch a pcb board.  If you create a layout, please send it to us, your layout may be just what someone else needs to help them build their board!  Please be sure to clearly state how you want to be listed when we post it.  From Name and email address (obfuscated by the wiki) to total anonymity, we will do our best to accommodate your request. Component numbers … text/html 2008-04-09T10:11:45-05:00 http://chorder.cs.vassar.edu/spiffchorder/sidebar?rev=1207750305 homedownloadelectronicschorderdefault chordsetcreate a chordset text/html 2008-01-06T14:30:43-05:00 http://chorder.cs.vassar.edu/spiffchorder/tabs?rev=1199647843 Introduction Sample Chordset Chording Tips SpiffChorder hardware Creating you own chordset text/html 2008-01-05T12:29:39-05:00 http://chorder.cs.vassar.edu/spiffchorder/tips?rev=1199554179 Modified NASA keybindings “”“”’’“”Modified NASA keybindings“”“””” text/html 2008-03-02T22:05:39-05:00 http://chorder.cs.vassar.edu/spiffchorder/todo?rev=1204513539 Here are items we know need to be fixed or features we would like to add. text/html 2008-03-04T00:16:56-05:00 http://chorder.cs.vassar.edu/spiffchorder/todo_archive?rev=1204607816 text/html 2008-03-14T18:06:20-05:00 http://chorder.cs.vassar.edu/spiffchorder/twidlette?rev=1205532380 The idea for the Twidlette is to use the thumb only for modifiers like shift, alt, esc, ctrl, number-pad  and use the fingers for everything else.  Here is the proposal pinky gets 1 key, each other finger gets 2 keys which can be pressed either separately or together.  This gives (2x3x3x3)-1 unique chords or 53 unique chords on the fingers.  The finger buttons would look something like this: text/html 2009-05-04T11:40:36-05:00 http://chorder.cs.vassar.edu/spiffchorder/using_the_atmega8?rev=1241451636 If you build your SpiffChorder with an ATmega8 instead of the ATmega168 you will need to make one or two changes to the Makefile. You will also need to set the fuses differently when you program the chip. All these changes are documented here. If you like me, build the hex file, then program by using avrdude or some other program directly, or use the usb bootloader then you only need to make the first change below.