The processing speed of the Ergodex DX1 pad is not particularly fast. Sending 960 bytes of data (60 commands) to repeatedly turn the green led on and off takes about 2 seconds. It was hoped that the Ergodex would be fast enough at processing commands to allow us to fade the leds in and out but instead you just see a fast flickering effect.

The ergodex can track 6 movable key presses and the 2 immovable “record” and “hand” buttons at any time. Being able to track 6 movable keys is excellent news for those wanting chorded input.

• Chorded input related links

http://www.infogrip.com/

http://www.fingerworks.com/

http://www.etla.net/~willey/projects/chordkey/