Switch It offers a number of options for controlling a power wheelchair, some of them unique, like their Switch It Lap Tray which has built in proximity switches which allows users to control a power chair with gross motor upper body movements.
What caught my eye was the Switch It Mouse Driver which turns your choice of power chair controller into a computer mouse. I assume that this also works with any open AAC system (any AAC system that allows access to the computer operating system underneath such as Windows XP).
Years ago I had a student who had a (no longer on the market) AAC system which we ordered with a similar power chair joystick to AAC mouse. Unfortunately it never functioned because the AAC company said the maker of the converter needed to support it and the maker of the converter said the AAC company needed to support it. I recommend that SLPs/teachers check on this before ordering.
