I am interested in building an input device that will provide a computer input for my daughter Liz who has Cerebral Palsy.
Liz has a great deal of involuntary head movement but she can reliably open and close her mouth to actuate a switch.
I would like to provide her with a wireless device that senses her mouth opening and closing to provide input to a single switch scanning communication system. Years ago I combined a chin strap, a bennie cap and a micro switch to provide that function. I am looking for ideas!
I have searched many sites looking for devices but all require her head to be held fixed which is impossible for Liz.
