Ear switch as an assistive communication and control device / gaming switch and HCI In this hack I have used a USB otoscope camera to detect voluntary movement of a middle ear muscle (tensor tympani), to control assistive technology software (Grid3), the Microsoft On-Screen Keyboard , and as an "left-click" selection as an adjunct for eViacam head- tracking software. 75% of people recognise that they can contract their tensor tympani (a rumbling sound or muffling of the hearing eg when yawning/ tightly closing eyes etc). 17% could generate the contraction in isolation to other movements. I have shown with a USB auroscope from Amazon that this causes movement of the eardrum, and I have detected this movement with iSpy motion detection software and successfully used it to control (handsfree); asssistive software (Grid3), the On-Screen Keyboard and to function as a "left click" for head tracking. I hope this can help people to communicate
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A trackball mouse. Mechanical files, PCBs, and firmware all included.
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Individuals with limited dexterity due either to problems with muscle control or to joint pain can have difficulty lacing and tying their shoes.  These magnetic shoelaces, originally designed by the Ruiz brothers at Adafruit, make it possible to easily put on,  tighten, and later, take off lace-up shoes.
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Individuals with limited dexterity due either to problems with muscle control or to joint pain can have difficulty opening pop-top cans and opening small bottles.  This assistive device makes it easier to accomplish both tasks.
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This design was inspired by a request posted to the ATMakers.org page on Facebook for a way to make a capacitive stylus that could be used by people with limited finger and hand control.
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This universal cuff stylus gives people who have no fingers or people with limited grip, hand strength, or dexterity a way to interact with their capacitive devices - tablets and smartphones.
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Utensil holders give people with limited grip, hand strength, or dexterity a way to use items like eating utensils, toothbrushes, writing tools, and other small items. This device is focused on support for eating but the design could be extended easily to other objects. It was inspired by a post to the ATMakers.org page on Facebook asking for a utensil holder that accommodated knifes as well as forks and spoons.
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