Monthly Archives: July 2014

Light Sensor as Multi-Level Switch

A simple light sensor provides a measure of light incident on the photo-resistor. If one were to move a finger to touch and cover the sensor, the reading many range from 0 to 1023. In principle, that would differentiate more

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ISAAC 2014

International Society for Augmentative and Alternative Communication met in Lisbon from July 21-24, 2014. This is a premier forum for researchers, practitioners and users. In my technical career, I have never been to a forum that is at once technical

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What is a Click?

We click all the time. On a computer, it is usually a mouse click. Or, a two-finger tap. A click is tied to a visual element on the screen. When activated, a click triggers an action. Often, a click is

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