Difference between revisions of "Photocell"

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===Overview===
===Overview===
[[image:photocell.png|right]]

Photoresistors (photocells) are simply variable resistors in many ways similar to potentiometers, except that the resistance change in light level rather than by turning a knob. Photoresistors can be used as light sensors, which can enable robot behaviors such as hiding in the dark, moving toward a beacon, etc.
Photoresistors (photocells) are simply variable resistors in many ways similar to potentiometers, except that the resistance change in light level rather than by turning a knob. Photoresistors can be used as light sensors, which can enable robot behaviors such as hiding in the dark, moving toward a beacon, etc.
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===How It Works===


===Circuitry===



===Connecting to the PC/104 Stack===
===Connecting to the PC/104 Stack===

Latest revision as of 16:30, 6 July 2006

Overview

Photocell.png

Photoresistors (photocells) are simply variable resistors in many ways similar to potentiometers, except that the resistance change in light level rather than by turning a knob. Photoresistors can be used as light sensors, which can enable robot behaviors such as hiding in the dark, moving toward a beacon, etc.

Connecting to the PC/104 Stack