LilyPad Light Sensor Hookup Guide
Contributors:
Gella
Gella 
Resources and Going Further
Here are some resources for planning a project with the light sensor:
Or, you can check out these other great light-based tutorials.
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Use this IR LED/phototransistor fusion to sense objects in close proximity or even the color of a surface!
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It's now easier than ever to measure and characterize how different materials absorb and reflect different wavelengths of light. The AS726X spectral sensors allow you to detect wavelengths in the visible range (VIS) and near infrared range (NIR)!
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