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Cheap 4WD object Avoiding Robot using four IR proximity sensors...
Electronic Music Box Powered by Arduino (sort of)
DIY Pocket Sized Anti-Theft Alarm !
A cool Op-Amp demonstration: Differential Light Meter
Simple IR proximity sensor with Arduino
Homemade Infrared Rangefinder (Similar to Sharp GP2D120
low cost air flow sensor
Infrared (IR) tripwire module
LEDs as light sensors
Cheap obstacle sensor - with Arduino!
Posted:Sep 27, 2013
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