Let's Make Robots!
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DESCRIPTION This is an on-the-cheap (at least cheap by Radioshack price standards) IR sensor array that could be used for a line-following robot. Although there's … Read more
Price: $2.49 USD

 Collected by one member
The QTR-1A reflectance sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5" x 0.3" module that can be … Read more