Detect
objects without physical contact! This tiny kit emits a
beam of modulated infrared light & watches for the reflection, recognizing its own "carrier
tone" it rejects all other signals, even of the same
light wavelength!
Includes all parts, tiny PC board (just 1.8 x 2.1 x 0.9
cm) and complete instructions. Requires careful soldering.
Power it with 5V, standard TTL output. Detects up to several
inches away (depending on surface). You can even extend the
emitter and detector with fiber optics for precision detection.
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