A great way to add an "eye" to your robot, and
it even looks like an eye!
This optical sensor is encased in a rugged plastic housing, and the
housing provides a convenient mounting hole (use a 2/56 or 4/40 machine
screw). 5" hookup leads.
The housing incorporates an integral lens that focuses light onto the
sensor inside. The device measures 3/4" in length, by approximately
5/16" in diameter. The overall length of the mounting tab is
Hookup can be accomplished using the standard voltage divider. We
recommend a 1M ohm resistor between the black lead (which also serves as
the output) and V+. The yellow lead connects to ground--and yes,
polarity matters. We tested the sensor at 5 vdc. Voltage swing is
between 0 vdc for no light, and about 4.8 vdc for full light. Color
sensitivity is visible light through infrared.
Use these for line tracing or edge detection (with a suitable
illumination source), or as a general-purpose proximity detector. This
device will detect the passing of a human or animal from several feet
away, as long as there is sufficient reflected light.