laser sensor

quick question

I am interested in using a BS2 to detect a laser, and more particularly the strength of the recieved signals.
I have found a couple of sensors that will output a change in frequency or change in output voltage.

Which type is better to couple to a BS2?· I'm not sure if the BS2 can sense changes in frequency from this chip -
oh - around 1khz

http://www.taosinc.com/images/product/document/TSL230RD-E24.PDF
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Beau Schwabe

quick question,

The sensors you ask about are the same sensors that we sell, and there is example code to help you get going on your project.

http://www.parallax.com/detail.asp?product_id=27924

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Beau Schwabe

IC Layout Engineer
Parallax, Inc.

AIman

Beau,

Do you mean that the light sensor you gave the link for will detect a returned laser signal?

Does this mean that I could make a laser range finder based on the light sensor?

Bruce Bates

AIMan -

Sensing the returned pulse from a laser has never been a particular problem. Doing is in a timely fashion (lightspeed) IS a problem. There are ways of doing it, but no inexpensive and reliable ways of doing it.

Regards,

Bruce Bates

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Tracy Allen

Is the laser pulsing, or operating continuously? If it is continuous, the TAOs sensor should work just fine and is easy to interface to the Stamp. If the laser is pulsing, how long are the pulses and is it the height of the pulses that you need to measure?

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Tracy Allen
www.emesystems.com