How to program and connect to a BS2 Photoresistor a and IR Transmitter to use i
Hi all,
I want to connect to a BS2 Photoresistor a and IR Transmitter to use it as a proximity sensor.
Any help will be very much apriciated.
Humberto
I want to connect to a BS2 Photoresistor a and IR Transmitter to use it as a proximity sensor.
Any help will be very much apriciated.
Humberto
Comments
You still could use the photoresistor, but the other is easier and more reliable. The book does have some examples of the use of a photoresistor as well.
Thanks for your promp response, I can't find this book at parallax?
Humberto
Most of the books on this page are free to download: <http://www.parallax.com/html_pages/products/books/books.asp>
Sorry for all this questions but I am new in this, on this book only shows the use of infrared detectors (3 pins) and infrared leds, I only have Photoresistor (2 pins)a and IR Transmitter .
Regards
IR detector LED to do what you want.
IR detector:
http://www.parallax.com/detail.asp?product_id=350-00014
IR emitter
http://www.parallax.com/detail.asp?product_id=350-00003
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Beau Schwabe
IC Layout Engineer
Parallax, Inc.
http://www.chilebot.cl/guias/sensor-ldr.php#comment-43
You can scrounge an IR receiver from a VCR. They all have them, but you may have to experiment a little to figure out the frequency.
Jonathan
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www.madlabs.info - Home of the Hydrogen Fuel Cell Robot
I only have the emiters, I dont have any equipment that I dont use.
BTW) The link that you provided uses a WHITE LED not an IR LED. In the parts list for that circuit "LED Blanco cristalino" translates to a "CLEAR WHITE LED"
What you are asking with the IR LED and photo resistor is like trying to see in the dark with a pair of sun glasses.
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Beau Schwabe
IC Layout Engineer
Parallax, Inc.
No, the IR LED will not work with the photo resistor.
There are two possibilities that I can tell:
· 1) Any visible LED such as GREEN,RED,YELLOW,BLUE, or WHITE will work with the photo resistor.
· 2) A solar cell, photo transistor, or IR receiver LED will work with the IR emitter LED.
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Beau Schwabe
IC Layout Engineer
Parallax, Inc.
Post Edited (Beau Schwabe (Parallax)) : 9/11/2006 6:09:51 AM GMT