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replacing a photo sensor with RF - RF Cafe Forums
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wsemajb
Post subject: replacing a photo sensor with RF Posted: Thu
Apr 12, 2007 7:28 pm
Captain
Joined: Wed Nov 02, 2005
1:50 pm
Posts: 11
What is required to replace a small board mounted
photo sensor with an RF trigger? I'm just having fun with a little project
and would like to use something cheap and near at hand like a baby monitor
or walkie-talkie to activate a board that is presently activated by
a board mounted two pin photo sensor.
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wsemajb
Post subject: Posted: Thu Apr 12, 2007 7:28 pm
Captain
Joined: Wed Nov 02, 2005 1:50 pm
Posts: 11
...or even a garage
door opener?
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IR
Post subject: Posted: Wed
Apr 18, 2007 4:06 pm
Site Admin
Joined: Mon Jun 27,
2005 2:02 pm
Posts: 373
Location: Germany
If I understand
you correctly, you will basically need a transmitter and receiver. There
are IC's of this kind operating in the ISM freuqncy bands for example
434MHz, 868MHz, 915MHz etc. The receiver will detect the transmitted
signal and generate a trigger that will operate/enable your circuit.
Hope this helps.
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Kirt Blattenberger
Post subject: Please contact RF CafePosted: Tue May 15, 2007 9:07
am
Site Admin
Joined: Sun Aug 03, 2003 2:02 pm
Posts: 308
Location: Erie, PA
Greetings wsemajb:
You have
been selected as a winner in the April 2007 Forum drawing. I sent an
e-mail to your registration address, but have not received a reply yet.
Please contact me at the e-mail on the Contact Us link in the upper
right of the page.
I put a notice in the "Win a Free RF Cafe
T-Shirt or Mug" forum. Thanks.
_________________
- Kirt Blattenberger
RF Cafe Progenitor & Webmaster
Posted 11/12/2012
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