Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would
be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate
that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views.
It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if
you would like to post something on RF Cafe's
page, please do.
Below are all of the forum threads, including all
the responses to the original posts.
Post subject: replacing a photo sensor with RF Posted: Thu
Apr 12, 2007 7:28 pm
Joined: Wed Nov 02, 2005
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.
Post subject: Posted: Thu Apr 12, 2007 7:28 pm
Joined: Wed Nov 02, 2005 1:50 pm
...or even a garage
Post subject: Posted: Wed
Apr 18, 2007 4:06 pm
Joined: Mon Jun 27,
2005 2:02 pm
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.
Post subject: Please contact RF CafePosted: Tue May 15, 2007 9:07
Joined: Sun Aug 03, 2003 2:02 pm
Location: Erie, PA
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