Search found 5 matches

by deanp
Sat Jul 29, 2006 7:20 pm
Forum: General Discussion
Topic: Small Wireless Contact Switch
Replies: 19
Views: 2874

I got the RC car/pens I ordered today. They are very cool. I believe they are IR (they have an LED that isn't visible on the transmitter). But they are operate in a surprisingly non-line-of-sight manner. If I hold the transmitter on the opposite side of my body from the tiny car, it won't operate. B...
by deanp
Fri Jul 28, 2006 6:34 am
Forum: General Discussion
Topic: Small Wireless Contact Switch
Replies: 19
Views: 2874

Thanks for the additional information on the tiny RC cars. Yes, they do appear to be radio frequency, and hence none line of sight. I'm looking forward to receiving the ones I ordered so I can play with them.

--Dean
by deanp
Thu Jul 27, 2006 7:52 pm
Forum: General Discussion
Topic: Small Wireless Contact Switch
Replies: 19
Views: 2874

First, if I can go directly from a small transmitter I can trigger from my finger to the other side of the room (25ft away) that would be great. I just figured it would be more tractable (lower power, smaller components) from my finger to my belt. I know I can easily get a signal from my belt across...
by deanp
Thu Jul 27, 2006 5:38 pm
Forum: General Discussion
Topic: Small Wireless Contact Switch
Replies: 19
Views: 2874

Thanks everyone for the warm welcome! I certainly don't have any nefarious intent in mind with my application. I'm into magic, and I'd like to be able to trigger a remote event (e.g. a sound generator at the back of the room) with the most subtle of hand cues. I'm not at all adept at circuit design,...
by deanp
Thu Jul 27, 2006 2:57 pm
Forum: General Discussion
Topic: Small Wireless Contact Switch
Replies: 19
Views: 2874

Small Wireless Contact Switch

I'm hoping someone can help me solve what might be a challenging electronics problem. I need a short range (3ft), wireless, battery-powered contact switch in as small a form factor as possible. What I'm looking for (ideally) is some kind of transmitter I can wear inconspicuously on my ring finger th...