The Cyber-Spy.Com Usenet Archive Feeds Directly
From The Open And Publicly Available Newsgroup
This Group And Thousands Of Others Are Available
On Most IS NNTP News Servers On Port 119.
Cyber-Spy.Com Is NOT Responsible For Any Topic,
Opinions Or Content Posted To This Or Any Other
Newsgroup. This Web Archive Of The Newsgroup And
Posts Are For Informational Purposes Only.
Subject: Re: infrared simple circuit
Date: Thu, 26 Sep 2002 00:50:58 +0200
Organization: University of Twente, Enschede, The Netherlands
NNTP-Posting-Date: 25 Sep 2002 22:51:28 GMT
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
"Eitan Herman" wrote in message
> i'm trying to build infra red simple transmitter , and from a reason
> much less powerful than my TV remote, the circuit is simple 9v to the
> led... (i'm using the same infrared LED as the remote)...
> i checked the voltage on the infra-red it seems to be : 1.20v (i'm
> with 7805 but even w/o it i got the same results).
> IR LED resistance(when not connected) is 1.3M OHM.
> P.S the circuit is working but it's less powerfull than the remote.
> schematic --> 9v=7805=IRLED maximum working distance (20-25 cm).
> i have a device that can check the IR power so the reciever was the
> same for my circuit and for the remote control.
> Please Your Advice...
> (if you want to email me directly please email to
> Thanks in advance..
Do you also use winlirc (http://winlirc.sourceforge.net/)?
I tried to make this schematic (http://www.lirc.org/transmitters.html) but
it does not responde at all.
I asked for help on the winlirc site and they told me that it had something
to do with the timing, and that it would be fixed in the next version....
Go Back To The Cyber-Spy.Com
Usenet Web Archive Index Of
The sci.electronics.design Newsgroup