IR project for beginner - Electronic Circuits Projects Diagrams Free

Anonymous · 7th July 2002, 09:04 AM

Looking for information on building a infrared sensor.

I am just starting to get into electronics and wanted to start with a simple
project, an active infrared sensor for the driveway. Nothing fancy simply
to activate a relay when the beam is broken, I have read something about
modulating the infrared frequency to account for ambient light and would
like to incorporate that into the project.

Thanks
polifemo at rcn dot com

Anonymous · 7th July 2002, 09:05 AM

http://www.epanorama.net/circuits/ir_send.html

Found this link on google. Involves a 555 timer to pulse the IR led
to transmit and a receiver module on the other end, or a tuned band
pass filter if you want to learn about filters.

Anonymous · 7th July 2002, 09:06 AM

( I have been searching with Google for three days and I missed that site)
Thanks for the info, it looks like a good start.

polifemo at rcn dot com

deansmith · 16th January 2007, 10:57 PM

click on the link ,for your circuit. its easy to build and all the info is here to download in pdf.

http://www.electronics123.com/s.nl/i...=8&category=43

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7th July 2002, 09:04 AM	(permalink)
Anonymous	IR project for beginner Looking for information on building a infrared sensor. I am just starting to get into electronics and wanted to start with a simple project, an active infrared sensor for the driveway. Nothing fancy simply to activate a relay when the beam is broken, I have read something about modulating the infrared frequency to account for ambient light and would like to incorporate that into the project. Thanks polifemo at rcn dot com

7th July 2002, 09:05 AM	(permalink)
Anonymous	http://www.epanorama.net/circuits/ir_send.html Found this link on google. Involves a 555 timer to pulse the IR led to transmit and a receiver module on the other end, or a tuned band pass filter if you want to learn about filters.

7th July 2002, 09:06 AM	(permalink)
Anonymous	( I have been searching with Google for three days and I missed that site) Thanks for the info, it looks like a good start. polifemo at rcn dot com

16th January 2007, 10:57 PM	(permalink)
deansmith	sensor kit click on the link ,for your circuit. its easy to build and all the info is here to download in pdf. http://www.electronics123.com/s.nl/i...=8&category=43