Circuit Project Electronic

An Infra Red wired Repeater circuit to control appliances from a remote location.
The signal emitted by an IR remote control contains two parts, the control pulses and a modulated carrier wave. The control pulses are used to modulate the carrier, a popular modulation frequency being 36 and 42KHz. The signal is radiated by an IR diode, typical wavelengths in the 850 and 950 nm region of the electromagnetic spectrum. Although this light is invisible to the human eye, it can be seen as a bright spot with a camcorder or digital camera.

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Read More Source:Andy Collinson
http://www.mitedu.freeserve.co.uk/Circuits/Interface/irext4.htm
Thank you.

This entry was posted on Monday, April 21st, 2008 at 10:24 am and is filed under Electronic Control, Lighting. You can follow any responses to this entry through the RSS 2.0 feed.