IR Remote Extender IR Remote Extender| DISCLAIMER: I\'ve collected these information from different sources. The author may revise this documentation from time to time without notice. THIS DOCUMENTATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN NO EVENT SHALL THE AUTOR BE LIABLE FOR INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY KIND ARISING FROM ANY ERROR IN THIS DOCUMENTATION, INCLUDING WITHOUT LIMITATION ANY LOSS OR INTERRUPTION OF BUSINESS, PROFITS, USE, OR DATA. |
This circuit can be used to
operate a VCR or CD player from another room. It's really an infrared signal repeater. The
signal from the remote is received and then retransmitted over wires to an infrared LED.
The beam from the LED is then picked up by the receiving window on the VCR or CD player.
The visible light LED (LED1) in series with the IR unit (LED2) is used to indicate that
the transmitted signal has been detected. The 100-kW trimmer potentiometer (R1) adjusts
the repeater's sensitivity. The resistor that is usually found in series with the LEDs is
omitted, because the voltage reading is about 1.0 Vdc as a result of the voltage drop
across the lines.
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