This circuits consist of two parts, the first part will transmit a signal, and the second part will detect that signal and trigger a relay.To adjust the circuit, hold down S1 while pointing LED1 at the receiver. Adjust R6 until you hear the relay click. You can increase range by using a high output LED for LED1. Bright light will stop the receiver from responding to the transmitter.
The Receiver and Transmitter circuit Please, see and read more
http://www.newcircuits.com/circuit.php?id=sec002
Thank you.
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This entry was posted on Monday, November 19th, 2007 at 11:53 pm and is filed under Digital, Electronic Control, RF-Radio Frequency.
