TOUCH SWITCH WITH RELAY KIT

Touch Switch with Relay Kit The Touch switch may be used to turn on almost anything with a light touch of ‘plate’. The circuit pulls in a relay which remains engaged for anything from five seconds to about a full minute, depending upon you changing just one resistor to set the time amount (default is five seconds). One of the unique features of this circuit is that the touch-plate may be located up to several yards away from the circuit board if necessary. It may also be battery powered if an AC supply is not convenient. An LM555 is used in the heart of the circuit. The relay can handle up to 12A in its contacts. A 12V battery pack or AC power supply is recommended although we’ve used the circuit on an unregulated 9V supply.