Touch Switch LED

175

01:54:04

Simple circuit to turn on led by using your finger.  The push button and large resistor simulate a touch.

published 11 years ago

Voltransistor

11 years ago

Nice! :-) BTW, the 8.21K-Ohm resistor is pointless. It's just in parallel with the LED and its current limiting resistor.

rubenfixit

11 years ago

True, I was experimenting with resistor values to ensure that the led is off when no finger is present.

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