Wednesday, January 12, 2011

Simple Light or Dark Activated Switch Circuit

This is a basic circuit that can be constructed by students.

It uses a transistor as a switch, LDR as the sensor, variable resistor for calibration, diode as a snubber and the relay as the switching component.

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1 comment:

Anonymous said...

What's the voltage,
What's the Pot value
What's the relay value
I'm an amateur at electronics and
wish to make a garden light

March 19, 2012 at 8:56 AM

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