Dark Detector Alarm By IC Timer 555

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Dark Detector By IC Timer 555
This be Dark Detector Alarm Circuit. By use the integrated circuit timer LM555 or NE555. It is be pillar equipment of the circuit. The sound will silent when the light agrees on LDR or photocell. If have no the light the sound will get back to talk at one time again. A loudspeaker should choose 8 ohm size and 2 in sizes. Request friends have fun Dark Detector Alarm Circuit , please sir.

This entry was posted on Monday, July 16th, 2007 at 8:38 am and is filed under 555, Audio - Alarm, Electronic Control, Lighting. You can follow any responses to this entry through the RSS 2.0 feed.