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You are here: Home / Replies / hello Aina,Mostly LDR is used

hello Aina,Mostly LDR is used

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Microcontroller › AVR › How to switch off the appliance › hello Aina,Mostly LDR is used

May 18, 2011 at 7:24 am #6268
dagakshay
Participant

hello Aina,

Mostly LDR is used for making smoke detector sensors.

http://electroschematics.com/2545/smoke-detector-circuit/

http://www.zimbio.com/id-Wireless/articles/xytGCwM8LuS/Smoke+Detector+circuit+Using+LDR+circuit+explanation

http://www.zimbio.com/id-Wireless/articles/xytGCwM8LuS/Smoke+Detector+circuit+Using+LDR+circuit+explanation

http://www.sensorcircuitdiagram.com/2010/11/23/smoke-detector-circuit-based-on-the-tda2002-ic/

 

use the output dirctly from emitter of transistor transistor… you need not use the rest of the ckt.

wysiwyg_imageupload:1073:

 

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