Comments on: Dark/Light sensor using transistor http://www.buildcircuit.com/darklight-sensor-using-transistor/?utm_source=rss&utm_medium=rss&utm_campaign=darklight-sensor-using-transistor Take your lab to home Sun, 20 May 2012 12:46:25 +0000 hourly 1 http://wordpress.org/?v= By: ram http://www.buildcircuit.com/darklight-sensor-using-transistor/#comment-1745 ram Sat, 05 May 2012 06:18:07 +0000 http://www.ldrengineering.org/?p=53#comment-1745 tanx a lot........... tanx a lot………..

]]> By: Geo http://www.buildcircuit.com/darklight-sensor-using-transistor/#comment-1398 Geo Tue, 06 Mar 2012 05:39:10 +0000 http://www.ldrengineering.org/?p=53#comment-1398 can you make the dark sensor work with the joule thief? can you make the dark sensor work with the joule thief?

]]> By: Jim http://www.buildcircuit.com/darklight-sensor-using-transistor/#comment-1370 Jim Thu, 01 Mar 2012 01:05:19 +0000 http://www.ldrengineering.org/?p=53#comment-1370 Hi, I want to build a circuit that will turn a small motor in one direction when light is present and then reverse the motor when the light is out. This circuit will be used to open a door in the morning when the sun comes up. After the door is completely open, it will trigger a limit switch to stop the motor. When darkness falls, the motor will need to run in reverse to close the door. When the door is closed, it will also need to trigger a limit switch to stop the motor. Is this possible? Thank you! Hi, I want to build a circuit that will turn a small motor in one direction when light is present and then reverse the motor when the light is out.

This circuit will be used to open a door in the morning when the sun comes up. After the door is completely open, it will trigger a limit switch to stop the motor. When darkness falls, the motor will need to run in reverse to close the door. When the door is closed, it will also need to trigger a limit switch to stop the motor.

Is this possible? Thank you!

]]> By: park47 http://www.buildcircuit.com/darklight-sensor-using-transistor/#comment-1240 park47 Tue, 14 Feb 2012 20:57:36 +0000 http://www.ldrengineering.org/?p=53#comment-1240 Thanks, after a long search...this is the most complete DIY exist. I could successfully done both L/D sensor.. :) Thanks, after a long search…this is the most complete DIY exist. I could successfully done both L/D sensor.. :)

]]> By: rexleeguzman http://www.buildcircuit.com/darklight-sensor-using-transistor/#comment-1173 rexleeguzman Thu, 02 Feb 2012 13:45:28 +0000 http://www.ldrengineering.org/?p=53#comment-1173 Sir...can i make a color sensor composed of red, green, blue, yellow, and orange. Can i use these LDR's to make a color sensor like these? And can u help me make a schematic diagram on these. Thankz You... Sir…can i make a color sensor composed of red, green, blue, yellow, and orange.

Can i use these LDR’s to make a color sensor like these?

And can u help me make a schematic diagram on these.

Thankz You…

]]> By: rizwan http://www.buildcircuit.com/darklight-sensor-using-transistor/#comment-1057 rizwan Wed, 25 Jan 2012 09:08:12 +0000 http://www.ldrengineering.org/?p=53#comment-1057 MY Group make this project.....<3<3 MY Group make this project…..<3<3

]]> By: mukesh jaiswal http://www.buildcircuit.com/darklight-sensor-using-transistor/#comment-753 mukesh jaiswal Sun, 15 Jan 2012 16:03:32 +0000 http://www.ldrengineering.org/?p=53#comment-753 i want to make a sensor siren using LDR .can u sent me a diagram please. i want to make a sensor siren using LDR .can u sent me a diagram please.

]]> By: lanny gibbs http://www.buildcircuit.com/darklight-sensor-using-transistor/#comment-653 lanny gibbs Tue, 10 Jan 2012 17:45:09 +0000 http://www.ldrengineering.org/?p=53#comment-653 can you show me a digrame of how i can make a automatic dark detector 12v dc using a led tail light thank you and god bless can you show me a digrame of how i can make a automatic dark detector 12v dc using a led tail light thank you and god bless

]]> By: Manzoor http://www.buildcircuit.com/darklight-sensor-using-transistor/#comment-75 Manzoor Thu, 01 Dec 2011 12:45:09 +0000 http://www.ldrengineering.org/?p=53#comment-75 thnx i will try it inshaallah gr8 thnx i will try it inshaallah gr8

]]> By: evill http://www.buildcircuit.com/darklight-sensor-using-transistor/#comment-74 evill Thu, 17 Nov 2011 18:40:32 +0000 http://www.ldrengineering.org/?p=53#comment-74 i want to make a lamp for my aquarium with dark sensor. i want to use 6 white leds 5mm..can u pls post a diagram for me to follow. thanks i want to make a lamp for my aquarium with dark sensor. i want to use 6 white leds 5mm..can u pls post a diagram for me to follow. thanks

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