Introduction: How to Make a Dark Sensor

Hello everyone . This is my frist instructable on this site ..This idea came in my mind when i was reading of automatic street light . Here i have show an easy way to make a dark senensor it sence dark and then a light will glow automaticly . It is also helpfull in making of LFR-line following robot. The part are very cheap and can find on a simple electronic store..also

Step 1:

1.Battery (3v-4.5v) 2.LDR 3.Transistor (BC547B NPN) 4.LDR 5.LED

Step 2: Circuit

Step 3: Video

here is a vedio by wich you can learn how to make it easily

Comments

author

Nice job!

author

thankyou

author
anuragpandey (author)2014-06-20

Cool project dude really awesome creaton good thinking

author
eagleanurag (author)anuragpandey2014-06-20

thanks..

About This Instructable

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Bio: My Name is Anurag Pandey. I'm form INDIA .I'm an Engineer and love to make stuff related to Robotics and all Engineering branches ... More »
More by eagleanurag:Simplest Line FollowerRemote Testing (woking/not working)How to make a Dark Sensor
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