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Dark Sensor using LDR on Breadboard

It spreads light in the dark and remains off in the light.

 Components:

1) 2 NPN Transistors (Code no: BC547)














2) 1 LED










3) 1 LDR (Light Dependent Resistor)










4) 4 Resistors ( 330 ohms, 470 ohms, 1k ohms, 4.7k ohms)










5) 9 volts battery












Circuit Diagram:



















Schematic Diagram:

 Video:

Dark Sensor using LDR On Breadboard by FunnyVideos123

2 comments:

  1. Unknown13 June 2015 at 01:45

    Hi i am from Pakistan. I made this project and it works on 1st attempt. thanks for sharing us gr8 information !!

    ReplyDelete
  2. Unknown6 December 2015 at 22:32

    Thanks for sharing this.I have to make this project and also have to make a complete report explaining this whole project along with the theory.
    Can someone please help me?

    Thanks.

    ReplyDelete