LDR Crcuit on Copper Breadboard

R

ryanmc

New Member

• Nov 15, 2009

• #1

Hi can any 1 tell me or show me how to make an LDR circuit on a copper strip breadboard so that the LED lights when the lDR is in darkness thanks. The power supply is from a 9v battery.

 

Last edited: Nov 15, 2009

MrDEB

Well-Known Member

• Nov 15, 2009

• #2

here is a schematic

assuming you can read a schematic?
if not then maybe I can draw with boxes etc.
the schematic has a potentiometer in place of the LDR. not a big deal.

 

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• ldr circuit.PNG

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R

ryanmc

New Member

• Nov 15, 2009

• #3

I can read that drawing but im still not sure how they would all be placed on the copper matrix board. I have drawn a schematic and in mine I have got 3 resistors the LDR an LED and an npn transistor just not sure where to place them all on the matrix board**broken link removed** that image is the type of board i am talking about exept black strips are copper.

 

Last edited: Nov 15, 2009

R

ruchiporob

New Member

• Nov 15, 2009

• #4

hey,u have to make series and parallel connections with wires on the copper breadboard....check the connections on the schematic and make them ditto on the board..simple.

 

Last edited: Nov 15, 2009

MrDEB

Well-Known Member

• Nov 15, 2009

• #5

this should help

just cut traces where they are not needed

 

Attachments

• strip board.PNG

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R

ryanmc

New Member

• Nov 15, 2009

• #6

thanks for the replies