Potential Divider using LDR - Electronic Circuits Projects Diagrams Free

electroblob · 31st August 2003, 01:17 PM

I'm making a circuit for an automatic dusk/dawn curtain operator. I'll probably use a potential divider, but does anyone know how to apply that to an LDR?

Cheers

Electroblob. :roll:

P.S. If anyone has any other ideas of how to make the circuit work, they would also be really useful. Thanks.

**kinjalgp** · 31st August 2003, 02:06 PM

Quote:

but does anyone know how to apply that to an LDR

Same as you apply to standard resistors. Afterall LDR is also a resistor but a variable one.

nettron1000 · 31st August 2003, 02:53 PM

Not sure what you're using , but ive built light sensor circuits using LDRs and comparators based on the circuits found on the page in the link below.

http://home.cogeco.ca/~rpaisley4/Comparators.html

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31st August 2003, 01:17 PM	(permalink)
electroblob	Potential Divider using LDR I'm making a circuit for an automatic dusk/dawn curtain operator. I'll probably use a potential divider, but does anyone know how to apply that to an LDR? Cheers Electroblob. :roll: P.S. If anyone has any other ideas of how to make the circuit work, they would also be really useful. Thanks.

31st August 2003, 02:53 PM	(permalink)
nettron1000	Not sure what you're using , but ive built light sensor circuits using LDRs and comparators based on the circuits found on the page in the link below. http://home.cogeco.ca/~rpaisley4/Comparators.html __________________ Two roads diverged into a woods...i took the one less travelled by. R. Frost.