Controlling a Relay based on CDS Cell status..
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A while back, someone had posted a link to a site that had assorted
schematics on it - which I can no longer locate.. I was looking for a
schematic for a small circuit, which will turn a relay/LED/transistor on or
off depending on the state of a CDS cell. I need to be able to turn on a fan
depending on the lighting conditions in a room - so this should be a very
simple circuit (if you happen to have it!).
In advance, thanks.
John
schematics on it - which I can no longer locate.. I was looking for a
schematic for a small circuit, which will turn a relay/LED/transistor on or
off depending on the state of a CDS cell. I need to be able to turn on a fan
depending on the lighting conditions in a room - so this should be a very
simple circuit (if you happen to have it!).
In advance, thanks.
John
Comments
schematics on it - which I can no longer locate.. I was looking fora
schematic for a small circuit, which will turn a relay/LED/transistoron or
off depending on the state of a CDS cell. I need to be able to turnon a fan
depending on the lighting conditions in a room - so this should bea very
simple circuit (if you happen to have it!).
In advance, thanks.
John
·
Hey John!
I noticed no one has answered your question yet....
Go to Radio Shack and get the Forest Mims Optoelectronics Mini Notebook.
I contains an number of CDS cell circuits that will fit your mold nicely.
Finally a question I can answer.
Rus
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