nprichards
New Member
I’m trying to build a circuit that uses a photocell to turn on and off a small light. The power source is 12v. I was looking at using RadioShack photocells that produce a dark (i.e. less light) resistance of about 10,000 ohms and a bright resistance (i.e. more light) of about 700 ohm resistance.
How can I use this photocell to turn on a light when the photocell reads dark and turns off the light when the photocell reads bright.
Please keep in mind I don’t have any background in electronics other than what I have been able to research on the Web.
Thanks for any help.
How can I use this photocell to turn on a light when the photocell reads dark and turns off the light when the photocell reads bright.
Please keep in mind I don’t have any background in electronics other than what I have been able to research on the Web.
Thanks for any help.