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Electronics => Electronics => Topic started by: garriwilson on August 03, 2007, 10:54:52 AM

Title: How do I know if my photoresistors are damaged?
Post by: garriwilson on August 03, 2007, 10:54:52 AM
I believe my photoresistors got damaged when I was heat shrinking them with a hair dryer, but I am not sure? Is there any way to know if your photoresistors are damaged?
Title: Re: How do I know if my photoresistors are damaged?
Post by: hazzer123 on August 03, 2007, 10:59:30 AM
Measure its resistance when light shines on it, and when light doesn't  shine on it. If it changes its probably not broken. If you don't have a multimeter, then you can use a voltage divider circuit and an LED to see if its resistance changes.