go_away

Author Topic: How do I know if my photoresistors are damaged?  (Read 1749 times)

0 Members and 1 Guest are viewing this topic.

Offline garriwilsonTopic starter

  • Supreme Robot
  • *****
  • Posts: 345
  • Helpful? 0
How do I know if my photoresistors are damaged?
« 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?

Offline hazzer123

  • Supreme Robot
  • *****
  • Posts: 460
  • Helpful? 3
Re: How do I know if my photoresistors are damaged?
« Reply #1 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.
Imperial College Robotics Society
www.icrobotics.co.uk

 


Get Your Ad Here