Any one knows how the LINITX 7'' TMR screen senses the light change and increase the brughtness? it looks like a LED, it is white and has 3 legs? is that a transistor and where do i get a spare one?
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Any one knows how the LINITX 7'' TMR screen senses the light change and increase the brughtness? it looks like a LED, it is white and has 3 legs? is that a transistor and where do i get a spare one?
It's a resistor sensitive to light. (Φωτοαντίσταση)
But they have 2 legs, not 3. Are you sure it has 3 legs???
If you know exactly the resistance range, you can use any photoresistor you find.
Like this http://cgi.ebay.com/5x-Photo-Light-D...item3ca8be132c
Some have infinite resistance when they get 100% light, some others the opposite...
no you are right..it is a light resistance..and yes i checked it out..it does have 2 legs..