arwen
Newbie level 4
hye..im creating a light sensor. My question is, what is the value of the LDR that i have to used for a 12v supply and how to know what value that i should use?
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Simply reverse the positions of the LDR and R1. Then the LED will light when there is light and it will turn off when there is no light.arwen said:The problem nw is, when there's no light on the LDR, the LED will turn ON but once i put a light on LDR, the LED is OFF.