how can i get a higher voltage output using photo resistor?

[berz_999]

i am using photo resistor as my light detector but the problem is that when there is light the photo resistor make a light to an led which signifies as logic 1 but the problem is that the output voltage is ranging 1.5v-2v.. how can i get a 4.5v if our vcc is 5v so that it could be read as logic 1??

 

[navenmou]

Hi..Please go through below link....
**broken link removed**