LDR to 16F877A

Hi.
Anybody can provide me a sch how to connect LDR to the analog input of 16F877a. What is the suitable max resistance do I need for the LDR?

The circuit really depends on the type of ldr and the light conditions. More details please.

Thnks misterg for responding.

The LDR is for my robot project. http://letsmakerobots.com/node/6408

I need the LDR as a light sensor but not sure how to conect to PIC and either to use the analog input or use the comparator on the PIC. I am not really understand how comparator works. still in learning stage.

Hope you or somebody in this forum can give some guide.

Thanks.

Here's a link to using CDS cells with PBP. http://www.rentron.com/Micro-Bot/CDS.htm

Thanks Bruce.
Theres a lot of info there.Good for beginners like me.