hi, i am new around here. i want to know more about how an led can be lit
when the input is a square wave (fed to pic via RB0/int) and the led has to
be lit with a high pulse of square wave and is off when pulse is low.
so logic 1 on square wave = LED on
    logic 0 on square wave = LED off
i also need to know whether this sort of an app will require the use of
interrupt on rising edge feature only or timers as well?

a textual or code explanation will do. thanks and looking forward to.

2. how is the ADC result is used when its finally converted? i mean, how to
use the 10 bit result to do something? some code explanation will do.

3. do interrupts and timers always have to work together?
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