Assigning pins?

Projects Programming
1

I am trying to programme a mega 2650 to activate the relevant relay using PWM depending on the analogue input value, but I'm stuck at knowing which pin is which.
I shall have at least 4 pairs of analogue inputs and 4 pairs of PWM outputs for it to cycle through.
Any info and examples I can find refer to Duemilanove or smaller boards.

Do the numbers continue in the same series for boards with more pins?

2

I am trying to programme a mega 2650 to activate the relevant relay using PWM

Whoa. Stop. PWMing a relay is a really bad idea.

ut I'm stuck at knowing which pin is which.

Why? The pins on my Megas are clearly labeled.

Do the numbers continue in the same series for boards with more pins?

Mostly. Most of the extra digital pins are across the end, where the Duemilanove and UNO have no pins.