Thanks Ben for your previous help. My next question concerns the backlight to the LCD. I either wanted it to be off or for the power to be drawn from my external 5V regulator that handles up to 3A. How would I go about doing this?
If I wanted it off, there is a LCD pin on top of the board that I should drive low. Can I connect it straight to ground or should I connect it through a resistor to ground?
I have no idea where to start to power the LCD backlight through an external source.