Character type: What if I want to use VEE and turn on the backlight from PIN15 and PIN16?
Generally speaking, if we use the VEE, the PIN15 would become the VEE output. So we cannot use PIN15 and PIN16 as input for the backlight. But if we put a backlight jumper on J1, J16 could use PIN16 to control the backlight. For details, please refer to the below drawing.