A fast PCD8544 library (Nokia 5110)

Using Arduino Displays
44

TheCoolest:
You may be right, but again as I said all displays are different and what works for one doesn't necessarily mean it will work for another.
If you want to 'constrain' the values you can simply do cnt &= 0x0F; and then this->writeLcd(LCD_COMMAND, 0XB0 | cnt);.

TheCoolest,

I support your statements.

So, will you add contrast control to your next revision?