I have brought this 20x4 LCD: http://www.sparkfun.com/products/256 and am trying to get it to work with this 4:16 mux: http://www.sparkfun.com/products/9056 . I am able to control other thinks like LEDs, read the value from at potentiometer and turn on a laser. But I have big trouple in controlling my LCD. I have been trying to modify the LiquidCrystal library so that I would change the mux-port just before each digitalwrite within this library and even tried with a delay in between. All with no luck. I have been searching google (a lot!) just cant seem to find any ideas.
Any ideas? please help.