my buttons when read are centered at these valies: 0, 144, 329, 504, 741
I've got lots of questions about this but let's start with these comments: // my buttons when read are centered at these valies: 0, 144, 329, 504, 741 Where do these values come from? // we add approx 50 to those values and check to see if we are close Why do we add approx 50 to each value?
Also, where did you find the info that pins Arduino (RS, E, D4, D5, D6, D7) interface with LCD pins (8, 9, 4, 5, 6, 7)?I found this schematic but I can't see that it provides this info anywhere.
The shop I bought the Uno and the shield at said they plug together. The pins all line up only one way.See attached photos. Thats how the screen looks no matter what I do. The only time it changes is when I reset it and then it blinks off then back on.