I need to control temperature on 4 DS18B20 sensors, What I want to do is be able to set the trigger temperature for each sensor using the adafruit LCD Shield buttons.
I will most probably change the 16x2 LCD for a 16x4 or even a 32x4LCD.
You could have your code examine the buttons, if it was up/down you select the trigger variable in question.
Left/right would increment/decrement the value.
Use, buttons = lcd.readButtons(); to read the buttons.
May have to hold down the button for a fraction of a second to be detected.