I need to set up 2 buttons to take input from the user, that increase and decrease a variable, it doesn't matter which 2 buttons are used, but preferably the up and down arrows. And I also need to have a display of the variable that constantly updates as it is changed by the user.
Basically what I'm doing is creating a simulated datalogging program used on a car's ECU. So the up and down arrows would be controlling my throttle position percentage. And the display would be constantly showing the percentage of throttle the user is controlling. I already have all the forumulas I need for all the other sensors I plan on showing (RPM, KPH, MAP sensor value, Air/fuel ratio etc etc.) I just need some sort of base sample of code of how to take the user's input in this style and have a constantly updating display.