Multi-function interfaces?

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sorry if simple question. i'm trying figure out how design menu based interfaces within ard using 20x4 lcd. while have lcd working fine, , can send data to/from unit, i'm having trouble in figuring out how "switch" between screens.

essentially have 4 function buttons. 1 "increase variable", 1 "decrease variable" functions, 1 'menu or select' , another.. arbitrary functions haven't decided on yet.

what i'd like, have operating screen displays whatever information choose -- , part have already. when user pushes menu button, menu appears. use up/down navigate menu, push 'menu' again , enter settings item. up/down again selects various changeable values, 'menu' again , can edit value. 'menu' exits edit-value.

while i'm passable @ c (i'm better in php or tcl/tk) i'm not quite sure how design program structure kind of interface work in while in loop().

anyone have suggestions or skeleton ideas?



Arduino Forum > Forum 2005-2010 (read only) > Software > Syntax & Programs > Multi-function interfaces?


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