dhenry:
What's the best way to go about that?
It is fairly simple:
button=read_button(button_pin); //read button on button_pin
switch (button) {
case 'U': //up button is pressed
app_index = (app_index)?(app_index-1):MAX_APP; //update app_index
break;
case 'D': //down button is pressed
app_index = (app_index==MAX_APP)?0:(app_index+1_; //update app_index
break;
default: do_something(); //illegal key press. do something / nothing
}
switch (app_index) {
case 0: app0(); //run 1st application
break;
case 1: app1(); //run 2nd application
break;
...
}
You can start to fill the various boxes / functions. For example, if you use analog buttons, you just need to implement it in read_button(); and you can put your coolant / flowrate display in app0(); your fan speed/voltage in app1(); ... It cannot be simpler than that, once you cut it down to logical blocks and implement those blocks one at a time.
ok so where exactly do I put my functions? do I put it in app0(xxxx);?