Using Millis to Turn On/Off Relay for a set interval

[gcjr]

@flashclass

ok, you took this to a whole new level

i think it's important to see different ways to solve problems.

first, set File->Preferences->Compiler Warnings to "More". this way the compiler will generate warnings when simple mistakes are made (e.g. = instead of ==)

@flashclass

Why have you assigned const bytes to the inputs and outputs?

it is a Constant (which should be Capitalized) which will make others reading the code aware of and which the compiler will generate an error if the code should attempt to assign a value to

@flashclass

Also, in this chunk of code you define the Start and Stop ints, but further down they are redefined using the values I had set?

i used a c-preprocessor directive to easily set values more appropriate for MyHardware. i wanted the range to be smaller because the MultiFunction Shield i test with has a multi turn pot and i didn't want to wait 15 and 30 sec.

@flashclass

I was dead set on using the millis function but looking at what you've done the delay makes much more sense because pressure does not need to be monitored during the solenoidInterval and warmInterval times, because it won't be changing!

in this case yes.

but what if you wanted to be able to hit a button to immediately stop the compressor?

@flashclass

Once in ST_Run the program will loop through the monitor section until I hit the RedEnd again which will initiate the ST_shutdown case?

yes. but the shutdown case executes just one cycle before advancing to ST_IDLE.