Make:

I used something like this in a project I was working on. Though I think this could be compacted further. If you use a simple counter 'while' or 'for' loop, you can have the led turn on, or the function occur right when the threshold between a 'press' and a 'hold' is crossed.

Attach this function to an interrupt pin

int ButtonCheck(){
count = 0;
while(digitalRead(But)==HIGH){
delay(10);
count++;
}
if (count > 100){ /button held
return 2; /button held
else if count > 0
return 1; /button pressed
}
}

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In Proton basic (for the PIC micro), I used a while loop to achieve more than one "press and hold" for a button... you'll want to have some means of alerting the user they are achieving these different states ... perhaps an led turns on when state 2 is achieved, and starts to blink once state 3 is achieved.

I don't have the exact code handy but something like this:

buttonpress: ' jump here using proton's built-in button debounce routine
counter = 0
while portc.1 = 1
counter = counter + 1
if counter > 200 then goto longpress1
delayms 10
wend ' if user lets go before 2000 ms, consider it a short press

' short press code goes here
some commands
return

longpress1:
counter = 0
while portc.1 = 1
' if portc.1 is still high, button is still held down
counter = counter + 1
if counter > 300 then goto longpress2
delayms 10
wend ' if user lets go before 5000 ms elpases, consider it a medium press

' medium press code goes here
some commands
return

longpress2:
' button was held down for 5 seconds, power down or something
return

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