output serial monitor, goes on and on and on

hi,

i'm new forum, , after reading lots of different tutorials , try find solution problem myself i'd hope somebody
can me.

hi have push button , led light, want serial monitor following. report on/off 1 time per change.
so lets led off, there should in serial monitor 1 time off, until next change taking place.
zo somiting like
off
on
off
on
off
on

i tried delay , other possibilities no success

the next project want make pushbutton led, led show how many times button has been pressed, 1 time blink once en delay 5 sec. , if pressed blink 2 times , delay 5 sec. hope can magage myself

it sounds need keep record of last state.
then, each time through "loop()" see if state read button has changed.
if has, print new state, , store new state.

(uncompiled, untested)

code: [select]


byte laststate;
...
...
void printstate (byte state)
{
 serial.println(state ? "high" : "low");
}
..
..

void setup ()
{
 ...
 laststate = digitalread (buttonpin);
 printstate (laststate);
}


void loop ()
{
  byte newstate = digitalread (buttonpin);
  if (newstate != laststate) {
     printstate (newstate);
     laststate = newstate;
  }
}

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