How to use BUTTON command right?

Hi,

I'm trying to switch a relay on and off with the help of BUTTON and TOGGLE command.

It's working but not the way I want it to work, because when I press the button
the relay is switching on and off like a old fasion doorbell.

How do I make a "while button is pressed just toggle once and then wait to next
time the button is pressed" before switching again?

Gert

Hi, Gert

And what about showing us some of your lines ????

Alain

Hi Gert,

I think this is what you may be after:

Code:

---

' ---------- [ I/O Definition ] ----------
TRISC = %00000001      ' Set PORTC (0-2 input) rest Outputs
PORTB = 0

' ---------- [ System Inputs ] ----------
Switch      Var PORTC.0        ' Momentary Switch on PORTC.0


' ---------- [ System Outputs ] ----------
RedLED      VAR PORTB.1    ' All LEDs connected
                            ' between RC pins and
                            ' ground via resistor

Main:
    If Switch=1 Then                      ' If button is pressed:
        Toggle RedLED                    ' Toggle the LED
        loop: If Switch=1 Then Goto loop  ' Wait until the button is released
    Endif
Goto Main

---

Regards,

Steve

Is this wht your after try it and lets us know
it uses 1 button to turn led on/off

led1_status var bit
button1 var portb.0
led1 var portb.1
main:
if button1 = 1 then ' if the button is pressed

if led1_status = 1 then ' if its last state was 1

led1_status = 0 ' make it 0
low led1
pause 500 'debounce

else

led1_status = 1 ' the last state was a 0 so now make it a 1
high led1
pause 500 'debounce

endif

endif


chuck

I see that i missed the goto main of at the end

i see that Tissy replied beofre me that must have been while i went and add a coffie but at least you have got to ways of doing it now

chuck

Hi,

Thanks to Tissy and Chuck for your examples.

I can conclude that you don't use the BUTTON command when you "read" a switch.
I just thought that it was possible to set up all the parameters with the BUTTON command.

But I think that your examples teach me that using IF - THEN and GOTO or WHILE - WEND gives me much better possibilities.

Gert