Pushbutton - normally open

Tony11

What I need help with, is. I want to know how to program pushbutton switch and led. When you push and let go of the switch, led will turn on and stay on, till you push the switch, for the second time. Then led will go off. So like A Latch.




I do know how to program ButtonToLed.

'' File: ButtonToLed
'' Led mirrors pushbutton state.
PUB ButtonLed    ' Pushbutton/Led Method
dira[noparse][[/noparse]6] := 1    ' P6 → output
dira[noparse][[/noparse]22] := 0    ' P22 → input (this command is redundant)
repeat    ' Endless loop
outa[noparse][[/noparse]6] := ina[noparse][[/noparse]22]    ' Copy P22 input to P6 output

Thank you

Kye

PUB buttonLatch(inPin, outPin)
 
  dira[noparse][[/noparse]outPin] := 1
  dira[noparse][[/noparse]inPin] := 0
 
  outa[noparse][[/noparse]outPin] := ina[noparse][[/noparse]inPin]
  repeat
 
    repeat while(ina[noparse][[/noparse]inPin] == 0)
    waitcnt((clkfreq / 100) + cnt) ' Debounce timeout.
    repeat while(ina[noparse][[/noparse]inPin] == 1)
    waitcnt((clkfreq / 100) + cnt) ' Debounce timeout.
 
    outa[noparse][[/noparse]outPin] ^= 1 ' Flip out pin state.

This should work. I reconmend looking for the button debouncer driver I posted in the obex and using it to look for when the button has been pressed. Each time the button is pressed you simply flip the out state.







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Nyamekye,

Tony11

What is the obex? I reconmend looking for the button debouncer driver I post. Where can I
find this post?

computer guy

obex.parallax.com/objects/585/

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