[Hai-users] input debounce or swinger control

[John Purnell]

Hi Listers,

I'm looking for an easy way to start an action based on an input but 
only after input has been activated for say 5 seconds. In all my 
security panels I can program an input time for the system to ignore 
the input until that time has expired. I think they call a bouncy 
input a "swinger", (hey... big spender...)

I have a hot tub with a separate pushbutton for the tub light. I 
wired everything up and paralleled a relay off that circuit and now 
when I push the light on I raise the tub temp by 1F. Works great, no 
getting out of the tub to walk into house to keypad to raise temp 
just for a few minutes when you want that little extra oomph. (you 
know before you've used up all your Tanqueray and tonic you took with 
you into the tub...)

But, in the ever-constant search for perfection, I'd like to delay 
this temp raise by a few seconds so that when I really want the 
super-jets on but not the temp raise, and I accidentally press the 
wrong push-button (remember, I'm on T&T by now...) and instead of the 
super-jets, I hit the light, then quickly turn light off and find 
super-jet button, I don't want system to react. I can wait 5 seconds 
to make sure the user has made the correct choice.

In my access control panels at work I can just program in a swinger 
delay of 5 sec, so the system won't react until the input has been on 
for that duration.

is there a simple way programmatically to do this in OP2? Or would I 
have to go through the whole scenario of watching for the input to 
change, then set a delay timer on a flag and wait for the delay to 
time-out then if input still high do the maneuver...yaddayadda...

I just wonder if I'm missing a simpler way to do this.

I would like to use this same delay on my driveway sensor which 
really bounces when cars come through, and my front porch IR beam, 
which also will pop on/off very quickly as your leg breaks beam, then 
clears, then your next leg...etc, so my alerts kinda go crazy. I was 
hoping to avoid an external timer circuit and just do with HAI programming.

Thanks for any ideas.

John.
Wisconsin.
jpurnell.com