Trying to build a numeric keypad from scratch...

[djsunkist]

I'm a student working on my final project (just passed my first CLAD exam!)

I'm trying to use a Boolean array to generate a 4-digit passcode. So far I am able to get the correct # to show up, but I want to eliminate the -1 default for no input. I'm having to run continuous because of that darned -1, which is defeating the point of enabling/diabling the alarm. Eventually I would like to concatenate the four digits and compare to a constant to arm/disarm. This VI will be added to another VI w/ NI Elvis board w/ multiple emitter-detector sets, which I have working fine. I would like to add this feature to enhance that one.

Can anyone help?

Here's what I have so far:

[Harold_Timmis]

add a plus one after the search 1D array

[Harold_Timmis]

check that what values are you looking for? I am getting correct values except I get -1 when nothing is hit is this the problem?

[Dennis_Knutson]

Use an event structure.

[NitzZ · Accepted solution]

Hi,

This is the easiest way to do it. Create event for the buttons and use a case structure for checking the -1... Check the attached vi. This takes an input password length of 5 characters.. after that it stops...

Regards,

Nitzz

(Kudos are always Welcome, Mark as a solution if it is the One;))

[NitzZ]

Oh, Dennis has already told this..:)

[djsunkist]

Wow, exactly how I need it to work!

Thank You so much!

I haven't worked w/ the event structure before this: very interesting.

Looks like I can equal the result to a string constant to remain running and not-equal to the stop button as well - Perfect!

Kudos and Thanks Again

LabView Rocks!!!

[NitzZ]

Hi,

You may Accept it as a solution if your problem is solved so that others can also refer it when required.

Regards,

Nitzz

(Kudos are always Welcome, Mark as a solution if it is the One)

[Harold_Timmis]

you should also make the number pad a cluster like this:

[NitzZ]

Hi Harold, 

That's really nice..:) Ideal way to program ....!!!

Regards,

Nitzz