digital waveform to boolean value

[sunny dee]

Hi, I have a digital waveform and I want to be able to light up an LED on the front panel every time the waveform is high...

What is the best way to do this?

I know there is a vi that converts a digital waveform to a 2D boolean array, but I just want a single boolean value.

Thanks!

Sunny

[becktho]

Hi

If you have the data, you can convert it using the mentioned function and loop through it.

Hope this helps.

Thomas

[unclebump]

How many individual signals are in your digital waveform?? Do you want the LED on when any of the signals is high??

[sunny dee]

there are 4 digital signals, and I have a seperate LED for each signal.

[becktho]

Hi

In reference to my previous post, you can just leave the inner for-loop, but you have to extract the 4 channels.

Just have a look at the picture.

Hope this helps.

Thomas

[sunny dee]

thanks a lot! you've been very helpful...

Sunny 😄

[GOB34]

Sorry to dredge up an old thread, but I am trying to do the same thing.

@becktho recommended the following:

GOB34_0-1725376625883.png

When I try that, I have an error because the digital waveform has different dimensions:

GOB34_3-1725376879990.png

Note that the DI digital waveform is formed by this:

GOB34_4-1725376955444.png

That reads 3 channels of digital in. 

This works but it seems excessive, is it what I have to do?:

GOB34_1-1725376697502.png

Thanks!

EDIT: actually my solution is not working, it doesn't correlate the digital signals to what they "should" be. So what i think should be 2 in the innermost loop is not the output from what I think should be coming out on channel 2. It is actually what is coming out on channel 0.

[GOB34]

This seems to do it - but is there a better way?

GOB34_0-1725379820831.png

[GerdW]

Hi GOB,

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@GOB34 wrote:

This seems to do it - but is there a better way?

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Whenever you duplicate identical code you should use a loop instead: