Blinking LEDS with numeric control

[Thuba25]

Hello,

I want to make a simple program that goes like this. I will have 2 numeric controls and 2 comparisons. 1st numeric will compare if the number if less than 50. Second comparison if it's greater that 50. If less than  50, the LED according to that number will blink up and stay on. If the second number is greater than 50 then the LED belonging to that number will blink and stay on. NOW...

If either OR both of these lights turn on, a THIRD light should BLINK off and on automatically. if both the first two lights stay off, then the third should stay off.

I tried to use shift registers and a delay to get the delaying but i'm stuck.

Any help would be great. Thank you !

Thuba25

[altenbach · Accepted solution]

FIrst you need to change your code to a real interactive state machine. Your code is inside-out.

Currently the controls are read once at the start of the program and then never again.

• Don't use inner loops. Use a single outer WHILE loop encompassing all code.
• Get rid of the stacked sequence, it is pointless and just obscures the code.
• The case structure belongs inside the loop and not vice versa.
• Read the controls with every iteration and decide according to their value.
• ...

See how far you get.... Good luck.

[crossrulz]

There is the property Blinking...

[Thuba25]

Thank you for your help! I was wondering, how do you get the property node you were talking about ?

[crossrulz]

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@Thuba25 wrote:

Thank you for your help! I was wondering, how do you get the property node you were talking about ?

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Right-click on your LED and select Create->Property Node->Blinkning.

[altenbach]

I would actually blink it programmatically instead of with a property node. You have better control over rate and blink color.

Here's a quick draft. Modify as needed.

[Thuba25]

I'm having trouble with this VI. Would you mind posting the one you created? Thank you

[altenbach]

Which one is "this vi"?

Tim's VI is a snippet. Just download the image and drag it to the block diagram. It will turn into runnable code automagically. 😄