How to make a single boolean on/off continuously on time bases?

[Matin88]

Hello all,

I am new user to Labview, and I just wonder how can I control a LED which swich on-off automaticaly for a while, with time of "on=2 sec", and "off=1sec"

I tried  different things but I am not able to control the time which the LED is on and off.

I will apreciate if you could please help me.

Thank you.

[altenbach]

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@Matin88 wrote:

I am new user to Labview, and I just wonder how can I control a LED which swich on-off automaticaly for a while, with time of "on=2 sec", and "off=1sec"

I tried  different things but I am not able to control the time which the LED is on and off.

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Then start a new thread instead of appending to a discussion that is over 4 years old. Show us what you tried and we will explain what's wrong and how to do it better.

• How long is "a while"?
• What should happen before and after "A while"?
• "I tried different things" is very vague. Can you be more specific?
• What else does the program do?

In the simplest case you could have a while loop with a wait. Toggle the LED and wait time depending if the iteration terminal is even or odd. Code would probably fit on a postage stamp. 😮

Seems to be related to your other discussion. Why not keep it all in one place?

[RavensFan]

Duplicate Post.

[Matin88]

Dear Altenbach,

Sorry for my mistakes.

[Matin88]

Dear Altenbach,

I used the vi that you provided in first page of this discussion (alternating LED) and it is working well with LEDs but I have problem to connect this on-off switching to DAQ Assistant. I wired form boolean and I used boolean to integer and then to DAQ, but not working.

one more thing is that, for the DAQ and the task of switching on-off should I use analog or digital output?

Thanks,