Output Constant Voltage using myDAQ

[Cobmetal]

Im a student and im using myDAQ for my final project , i buil an VI , and i want to add an constant ouput voltage of 3.3V , during the running of the VI .

looked for in the forum , can't find something with myDAQ .

here is my VI :

[Dennis_Knutson]

The myDAQ has two analog outputs add the specs and manual explain. You shouldn't need to search the forums to know that. You can use the DAQ Assistant to generate a signal.

P.S. Your user of the while loop does not make any sense. It runs only once, just like the rest of your code.

[James.M]

Edit: Dennis beat me to it.

[Cobmetal]

i know all the specs of this device , i dont know how to implement it , the while loop is OK , because i record lung sound only once 

[James.M]

Add another DAQ assistant that generates a signal instead of acquires.

[Dennis_Knutson]

You can delete the while loop then. It just confuses things. Please don't use the tin continuous button instead.

How come you can figure out to use the DAQ Assistant to acquire but you can't figure out to use the DAQ Assistant to generate? Did you even try?

[Cobmetal]

I dont know how to explain it , but the acquire was kind an easy to impelment , now i need output 3.3V DC , and i cant find it 

[Dennis_Knutson · Accepted solution]

Just put a new assistant on the block diagram and instead of acquiring, select generate at the very beginning. Pick your channel. Select 1 sample. Wire your constant to the assistant.

[Cobmetal]

ok , how can i stop the output voltage when vi is stopped

[Dennis_Knutson]

You would needed to write a new value with another assistant.