voltage control

[w1]

Hi,

I am reading voltage on labview through arduino (using its analogue pins). I want to control(vary) that voltage just for the display sake using a dial/knob on labview and I am not sure how to implement that because LV does not allows to connect a knob or dial to voltage output ?

Please help!

Thanks

[Dennis_Knutson]

That does not make any sense. To control the external voltage, you need to physically adjust the actual voltage being read by the arduino's A/D. To replace the actual voltage read from the A/D with a front panel knob, is trivial, however. That just requires something as simple as a select function or case statement.

[w1]

thanks for reply.

So is it not possible to increase or decrease from the software end i.e using LV front panel just for display and keeping the actual voltage whatever it is ?

cheers.

[GerdW]

Hi w,

it's possible - as soon as you can give a good description of your task. ("Good": no contradictions, clear dependencies, clear program description)

[Dennis_Knutson]

You can either replace the actual voltage as I described or simply add the knob setting to the actual voltage. Either is trivial to implement.