Sample rate and Arduino type

[El-Ray2]

Can i use "Arduino Due" with labview and what is the max sample rate in LIFA ???

[Kristoff2]

The Arduino Due is not currently supported in by LIFA but will eventually be added to LINX which is currently in open beta (see www.labviewhacker.com/linx).

The only reason the Due is not supported is because the LIFA firmware was written using Arduino .23 which did not support the Due and the Arduino API has changes slightly since .23 which causes the LIFA firmware to not compile in newer versions of the Arduino IDE.

If you're up for testing the Due in LINX I can add firmware for it.  Fair warning it will be completely untested since I don't have a Due. 

-Sam K

LabVIEW Hacker

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[El-Ray2]

Thank you for your efforts
and about reading analog inputs (sample rate) will it depend on Arduino speed or will be limited by LINX ??

[Kristoff2]

It will be limited by LINX.  Using USB / Serial I get about 300 samples / second with a chipkit after making a slight adjustment to the driver (lowering the latency timer).  The loop rate is not really affected by the number of channels you are sampling from as long as its all in one command.

For example say a single channel analog read gives 300Hz.  Reading from 6 channels with a single analog read block will also give about 300Hz, however reading from 6 channels with 6 analog read blocks, each doing one channel will result in 300/6 = 50 Hz.

I've been able to get~1.5KHz loop rates using the chipKIT ethernet shield.

Let us know if you have more questions.

-Sam K

LabVIEW Hacker

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[El-Ray2]

Thank you Mr. Sam for your help and i have no more question

[AbyJoseph]

From where will I be able to download the Arduino Due supported LINX; wouldn't mind even if its beta..

[Kristoff2]

You can find more information on LINX here:https://www.labviewhacker.com/doku.php?id=libraries:linx:linx

The Arduino Due is not currently supported but I plan on adding support for it when I get a chance.

-Sam K

LabVIEW Hacker

Join / Follow the LabVIEW Hacker Group on google+