homemade DAQ device

[Blaze888]

So are you basically telling me that i should use the Emant Vi's and driver no matter that my Adaptor is different and it will still work? I don't know what functions connect to the EMANT pins i am not that into it 😞

[Dennis_Knutson]

This mythical adaptor of yours is no more relevant to the driver you use than the color of the dirty you are wearing.

Whether the adaptor will work or not is dependent on how it was designed. Since you are not that into it, you need to get into contact with whoever did design it and get the schematic.

[Dennis_Knutson]

Correction - color of your shirt

Stupid Swype.

[Blaze888]

That's what i needed to hear, thanks 🙂

[Dennis_Knutson]

Understand, though, that what functions you call and the parameters you pass WILL depend on the design of the adapter and what you are attempting to measure.

[johnsold]

Let me try to explain this in a manner which may help you understand what we are asking.

The hardware: Computer. USB cable. EMANT300 DAQ Module. {six analog inputs, one analog output - current, 8-bit digital I/O, one counter/PWM} Light Application Adaptor {unknown inputs and outputs}.

The software: Computer Operating System (probably some flavor of Windows). USB virtual COM port driver (part of OS or provided by EMANT). EMANT driver VIs (use VISA serial). LabVIEW VIs.

The first three items in the hardware list are things over which you have no control - they work the way they cam from the factories. The Light Application Adaptor is completely unknown - except that it has a connector which mates with the DB-25 on the EMANT300. Similarly the first two items on the software list must be used as they are. The EMANT driver VIs can be modified, if you wish, or they can be used as provided. The LabVIEW VIs to do something with the system are up to you to specify, design, and write.

When you write a LabVIEW program to "talk" to the EMANT300, you will be measuring input voltages, generating output current, reading or writing digital I/O, or using the counter. Those are the only connections between the EMANT and the Light Application Adaptor.  If you do not know how those EMANT signals affect the Light Application Adaptor, you cannot do anything!  Your image of the device is too fuzzy to make any intelligent guesses about its functions.  Who makes this device and what documentation is available?

Lynn

[Dennis_Knutson]

Is http://www.emant.com/252006.page what you are using? The documentation includes a schematic. If that's the adaptor, explain how you think it could be used. If it really is, instead of posting more and more questions here, post a notice on a bulletin board for an EE major and offer a pizza or twelve pack for a little personal consultation. Asking your teacher for basic help would also be a good idea.