LabVIEW - API Bindings¶

Warnings¶

LabVIEW might warn that the Tinkerforge.dll was loaded from a different folder. This warning can be ignored.

LabVIEW might also warn that it found a Tinkerforge.dll with a different version. If the found version is newer than the one LabVIEW was locking for, then you can ignore this warning. Otherwise you should update the LabVIEW bindings.

Errors¶

If LabVIEW reports error code 1386 "The specified .NET class is not available in LabVIEW." then make sure that all ".NET Constructor" nodes in the .vi file are configured correctly. Double click on a ".NET Constructor" node and select "Tinkerforge" as the "Assembly".

If the "Select .NET Assembly" dialog says "An error occurred trying to load the assembly", then check in Windows Explorer if the Tinkerforge.dll is marked as coming from another computer. If this is the case LabVIEW will refuse to load it.

Open the properties dialog of the Tinkerforge.dll in Windows Explorer. If there is an "Unblock" button at the bottom of the "General" page, then the file is blocked. Click the "Unblock" button and restart LabVIEW. The problem should be fixed now.

Stepper Brick¶

As an example let's run the configuration example for the Stepper Brick. For this we copy the Example Configuration.vi file from the examples/Brick/Stepper/ folder into a new folder:

example_project/
 -> Example Configuration.vi

If you did not copy the Tinkerforge.dll to the installation folder of your LabVIEW installation then the Tinkerforge.dll file has to be copied to the example_project/ folder as well before the example can be opened in LabVIEW:

example_project/
 -> Tinkerforge.dll
 -> Example Configuration.vi

In the example host and port specify at which network address the Stepper Brick can be found. If it is connected locally to USB then localhost and 4223 is correct. The uid value has to be changed to the UID of the connected Stepper Brick, which you can figure out using Brick Viewer.

Now you're ready to test this example.

Barometer Bricklet¶

Here's an another example showing a graph of air pressure values measured by a Barometer Bricklet.

And here the corresponding block diagram: