Visa Bytes at Serial Port is a Property Node with a VISA class of Instr. The Number of Bytes at Serial Port property specifies the number of bytes currently available at the serial port used by this session. Returns the number of bytes in the input buffer of the specified serial port. The Instr block : VISA Bytes at Serial Port (Instrument I/O>VISA>VISA Advanced>Bus/Interface Specific>Serial>Bytes at Port).The modification required, for the book example, to continuously read from the Arduino: Modification for continuous serial Arduino read NOTE: The image above differs slightly, with an included delay, from the image at the top of the page, which is from Instrument Control in LabVIEW Tutorial. vi file may be found on the NI web site, on the example page, Serial Communication – Basic Serial Write and Read. However, the original Basic Serial Write and Read. This makes learning the graphical programming style somewhat more difficult. However, this example file no longer exists in LabVIEW 2013, and instead a more complex example Continuous Serial Write and Read is provided. vi file called Basic Serial Write and Read. However the final example, which graphs Arduino sensor data within LabVIEW, uses an example. From the book, O’Reilly’s Distributed Network Data by Bradford and Allan, see the XBee blog for more details, the final chapter deals with using an Arduino with LabView.

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