Archive for 'LabVIEW' Category
Decode Serial Port File Transfer Protocols from Scratch with LabVIEW and Serial Monitor
Sometimes we need to write our own software to transfer files to serial port connected device, like DNC, which provides manuals and working software but no source code or the author of the software does not exist or does not support the software anymore. So, it’s a must to decode the serial transfer protocol to [...]
A Note about the Current VI’s Path Constant in LabVIEW
The current VI’s path constant in LabVIEW is often used to make the path of files which are in the same or relative folder of the VI application in our developments. If we use this constant in the development environment, everything is fine, and it works. But, if we build the VI into an executable, [...]
Three Principles to Follow when Design LabVIEW Applications
When using LabVIEW to develop huge and complex applications, we would encounter many problems not only the same as we use text based programming languages but also some problems which are unique for LabVIEW. LabVIEW is a graphic based programming language, it free us from the worry of syntax error and memory problems, but on [...]
Create a Tri-State LED Indicator in LabVIEW
Under some conditions, the traditional boolean LED indicator is not enough to indicate the test result. For example, before the test finish, the status of current UUT(Unit Under Test) is unknown, which value should be displayed, the green TRUE with the meaning of success or red FALSE with the meaning of fail? Both are unacceptable, [...]
Create a Custom Control in LabVIEW
Sometimes, the built-in controls or indicators are not enough for our applications. Then we must use custom controls and indicators to extend the built-in set of front panel objects of LabVIEW. We also can save the custom control or indicator you created in a directory or LLB and use the custom control or indicator to other applications. And we [...]