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  1. I am using MoveBlock via Call Library Function to copy a few bytes. The duration of this call measured with two TickCount timestamps in a flat sequence around the call is about 40ms. Since MoveBlock should be similar to memcpy in C, I thought it would also perform similarly, however, if it's really this slow, I cannot use it in a meaninful way. Has anyone else measured its duration and can you confirm my findings?
  2. Hello, I'm trying to open an HTML file in google chrome via the VI System Exec.vi under NI Linux, for this I had to install the "xdg-utils" package. With the Linux terminal the command "xdg-open [file path] works fine. However, when I execute the code with LabVIEW the VI returns the following error (standard error indicator): /usr/bin/xdg-open: line 779: www-browser: command not found /usr/bin/xdg-open: line 779: links2: command not found /usr/bin/xdg-open: line 779: elinks: command not found /usr/bin/xdg-open: line 779: links: command not found /usr/bin/xdg-open: line 779: lynx: command not found /usr/bin/xdg-open: line 779: w3m: command not found xdg-open: no method available for opening '/home/lvuser/Desktop/Reports/20221128/FileHTML.html' After some research I understood that this was due to the fact that the default opening of the file is not goole chrome. So I executed the following commands in the terminal: - xdg-mime query default x-scheme-handle/http - xdg-mime query default x-scheme-handle/https - xdg-mime query default text/html But nothing does with LabVIEW it does not work but works with the Linux terminal. I join you the code (using LabVIEW 2020). Thanks for your feedback. code.vi
  3. Hi everyone. I started a new VI on LabVIEW 2021 to communicate, about tcp/ip, with a led display like a billboard as image below. I get a communication as TCP/IP through the manufacturer software, but i didn't know what is the package i need to send, the full package. This led display it's a simple command use, with there software (above) or bluetooth in cell phone, but, to communicate for TCP/IP, they install a conversor, the USR-TCP232-T2 module, as image below The image bellow, I show the simple program im LabVIEW to command this led display but the main question is: whats is the kind of package i need send to show the message or change the configuration of the display. In attached, we can see the datasheet that manufacturer send us about this led display and the package to send, but i did'nt undestand how to do 😕 It's my first time towork with TCP/IP on LabVIEW manual progração Serial TechnoLEDs padrão RS232-RS485-TCPIP v8.pdf Something like this:
  4. TDF team is proud to propose for free download the scikit-learn library adapted for LabVIEW in open source. LabVIEW developer can now use our library for free as simple and efficient tools for predictive data analysis, accessible to everybody, and reusable in various contexts. It features various classification, regression and clustering algorithms including support vector machines, random forests, gradient boosting, k-means and DBSCAN, and is designed to interoperate with the Python numerical and scientific libraries NumPy and SciPy from the famous scikit-learn Python library. Coming soon, our team is working on the « HAIBAL Project », deep learning library written in native LabVIEW, full compatible CUDA and NI FPGA. But why deprive ourselves of the power of ALL the FPGA boards ? No reason, that's why we are working on our own compilator to make HAIBAL full compatible with all Xilinx and Intel Altera FPGA boards. HAIBAL will propose more than 100 different layers, 22 initialisators, 15 activation type, 7 optimizors, 17 looses. As we like AI Facebook and Google products, we will of course make HAIBAL natively full compatible with PyTorch and Keras. Sources are available now on our GitHub for free : https://www.technologies-france.com/?page_id=487
  5. I am using the MUSIC algorithm and the Vector Antenna to determine the AoA of the incoming signals in LabView. My question is how can I implement the Steering Vector for the Vector Antenna in LabView? The mathematical equation of the Vector antenna is in the attachd, where 𝜙 is the azimuth angle and 𝜃 is the elevation angle.
  6. 有谁知道应该如何进行应用程序恢复?我希望应用程序在计算机突然关闭然后重新打开电源时恢复到断电之前的状态。
  7. View File 1-Wire.zip This tool-set gives access to all the 1-wire TMEX functionality. I was able to access 1-wire memory with this library. It has all the basic VI to allow communication with any 1-wire device on the market. It needs to be used in a project so the selection of the .dll 64 bit or 32 bit is done automatically. It works with the usb and the serial 1-wire adapter. Submitter Benoit Submitted 06/01/2018 Category Hardware LabVIEW Version
  8. Hi, I figured people here may be more interested in this project. I have some cool graph extensions I'm building in an open source project, which make some nice graphical overlays for XY graphs and waveform graphs in LabVIEW. I've got a github page where you can grab the code, support the project or just have a look at some of the same screenshots. Everything updates live in the graph, so you really need to see it, to get how it all works, so here you go: https://github.com/unipsycho/Graph-Extensions-LabVIEW Please star follow the project if you want to see this developed and I'd appreciate any feedback or ideas to extend it further. The markers are very much IN development right now, so no where near finished, but the tools can still be seen working. THANKS!
  9. Hello Everyone; How I plot the timestamp in the graph of the x-axis and numerical slider the timestamp given in 2d array. The array in 2d array of string... I will try this but it not plotting full timestamp can you help me to short of this problem. It will be a plot, but a few timestamps will plotting How I plot full timestamp and date... I have attached my problems like the jpg file and .vi file for your reference. Does anyone have solution comments below... 5_6285044541540009090.vi Thanks and Best regards...
  10. I find myself frequently looking for a good pattern for collecting a pool of array elements until they reach a certain size and then removing the oldest elements first. I have used very stupid methods like a bunch of feedback nodes being fed into an build array node. But today I thought up one that I really enjoyed and I thought that I'd share it. Its a simple pattern and no crossing wires . Perhaps someone has thought of something better, if so don't hesitate to share.
  11. I was trying a python http communication tutorial - https://aiohttp-demos.readthedocs.io/en/latest/tutorial.html#views - when I had to disable the NI Application Web Server to proceed. And then I thought, what the **** am I doing? Maybe I should take the free (well, prepaid) gift of a working web server. Here's my task. A central HQ computer will have a GUI that monitors five machine stations, each of which has its own computer. Every approx 10 ms (negotiable), each station gives a report consisting of two arrays, the larger being 2048 data points, the other much smaller. Whenever HQ feels like it, HQ can tell a station to start or stop (its computer stays on). A local IP connection is used, with a router at each end. There is also a Raspberry Pi with its own IP address at each station's router, that can send camera frames to HQ. The station-computers use Python and C++ to do their work, not counting whatever needs to be added to communicate with HQ. Your advice please? Should I use Labview? On both ends or just the HQ? And which if any of these helpful add-ons suggested by Hooovahh should I use?
  12. Hi! I have to convert a dynamically generated array into a JSON string and back. Unfortunately I found that the un-flatten method loses the variant data. See the screenshot of FP and BD and the comments inside. JSON_Text_test.vi Is this a bug in JSON Text or is my data-construction not supported as expected? In case of the letter I have modify huge parts of my code. So I hope that it is a bug 😉 The 2nd thing I recognized is that the name "Value" of the cluster is not used during flatten. Instead the name of the connected constant / control / line is used. I found the green VI ("Set Data Name__ogtk.vi") at OpenG Toolkit that allows me to programmatically set the variant data name. As you can imagine I would prefer not to need the OpenG VI. Thanks in advance for your kind help 🙂
  13. HAs anyone tried creating a sub vi programmatically by selecting the set of blocks through scripting?????
  14. I have installed Labview 2020 on Dedian Buster using the rpm to deb conversion method via alien. Due to Architecture mismatch i deleted the *i386.rpm files before conversion. My Problem is that after creating a project at "Build Specification"-> "rigth click" i am only able to select "Source Distribution". Application does not show up as an option. I will be grateful for any suggestions. Thank you in advance.
  15. I would like to build a model using image data and NI-cRIO-9063 and NI 9264 for voltage control. for image, I made a script in python using OpenCV libraries that detecting some points . For voltage control, I use cRIO-9063 with NI 9264 voltage controller. My question is, I am new in LabVIEW and I don't have any idea how can I make a loop for voltage control in python. Is there any library available in python that directly connect cRIO and NI 9264 devices? if not then how can I combine my image data(which is in python) with cRIO device? I need argent help.
  16. Hi there, I am working on a machine vision project with LabVIEW. The camera will locate some parts and send their coordinates via TCP/IP and I created a client also with LabVIEW to display these coordinates here is how the communication going. First, if the camera detects something then msg will be sent to the client to inform him. then if msg was received correctly client responds with another msg to request the coordinates. at last, the server sends the coordinates to the client. here I faced some problems 1- the msg sent are with variable length ("x=0,y=0,Rz=0"==> "x=225,y=255,Rz=5" ==> "x=225,y=255,Rz=90" length vary between 16 and 22 ) with the constant "byte to read " it will not display the full msg. 2-the client works fine but at a certain time, it shows errors like ("LabVIEW: (Hex 0x80) Open connection limit exceeded";;;;;; "LabVIEW: (Hex 0x42) The network connection was closed by the peer. If you are using the Open VI Reference function on a remote VI Server connection, verify that the machine is allowed access by selecting Tools>>Options>>VI Server on the server side"
  17. View File MCP2221A library There it is. The complete library for the MCP2221A. I2c adapter, I/O in a single IC. I love that one. Let me know if any bug is found. I try to make that library as much convenient as possible to use. Two version available 32 bit and 64 bit. little note: to open by serial number, the enumeration need to be activated on the device first. (open by index, enable the enumeration) It needs to be done only once in the life time of the device. PLEASE do not take ownership of this work since it is not yours. You have it for free, but the credit is still mine... I spent many hours of my life to make it works. Submitter Benoit Submitted 05/29/2018 Category *Uncertified* LabVIEW Version 2017 License Type BSD (Most common)
  18. I am just starting on trying to be able to use Python code from a LabVIEW application (mostly for some image analysis stuff). This is for a large project where some programmers are more comfortable developing in Python than LabVIEW. I have not done any Python before, and their seem to be a bewildering array of options; many IDE's, Libraries, and Python-LabVIEW connectors. So I was wondering if people who have been using Python with LabVIEW can give their experiences and describe what set of technologies they use.
  19. View File GRBL 1.1 Hi everyone, Since GRBL standard is open source, I decided to post my Library that I used in LabVIEW to interface a standard GRBL version 1.1 controller. Not all GRBL function has been integrated, but this is a very good start. Enjoy and let me know your comments. Benoit Submitter Benoit Submitted 07/26/2018 Category Hardware LabVIEW Version
  20. Hello everybody! Wondering how many people have tried the new vipm.io site. We have added a ton of features to make it easy to Discover LabVIEW Tools and there are some cool ones coming soon. Check it out and let me know what you think 😀 Javier
  21. VIPM.io now allows you to post LabVIEW Resources, Ideas, and Tools. For example, you could post a link to a video tutorial or blog article about a package. You can also post ideas, like feature requests or new tools. Best of all, package developers are notified when you post your ideas and resources, and you can comment and discuss posts with the community. Take a look at this video to learn more: https://www.vipm.io/posts/664960df-f111-4e13-989a-24be8207182d/
  22. I want to connect My ccd camera with labview. The details of my system is given bellow. I cannot connect it please help OS: WINDOWS 7, 64bit LabView Run-Time 2013(64-bit) NI-IMAQ 4.8 NI-IMAQdx 4.3 Camera: QICAM Monochrome Cooled (QIC-F-M-12-C) Model QICAM Resolution 1392 x 1040 Sensor 1/2" Sony ICX205 progressive-scan interline CCD Pixel Size 4.65 x 4.65µm Cooling Type Peltier thermoelectric cooling to 25˚C below ambient Digital Output 12 bit Video Output FireWire (IEEE 1394b) Max. Frame Rate 10 fps full resolution @ 12 bits Pixel Scan 20, 10, 5, 2.5MHz Mount Type C-mount optical format
  23. CLA_ATM_QMH_PRACTICE.zipHi Folks, I'm taking the CLA exam in a few weeks and would like some feedback on the solution I put together (attached). A few specific questions: Can I dump tags in the VI Documentation of the VI like I did in Error Handler - Console Error.vi and get credit since there are instructions for developers to complete this work? This would be my strategy if I run out of time. Does this seem like a passing solution? Why/why not? Where do you think I would lose the most points in this solution? Any other feedback on this exam or general strategy tips are greatly appreciated! Best Regards, Aaron
  24. It's nothing to fancy. I added a few things to the UI to support more features and in preparation of adding the VI renamining/relinking step that was done seperately in the OpenG DEAB tool before calling the OpenG package builder. But I never got around to really add the deab part into the package builder. It's kind of extra difficult as the DEAB compononent doesn't currently support newer features like lvclass and lvlib at all and of course no mallable VIs etc. I can post what I have somewhere, but don't get to excited.
  25. I am implementing a TCP connection between MyRio(client) and Python(server). The goal is to send data from the server to the client, perform some calculations, and send the result to the server. I need to keep changing the data being sent to the client. I noticed the first data works fine and the result returned to the server, but the client could not read subsequent data. I debugged and was able to detect that the error is coming from the first read function is the "Reading values subvi" but I don't know how to correct it. How do I go about it? I have attached the files below. Reading Unknown Bytes from TCP.vi Second_client.vi SimpleServer.py
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