LabVIEW arduino uno bad data transfer

Similar Questions

• Arduino Uno + Labview 8.5

  Hello

  I am trying to send commands to the Arduino Uno using Labview 8.5. Tried setting basic series writing and Read.vi the baud rate 9600 and rest of the default parameter, selected the correct COM port and wrote the command

  i5000\r\n

  This command is to rotate a plate of rotation using a motor, 5 degrees. There is no response.

  I can run this command by using NOR-MAX and the Arduino terminal and the motor move.

  Could someone please tell me what am I doing wrong? I had done my own vi using VISA initially, but it didn't work so I tried the example of OR. Is the example for a reason any not applicable to my case?

  There is no error but the motor does not move.

  Thank you very much..

  
  

• Problem with Labview communication with Arduino Uno

  Hello

  I tried to run a simple program in labview through my Arduino Uno R3 all morning and keep running into the same problem: no response from my Board of Directors. I'll catch you up on what I've done so far:

  -flashed LIFA Base to my Arduino
  -Downloaded the driver update of VISA

  written-a the block diagram (I hope) for a led on off function

  When I run the program in labview, the RX flashing intermittent, continue for 30 seconds before stopping. The led on pin 13 is not turned off as it should, and I have no control over the power function light. I also tried a program of control of servo with no response and the same flash of RX. Never the TX flashes.

  I am quite stuck, so any help is greatly appreciated. Also I'm not a comp sci guy, I'm just an engineer in mechanics with a half of C++ so keep pg when it comes to the language of the computer.

  I've attached a picture of my diagram of LED, see if you can spot a problem.

  Thanks in advance!

  SOLVED: Reset the Arduino card after that labview had sent his orders (while the RX light was still flashing). Works like a charm.

• VISA reading significantly slows down to 20 Hz (Labview, Arduino + Xbee project)

  Hello

  I am quite new to Labview and Arduino, so I apologize if I use the incorrect terms. I'm having some trouble with the next project, I hope that you guys can give me some advice!
  I have 16 sensors connected to the 16 analog pins on an Arduino mega Board. This Council has a shield mounted upon him, with a Xbee module wireless. I have another Xbee module that communicates with him and it is mounted on a USB dongle that plugs into a PC with Labview 2015.

  The A/D analog Arduino pin output is read and sent every 50ms to the Xbee module connected to the PC. So every 50ms (that is, a frequency of 20 Hz), a new line of analog readings by commas is sent, using AnalogRead and Serialprint in the Arduino. These data are fed to a Labview code with architecture of producer-consumer. Copy the following code configures a serial port of VISA, reads the data, it converts a voltage value and writes the data to a text file (see block_diagram.jpg).

  The problem is that at a frequency of 20 Hz (with the configuration of the attached jpg) when you reach 400 treatment iterations the code slows down considerably and values are not parsed correctly. It behaves as if the queue is full (but the queue of elements indicators show 0) or memory or the buffers were full. It seems quite surprising to me given that the sampling rate is so slow. I tried a few configurations setting the buffer size, empty the buffer by using the queue time, but nothing seemed to work. Is it because the processor loop takes too much time to iterate? I tried to disable data analysis, conversion of voltage and the generation of text file, just keep reading and still have the same behavior.

  This may be the cause? Suggestions to change the block diagram are welcome! Is there a better way to do this than with VISA or queues...?

  I use Labview 2015 on Windows 7.

  Thank you!!

  sminanog wrote:

  It behaves as if the queue is full (but the queue of elements indicators show 0) or memory or the buffers were full.

  You think along the good things. But the big problem I see here is that you have a table growing up to stop the program.  You must move the file writing to be inside the loop of your consumption.  This will eliminate the need to constantly develop your table in the shift register, with tons of memory and causing copies of memory (which is very expensive).

  The other concern I have is the speed at which data is available.  If you have a baud rate 9600, then in the 50ms debit you can pass 48 bytes.  This leaves 3 bytes per sample, including the comma.  If you have a debit 115 200 baud baudrate, it turns into 576 bytes, you can send the 50ms.  So the lesson here is to make sure that you use a transmission speed which is fast enough to handle the data that you want to send.

• making data transfer between two computers

  Hello

  I developed a labview for data acquisition goal program.  I need to run a part of my program in a computer and some said in another separate computer. for data transfer between these two computers, I decided to use the Protocol of data taking. a computer, collect data and send data to the second computer and second computer will control the setting of data acquisition in the first computer. now I have developed the program but it does not work. I wonder if that is enough to link these two PC by a network cable or something needs to be done. of course, I have some problems with the source definition in the Protocol of data taking. need two labview program in two separate computers.

  Best regards.

  the problem is resolved.

  transfer of data from socket, simply connect two computers with a LAN cable, as I did. The problem is the URL parameter. I got the error as follows:

  ==> in main and remote program, the URL must be the same and the computer name that data socket server is running must be incloded in the two URLS. (my mistake was that I had used two different URLS in the main program and remote). either way, I realized that this isn't neceessary to Server execution data socket in the two computer.but that that send data.

  concerning

• Timed signal generation TTL with the NI USB-6501 to be read by Arduino Uno

  First of all, I want to apologize - I am very, very new to LabVIEW and brand new to the development of the software of control equipment in general. I tried to find an answer to this question already, but I'm not entirely sure what I'm looking for.

  I have currently a work program LabVIEW which operates a gun card NI USB-6501. Due to the nature of having a machine that springs from a powerful beam of electrons, we want to assure you that if the computer controlling stalls or fails for any reason, we have built-in security that can stop the gun. Our current idea is to connect an Arduino Uno on a PIN on the USB-6501 and LabVIEW to generate a timed signal, which may read the Arduino. If the signal fails (indicating that the control computer has queued or off), the Arduino triggers a power relay that is independent of the control computer and turns off the gun.

  I understand that the USB-6501 operates on TTL signals, so the signal that I should be something in the sense of "output TTL high, wait 1 second, output low expectations, a second, repeat TTL ', but I have no idea how to go about programming in LabVIEW. My first thought was that it is a square wave by using the function "simulate the signal" output, or to have trigger an iterative Boolean signal, by using the function 'DAQmx write', but I don't really understand how do to implement or another idea, or if an idea would even work.

  Any advice would be greatly appreciated.

  Hi Elizabeth,.

  THINK THE STREAM!

  When do you DATAFLOW think everything falls in places!

  Several problems:

  -You have to put that MAKE impulse VI in his own loop parallel to your main VI!

  -When you place this generation of impulses in the effects loop ("TTL arduino low-high") you should put the CreateTask and StopTask outside the loop: no need to create/stop the task in each iteration.

  -Why are there points of constraint to waiting functions?

  -Why is there bent wires? You know Ctrl-U?

  -LabVIEW comes with an extensive library of example screws: you looked at all these examples DAQmx?

  -Suggestion: Learn more about the "structures of producer-consumer"!

• Arduino uno error 5002

  Hey,.

  I'm using labview 2011, lifa 2.2.079, arduino uno rev3 connected via usb to the pc

  If I open Device Manager I find under ports: arduino uno (com3)

  also if I open or max, devices and interfaces in series and parallel I find com3 when I click it I find in the device status area: this device does not work correctly

  I also checked my Arduino board using the arduino software, I tried to download the example of Flash and it works if this isn't a hardware problem

  but when I am trying to build all vi (I tried one which turn on and off the led to pin 13) or by using any instance in the for example the analog player lifa vi I get error 5002 and nothing works...

  I checked baud rate and I tried to increase the timeouts and I created a constant for VISA resource choose com3 in the init.vi (all these are solutions found in other discussions here in the forum) and nothing worked I still get the error

  can someone help me in this?

  Thank you very much

  Download the 1.0.5.then from the arduino between software software, click on file > open... > c hard drivefor example) > program files > instruments > labview > vi.lib > labview national interface for arduino > firmware > lifa_base > lifa_base. then download the file on your chip, close the software, enter labview and run your vi It should work. If you do not understand, you can follow the steps mentioned in a youtube video... Enter youtube.com > labview arduino... Watch the first video that appears.

• labVIEW Arduino interface

  Hey,.

  I've interfaced arduino and labVIEW 2012. I run the LIFA_Base file in the window of the arduino and then close it and run my program in labVIEW. whenever I have stop the labVIEW program and the next time I run the program in labVIEW, that it's not until I reupload the LIFA firmware. So, what is the solution such that I did not download the LIFA firmware every time.

  Good quick response.

  Rich.

  Rich,

  I think your code is good enough to read the data in series.

  Please check the attached sketch (which is the same as what you have downloaded to the arduino) also I join the LabVIEW VI to read data series.

  Please make sure that the COM port that you use for arduino should be the same for LabVIEW.

  Also close to the arduino.exe (the software through which you have downloaded the sketch.

  Then, run the supplied LabVIEW VI.

  Better use of the arduino with LabVIEW, you can find step by step here information

• Data transfer?

  Is to connect your iPad to a computer to transfer data to your iPad another way of data transfer such as an OTG device as a micro SD card?

  Thank you

  Depending on the data type and the application that you use to access this data, you may be able to save to DropBox or dedicated application servers back up (if it is a characteristic of soft offers).

  SanDisk made a series of key USB Wifi active. However, due to the nature in iOS sandbox, there are many limits on what you can switch to the player. Everything happens through the application owner.

• Assistant (DTA) data transfer transferred some of my Contacts, none of my calendar or Memo files

  When I ran the DTA at 5:30 PM PST yesterday, he said he had picked up ~ 4100 chronogram (Palm Desktop 6.2), with the exception of 20 files of calendar, which was very good.
  
  On my old Palm device, he said I had ~ 1300 address book records, ~ 2000 Date record book and ~ 850 record Memo. So when the DTA said he had picked up ~ 4100 records, which seemed all right.
  
  When you are prompted on my pre, I chose to sync my data with Google.
  
  Immediately after this one-time transfer process, I checked my pre, and there is no record of my old Palm Desktop Contacts, calendar, or PRE memos. I thought that I should wait to see what happens.
  
  About 7:30 PM PST yesterday, slightly more than half of my Contacts has appeared in Google Contacts section 'My Contacts' (725 total) and on my pre. The same recordings were in Google Contacts and on my Palm Pre. Furthermore, none of my calendar or Memo files had been transferred more to my pre or Google (for the calendar).
  
  I thought that maybe the data transfer was still running, so I waited all night.
  
  Since this morning 9:45 AM PST, nothing has changed.
  
  My Pre and Google seem to have incomplete data:
  -slightly more than half of records from address book Palm Desktop 6.2 made to my pre / Google
  -any of the records in Palm Desktop 6.2 Agenda made my pre / Google
  -any of the records in Palm Desktop 6.2 memos made my pre / Google
  
  SUMMARY: I'm extremely frustrated. The only thing that I have always enjoyed with Palm devices has been the opportunity to upgrade to the new Palm devices and carry my existing data. The one-time transfer of DTA to pre process is very buggy. Somewhere after the DTA extracts data from my Palm Desktop (~ 4100 records), most of these documents have been lost. It is a horrible customer experience.

  I did some online research, and the author of the following article also fell on a similar problem:

  http://blog.Treonauts.com/2009/06/Palm-pre-sync-solutions.html

  I have tested and verified that when I create a new record on my pre calendar, he gets sync would correctly in Google Calendar and vice versa (new record created in Google Calendar sync does get would be my pre). It is very good for new data. But what of my thousands of existing data records? All these anniversaries, critical telephone numbers, addresses, etc.?

  Before this experience Pre DTA, I've that Palm had their pretty solid synchronization architecture, while the Apple iPhone synchronization architecture (via iTunes) was poor. But at least iPhone na not lose all records along the way.

  So I figured out how to get all my Contacts to load into my pre.

  Initially, I tried to transfer my data using DTA to Google instead of Palm profile. Several times I tried to run the DTA to transfer my contacts from Palm Desktop 6.2 to Google contacts. Whenever I tried to do, at some point, sync Google contacts folders would stop permanently, until all records have been transferred to the course. You can find out how many records have been sync'd to a given pre Contacts by clicking on Preferences & accounts by clicking on the account. You will see the number of contacts.

  So I decided to try to use the Palm profile as the storage for my Contacts and calendar, and all my Contact records (total 1372) was migrated successfully on the Meadow

  The pre now displays contact records in my pre Contacts as I expect: I see the files I transferred over my Palm Desktop. And because I added a Gmail contacts, Gmail addresses friends get "linked" to the corresponding Contacts automatically.

  Summary: my recommendation is that, for the DTA transfer process, you choose to store (backup) your Contacts (and calendar) on the Palm profile. Of course, the downside of this approach is data that has been created on your Pre will not be displayed in Google Contacts and Google Calendar. Of course, you can choose to add your Google accounts on your Pre to your Contacts and calendar, which is what I did. This makes the Chronogram of your Gmail contacts and introduce you to Google Calendar on your Pre. For example, I added the calendar we vacation on Google Calendar. And now these holiday appear on my Pre calendar.

  Message edited by edweirdo 08/06/2009 11:47

• Slow data transfer between computer and HP Laser Jet 1320n

  I recently bought a laptop with windows 8.1 and successfully connected to 1320n times via LAN and wireless networks. Problem is when I try to print .pdf files, data transfer from my computer to the printer seems very slow and that's why it takes several minutes to print 10 pages. On the print window of my system, it tells me the data to transfer a file from pdf page 14 are about 75 MB.

  My questions are:

  1-is-normal this size of data?

  2. What can I do to increase the transfer speed?

  Thank you in advance.

  H.A.

  Thank you very much for the reply.

  I hae has solved the problem by installing the drivers that are on the product page (I was using the Windows drivers when I had the problem). Everything works as it should now.

• Sudden slow data transfer

  Hello

  I am happily using my 3 GB Time Capsule for the last 18 months with no problems. I use it almost exclusively as data storage for my Plex server. I use it wirelessly to my Macbook Pro 2014, in the same room.

  Yesterday, without change to explain it, it has become very slow to transfer files to it.

  

  I am at a loss, as most of the solutions I looked for people who have had problems of speed from the beginning, mine was a sudden appearance.

  Speeds do not seem to affect my streaming quality that I can still watch a 1080 p 5 gb + video file without stuttering or offset. The problem is isolated to the data transfer it seems.

  Any suggestions where to start?

  I use it almost exclusively as data storage for my Plex server. I use it wirelessly to my Macbook Pro 2014, in the same room.

  The plex server is connected by ethernet?

  Speeds do not seem to affect my streaming quality that I can still watch a 1080 p 5 gb + video file without stuttering or offset.

  It would be difficult to know if streaming is more... and more through your Macbook wireless...

  So I just need to know what is connected by ethernet and what is connected by wireless.

  Wireless is seriously affected by a number of things. So I guess that the first test is to connect the laptop to the TC by ethernet and make sure that it works very well. If your ethernet Mac buy a crush on ethernet card... a necessity, in my humble OPINION... as trying to fix wireless more wireless resembles sawing off the branch that which you are sitting.

  If you can determine the network of the question... Then we can do the simple things...

  Run the diagnostics wireless...

  Just restart the entire network, which I am assuming that you tried but did not mention.

  Simultaneous copy of a file on the hard drive while also streaming can also be stressing the TC... If the tests should be carried out without any other use of disk passes.

• How to calculate the rate of data transfer if I know that the total number of samples/s?

  I'm looking to set a PXI system for measurement of County at high speed, routes, while that controlled remotely via MXI - 4.  How can I be sure that the controller is capable of rapid data transfer quite seen the number of channels and frequencies of sampling provided?

  I think I figured this out, but maybe someone can save me.  For the task at hand, I will have a PXI-4496 and four PXI - 6143 s all 32768 samples/s sampling.  4496 is 24-bit, and 6143 is 16-bit.  Thus,.

  bits of samples/s/channel x 24 16 channels x 32768/8 = 1 048 576 bytes / s

  +

  32 x 32768 samples/s/channel x 16 bits/8 channels = 2,097152 bytes/sec

  =

  3 145 728 bytes/s, or exactly 3 MB/s.

• Data transfer NI653x

  Hello

  We used the NI6534 card to transfer data from our system in a PC. He works on traditional pilot and DAQmx. We use handshanking calendar for data transfer. Recently, we want to increase the speed of data transfer and need to change the "timing" of the handshake to sample clock calendar (model IO in traditional version). We got it working using the traditional driver, but not by DAQmx. I always get an error code when you try to start the data acquisition. Code error-89129 - Terminal is not valid for the device. Here is C code to configure and start the map:

  DAQmxCreateTask("",&m_taskHandle);
  DAQmxCreateDIChan (m_taskHandle, "Dev3/port0_32", "", DAQmx_Val_ChanForAllLines);
  m_numofSampletoRead = 2000000;

  continue to generate samples up to the stop.
  bRet = DAQmxErrChk (DAQmxCfgSampClkTiming(m_taskHandle,"Dev3/PFI2",20000,DAQmx_Val_Falling,DAQmx_Val_ContSamps,m_numofSampletoRead));
  specify the size of the buffer
  bRet & = DAQmxErrChk (DAQmxCfgInputBuffer (m_taskHandle, BUFFER_SIZE));

  Once he went to configuration and once called the DAQmxStopTask (m_taskHandle) function, he returned this error code I mentioned above.

  With respect to the traditional version, I just added a call to the function below and it worked fine.

  If (!) () status = DIG_Block_PG_Config (m_deviceNumber,
  m_group,
  1, / * enable the generation of model using REQ edge lock * /.
  1, / * REQ - REQ external source * /.
  -3, / * time - base 50ns, it is an internal clock * /.
  1, / * interval REQ * /.
  ((((i16) 0))) / * turn on or off the switch * /.

  Can you help me how to make it work with DAQmx? Thank you.

  Thank you, James. The example of aid. The function I called:

  DAQmxErrChk (DAQmxCfgSampClkTiming (taskHandle, "/ Dev3/PFI2", 10000.0, DAQmx_Val_Rising, DAQmx_Val_ContSamps, 1000));

  I missed the first slash highlighted in RED.  I've was allowed past this function call but got stuck at the next function call, DAQmxErrChk (DAQmxStartTask (taskHandle)), that me cheated.

  Thanks again for your help.

• If possible in DAQ 6009 bidirectional parallel data transfer?

  want to APR DAQ6009 interface via bus 8-bit parallel, but I need to be bidirectional thus stuck at this point since m nt if possible data transfer bidirectional or not

  The 6009 has two-way DIO.

  However, I don't think I would be wasting my time trying to implement a protocol of communication using EID on the 6009 - this is all software timed instead of timed material, which means that your rate will be very slow)< 10="" hz)="" and="" very="" nondeterministic,="" making="" communication="" protocols="" very="" difficult="" if="" not="">