Labview for arduino reading frequency

I'm trying to figure out a way to read a frequency from a device. The device tells how far away something is by a beeping signal. I tapped into this beeping signal and it is now connected to an arduino pin generating a high/low signal to Labview. I got this much to work but now I need the distance that the device is collecting. Basically I need to know if it's possible to generate a number on a numeric idicator from the information on how fast the frequency changes. I'm not really sure if this is enough information but I'm attaching my basic high/low code. I used a basic meter to display whether it is high or low.

Hi,
In the example I posted before, you don't want to use any of the DAQmx VIs. You would replace these with the arduino code but use the same frequency calculation.
What errors are you getting when using the pulses or frequency functions and which ones have you tried?
You could do a manual calculation of the RPM. Assuming you get one pulse per rotation, count the pulses of the optical sensor for 1 second. This will give you rotations/second. Then you can multiply this number by 60 to get rotations per minute. The problem with this is if 1 second passes when the motor is half way through a rotation, then there is no way to account for this in the calculation. If there is more than one pulse per rotation then you will need to factor this into the calculation.
Regards,
Greg H.
Applications Engineer
National Instruments

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Hello evryone,
I am trying to use a ''Sakura board", which is an Arduino compatible board, having similar programming as Arduino. This board is manufactured by Renesas; more specifications on it can be found on the following link: http://sakuraboard.net/gr-sakura_en.html
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I haven't had any experience with the Sakura board, so can only go on the information on the website.
I've used the Arduino LabVIEW interface previously, and it basically uses serial communications between the PC and the Arduino. This serial interface is provided by the on-board USB-serial converter (an ATMega8u2 running custom firmware).
From what I can tell about the Sakura, it appears as a storage device when plugging into a PC, and doesn't seem to have a USB to serial converter. If this is the case, then the LIFA toolkit won't work. That said, my understanding of the Sakura board may be incorrect (for example I'm unsure what operation modes the slide switch changes between). If you can confirm it has a USB-serial port then LIFA may work. I guess the key thing is that the serial port is required.
You may be able to use a software serial port (http://arduino.cc/en/Reference/SoftwareSerial) on the Sakura to communicate with a PC, though that would require a PC with a serial port, or an external USB-serial converter. This approach would also require you to modify the LIFA arduino code (located in vi.lib\LabVIEW Interface for Arduino\Firmware\LIFA_Base) to reference the software serial port. It's probably a long shot that this will work, as the software serial library has been written for AVR chips, making use of their specific internal timers.

LabVIEW Interface for Arduino Toolkitについて

はじめまして。
LabVIEW2013にNI LabVIEW Interface for Arduino Toolkit を導入したいと考えております。
NIホームページからNI無料アドオンに進み、Arduino用NI LabVIEWインタフェースツールキットの画面からダウンロードを試みたのですが、
Step　One：　VI Packege Manager　のインストール後、このソフトを立ち上げたところLabVIEW Tools Network及びVI Packege Network に接続できないと表示されます。
どなたか、この現象の改善方法について御教授頂けないでしょうか?
宜しくお願い致します

返信ありがとうございます。以下に実際に表示された画面を貼りますので宜しくお願いいたします。
まず、VI Packege Manager を起動すると、左の画面が表示されます。
エラーが発生しているようですが、ひとまずOKを押すと次の画像が表示されます。
この画面ではライブラリにパッケージが存在していないと表示されており、
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開いた結果、表示されたのが次の画像です。
この画面では、どうも問題がないような内容が表記されているように思えますが、
OKを押すと、また最初の画面に戻ってしまいます。
　LabVIEW　Tools Network　を起動したところ、左のような画面が表示され、
ネットワークに接続されていないことが分かります。
よって接続を試みるためにHelpからActivationを選択し、ひとまず30 day Trialに登録しようとしたところ、下の画面が表示されました。
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Analog Read Pin VI for Arduino interface (LIFA)

Hi all,
I'm new to Labivew and Arduino but hoping to incorporate both into my classroom. The Uno I have is functional; I've had some success with it already in the sketch editor. I'm hitting a wall with the interface, though.
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Solved!
Go to Solution.

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LabVIEW for ARM 2009 Read from text file bug

Hello,
If you use the read from text file vi for reading text files from a sdcard there is a bug when you select the option "read lines"
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Boolean bReadEntireLine = (linemode && (cnt == 0));
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greets,
Wouter
Wouter.
"LabVIEW for ARM guru and bug destroyer"

I have another solution, the EOF works with this one.
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with this solution the program does not try to allocate the whole file but for the max of 256.
in CCGByteStreamFileSupprt.c row 705
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Please help me with my electrical engineering homework : temperature control and watering system for greenhouse using labview and arduino

temperature control and watering system for greenhouse using labview and arduino
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When using DAQ assistant to read frequency

When using DAQ assistant to read frequency and Task timing is set to:
N Samples, Clock settings to read 26,
Frequency setup to rising edge,
1 counter with 10 kHz to 1 kHz range.
I get back a single number.
Can I assume this is an average reading of 25 samples with the first sample unused?
What is the base clock used?
Is the “26” 26 cycles of the frequency to be measured?

Hello,
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LabView for ARM - MCB2300 Audio

Hi, and thanks for reading!
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charlestrep91 wrote:
Hi everyone,
I just got my Labview for ARM cortex M3 evaluation kit and I can't download a simple program to the target. I'm using the Keil ULink 2 programmer and I get this error when compiling/downloading:
[4:23:16 PM] Status: Error
SWD Communication Failure
Error: Flash Download failed - Target DLL has been cancelled
Detail: [UVSC_PRJ_FLASH_DOWNLOAD, MSG: 0X100A, STATUS: Ex.] (1)
Status: FLASH download error.
I have read about this error and NI simply refers to Ulink2 user's guide which has this description for this error:
Serial Wire Debug communication is corrupted. The target SWD interface is not working properly. Mainly caused by the target: debug block not powered or clocked properly. Avoid Deep-Sleep modes while debugging. Lower the Max Clock frequency in the ULINK USB-JTAG/SWD Adapter section.
I have tried to "Lower the Max Clock frequency in the ULINK USB-JTAG/SWD Adapter section" but it didn't resolve the problem.
I have also tried to download the program using the usb port on the dev board but instead I get this error:
[4:51:22 PM] Status: ErrorUnexpected error occurred.
[Source: Target is in debug mode
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STATUS: 0xA] Code: 10]
What am I supposed to do with that?? I'm wondering if the dev board is defective. And this was supposed to be plug and play...
Any help is greatly appreciated!
I'll ask the obvious question, are you intending to use SWD or just download through the JTAG. Check your settings. I have not used the ARM with LV, but can you download anything using the Keil software? Give that a try. That may tell us where the problem lies. Try to duplicate your settings in LV from the Keil sw.
Reese, (former CLAD, future CLD)
Some people call me the Space Cowboy!
Some call me the gangster of love.
Some people call me MoReese!
...I'm right here baby, right here, right here, right here at home

Microphone calibratrion for dB reading from pc sound card?

We are trying to acquire a sound signal from a regular laptop sound card into labview, and obtain a sound intensity reading and a frequency reading. Through FFT we are able to acquire the strongest signal, but the dB readings are all over the map. Using a sound generator we were able to conclude the frequency readings were indeed correct, but the sound intensity was way off, and non-repeatable. So what I'm looking to know is if it is possible to calibrate the mic within labview or to read in a sound level measurement in dB with a regular PC mic and sound card. Even if it was a gain measurement, how do set the baseline for 0 dB? Please help!
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Basically you have to do the calibration repeatedly at the same frequency and also at various frequencies too, in order to see if the microhone is actually useful at all (repeatability of calibration value at the same frequency), as well as reasonaby constant over the frequency range for both the mic and the sound card.
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Rolf Kalbermatter
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a division of Test & Measurement Solutions

Labview interface arduino

Hi, I am using Arduino with LabVIEW to automate an extruder machine for my masters project. Can you please tell me how to obtain wire diagram for the Arduino circuit after completing the graphical circuit in LabVIEW? Can I get some more examples on LabVIEW interface Arduino related to motion control and automation?
Thanks & regards,
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Hello Askhu,
LabVIEW plus Arduino sounds like a fun combination!
SparkFun even sells a kit for it, which is handy because they also provide a good starting point for a support community:
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And we sell an interface toolkit that may be helpful:
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I am trying to integrate simulink model (.mdl) file with SIT of Labview for RCP and HIL purpose. I am using Labview 8.6, Simulink 6.6 with RTW 6.6 and RTW embedded coder 4.6 ,Visual C Express 2008 and Visual C++ Express 2008.

I am trying to integrate simulink model (.mdl) file with SIT of Labview for RCP and HIL purpose. I am using Labview 8.6, Simulink 6.6 with RTW 6.6 and RTW embedded coder 4.6 ,Visual C Express 2008 and Visual C++ Express 2008. I have selected system target file as nidll.tlc,make command as make_rtw and template nidll_vs.tmf. When I try to generate .dll file I get the following error.
Attachments:
SITProblem.JPG ‏101 KB

Hi,
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Himadri

How do you add a third party sensor to LabVIEW for Lego Mindstorms?

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Hi Ethan,
As you can see from my Word document, I am a little light on the proper terminology. That's because LVLM comes with inadequate documentation.
I have already followed your recommended protocol for installing a 3rd party sensor (in fact, its the protocol recommended by Mindsensors) with the application set in the Remote Mode (.lvrbt), and it does create a sub-palette with all the Mindsensors functions on it. But when I drag the Mindsensors icon to the Block Diagram and select "Distance Sensor," the Distance Sensor (an IR sensor) doesn't work (even though the Mindsensor's Distance Sensor does work with NXT-G, RobotC and LVLM under other circumstances (see below)).
If I repeat the above process with the application set in the Direct Mode (.vi), I also get the sub-palette with all the Mindsensors functions on it. When I drag the Mindsensors icon to the Block Diagram and select "Distance Sensor," the Distance Sensor does work.
What I need for my mapping application is for the Distance Sensor to work in the Remote Mode. I called NI tech support and the first engineer told me to simple drag the Mindsensors Functions (.vi) onto the Block Diagram. I did this, but when I selected the Distance Sensor, the icon appeared, but the sensor did not work. Since I have no idea what's under the hood of the vi or a function, I assumed that simply dragging the vi/function onto the desktop didn't install the vi/function properly. I went back to the Applications Engineer, and he confessed that he did not understand the LVLM product.
My frustration is being punted to new people, none of whom so far (other than you, of course) understand LVLM.

Labview for arduino reading frequency

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