Arduino signal to Labview

Hello! I'm trying to transmit signal of current sensor acs712 reading from Arduino Yun to LabView, but I'm unable to establish the communication through USB port.. I've followed directly from this tutorial: https://www.youtube.com/watch?v=OWCsaR-oOr8 but I don't get any signals or reading..
Do I need some arduino codes before I can establish the connection ?
Really appreciate if you guys can help/guide me step by step! Thank you!

There are a couple of prefab libraries for communication between Arduinos and LabView, LIFA and LINX. LIFA is deprecated at this point, so you should use LINX. In both cases, the library consists of a sketch which runs on the Arduino and some LabView code. The Arduino side of things is a loop that listens for commands/queries from LabView and returns responses.
You do have to interface that current sensor with the Arduino. Since its output is just an analog voltage, that's pretty straightforward; just run the output into one of the analog inputs of the Arduino and use the Analog Voltage Read VI in LINX.

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Interesting project!
I looks like a few people have tackled decoding the data (both WWV and WWVB) using reciever modules that create a digital signal stream and Arduinos to decode the data.
How about GPS based time? Here is reciever/decoder module that provides a decoded serial data stream:
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-AK2DM
~~~~~~~~~~~~~~~~~~~~~~~~~~
"It’s the questions that drive us.”
~~~~~~~~~~~~~~~~~~~~~~~~~~

Arduino due and Labview wirelss serial communication using Xbee

Hello.
I am controlling a mobile robot using the Arduino due and labview
PWM value caculated on the labview is sent to Arduino due and then Due controls the robot.
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-experiment image-
https://www.youtube.com/watch?v=oZdMCdHlDhM
- Arduino source-
#include <string.h>
int PWM1 = 5;
int DIR1 = 4; //direc
int PWM2 = 6;
int DIR2 = 7; //dir
float readNumber = 0;
float In1, In2, pwm, newtime, A;
float newposition1 = 0;
float newposition2 = 0;
unsigned int Aold1 = 0;
unsigned int Bnew1 = 0;
unsigned int Aold2 = 0;
unsigned int Bnew2 = 0;
volatile long encoder1Pos = 0;
volatile long encoder2Pos = 0;
int encoder1PinA = 8;//Encoder A pin
int encoder1PinB = 9;//Encoder B pin
int encoder2PinA = 11;//Encoder A pin
int encoder2PinB = 12;//Encoder B pin
int Direction1, Direction2;
float pwm1_limit=255;
float pwm2_limit=255;
float count_old = 0;
float power1_old, power1_old2, power1_old3, power1_old4, power1_old5;
void setup() {
// put your setup code here, to run once:
pinMode(DIR1, OUTPUT);
pinMode(DIR2, OUTPUT);
Serial.begin(115200);
Serial.flush();
Serial2.begin(115200);
Serial2.flush();
pinMode(encoder1PinA, INPUT);
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float x = first.toFloat();//위에서 분리된 문자를 float형으로 바꿔줌
float y = second.toFloat();
newposition1 = -encoder1Pos; //Encoder signal
newposition2 = encoder2Pos; //Encoder signal
count_old = 0;
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float power2 = y;
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Direction1 = HIGH;
if(power2 >= 0){
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else {
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power1 = abs(power1);
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digitalWrite(DIR1, Direction1); //HIGH = back, LOW = forward
digitalWrite(DIR2, Direction2); //HIGH = back, LOW = forward
analogWrite(PWM1, power1);//PWM Speed Control
analogWrite(PWM2, power2);//PWM Speed Control
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String Q = "!";
String strValue2 = String(newposition2);
String stringThree = strValue + Q + strValue2;//문자 합치기
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else {//when Serial communication stop
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newposition1 = 0; //Encoder initialization
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//Encoder Read//////////////////////////////////////////////////////////
void d1EncoderA()
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void d1EncoderB()
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Aold2=digitalRead(encoder2PinA);
void d2EncoderB()
Bnew2=digitalRead(encoder2PinB);
Bnew2^Aold2 ? encoder2Pos++:encoder2Pos--;
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piZviZ wrote:
Only data rate working is 9600 between labview and launchpad(arm cortex m4).Where all data rates work between Arduino serial port monitor and launchpad(arm cortex m4).
Since the only thing that changed is the Launchpad, then that must be the issue. Are you sure this device can handle more than just the 9600 baud rate? Are you sure you are even setting the baud rate on this device?

Using excel to generate signal in labview

Hi there
I am having a trouble in generating a signal in labview using excel and then plotting it as waveform.
In excel file, I have 2199 rows and 9 columns with time in second and I want to plot time against other columns except column 1. In rows, I have text in first one.
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Thanks
Solved!
Go to Solution.
Attachments:
Data File Modified.xlsx ‏554 KB

smercurio_fc wrote:
You haven't shown us any code, so we don't know which columns you're using. However, you should be aware that Excel and LabVIEW use different epochs: https://decibel.ni.com/content/docs/DOC-8733.
Thanks smercurio the link appears to be broken so anyone who tries just remove the "." at the end.
The best solution is the one you find it by yourself

I am trying to log data from 4 voltage input signal using labview, but when i use DAQ assistant i am able to log data from one signal at a time only.

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Naveen
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I use this occasionally so I don't have to worry with LabVIEW while in Multisim.
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><><><><><><
Tommy R.
><><><><><><
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ECGsignal_1sec_1kHz.zip ‏39 KB

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-SS

Interesting project!
I looks like a few people have tackled decoding the data (both WWV and WWVB) using reciever modules that create a digital signal stream and Arduinos to decode the data.
How about GPS based time? Here is reciever/decoder module that provides a decoded serial data stream:
http://www.parallax.com/Portals/0/Downloads/docs/prod/acc/GPSManualV1.1.pdf
-AK2DM
~~~~~~~~~~~~~~~~~~~~~~~~~~
"It’s the questions that drive us.”
~~~~~~~~~~~~~~~~~~~~~~~~~~

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Hi,
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Attachments:
meanrun.vi ‏21 KB

How to reset a counter on external signal in LabView?

Hallo there!
I am using LabView v 8.5 and the NI USB-6211 to acquire signals, among them are the following:
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1,2,3,4,5,6,7,8,9,10,(reset),1,2,3,4,5,6,7,8,9,10,(reset),1,2...
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1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9
In toggle mode (default):
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In pulse mode:
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John Passiak

Arduino interface with labview: not able to upload lvifa base file

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AFMotor.cpp: In function 'void initPWM1(uint8_t)':
AFMotor.cpp:87: error: 'TCCR2A' was not declared in this scope
AFMotor.cpp:87: error: 'COM2A1' was not declared in this scope
AFMotor.cpp:88: error: 'TCCR2B' was not declared in this scope
AFMotor.cpp:89: error: 'OCR2A' was not declared in this scope
AFMotor.cpp: In function 'void setPWM1(uint8_t)':
AFMotor.cpp:108: error: 'OCR2A' was not declared in this scope
AFMotor.cpp: In function 'void initPWM2(uint8_t)':
AFMotor.cpp:124: error: 'TCCR2A' was not declared in this scope
AFMotor.cpp:124: error: 'COM2B1' was not declared in this scope
AFMotor.cpp:125: error: 'TCCR2B' was not declared in this scope
AFMotor.cpp:126: error: 'OCR2B' was not declared in this scope
AFMotor.cpp: In function 'void setPWM2(uint8_t)':
AFMotor.cpp:146: error: 'OCR2B' was not declared in this scope
AFMotor.cpp: In function 'void initPWM3(uint8_t)':
AFMotor.cpp:162: error: 'TCCR0A' was not declared in this scope
AFMotor.cpp:162: error: 'COM0A1' was not declared in this scope
AFMotor.cpp:162: error: 'WGM00' was not declared in this scope
AFMotor.cpp:162: error: 'WGM01' was not declared in this scope
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AFMotor.cpp: In function 'void setPWM3(uint8_t)':
AFMotor.cpp:184: error: 'OCR0A' was not declared in this scope
AFMotor.cpp: In function 'void initPWM4(uint8_t)':
AFMotor.cpp:202: error: 'TCCR0A' was not declared in this scope
AFMotor.cpp:202: error: 'COM0B1' was not declared in this scope
AFMotor.cpp:202: error: 'WGM00' was not declared in this scope
AFMotor.cpp:202: error: 'WGM01' was not declared in this scope
AFMotor.cpp:204: error: 'OCR0B' was not declared in this scope
AFMotor.cpp: In function 'void setPWM4(uint8_t)':
AFMotor.cpp:224: error: 'OCR0B' was not declared in this scope
I tried different arduino IDE versions as well, it not working out.
Thanks!

https://decibel.ni.com/content/groups/labview-interface-for-arduino?view=discussions

When measuring 6 voltage signals in labview I found that there was a difference in voltage signals in my program but not in the test panel. The test panel is correct. What is wrong with my program?

My labview program is not displaying equivelent voltages, but labview test panel is. So the computer is seeing the correct signals. My program is displaying a small difference in 3 out of 6 channels. All channels should be equal.

G'Day Pops,
You haven't really given us enough to go on - could you please post your VI so we can have a look at it?
cheers,
Christopher
Christopher G. Relf
Certified LabVIEW Developer
[email protected]
Int'l Voicemail & Fax: +61 2 8080 8132
Aust Voicemail & Fax: (02) 8080 8132
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Generating 0 and 1 signal using labview Daq card

Hello,
I’m working on a Project on the On/Off control of a pneumatic cylinder via a 5/2 solenoid valve.
On State: Valve O/P 1 pushes cylinder İ/P 1
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I will be happy if you could help me about 2 points.
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2)      How can we enable the timing between On and Off States. ( On: 0-5 seconds Off: 0-5 seconds )
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The digital out are a great place to start, however they are signal lines which means they don't drive a lot of current (~1mA). If your device isn't setup to accept digital signals you may have to use an external transistor to step up your amperage. See the link on here to get started
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