arduino must have


I will show you how to quickly get started with a LabVIEW interface for Arduino. The Arduino is a programmable microcontroller board that has several analog inputs and digital io lines. The Arduino language is text based and is used to create embedded programs called sketches, which you download to the board in this tutorial, we’ll be focusing on the LabVIEW interface and not so much on the sketches themselves. The Arduino is claim to fame. Is that all of the hardware and software is open source? You can even build your own Arduino board from published designs, but most people purchase one of the ready made boards. The Arduino has a USB interface used for programming the device and reading data from it. The Arduino works both on the Mac or the PC. There are quite a few daughter boards on the market that you can plug into the Arduino. These are nicknamed shields, for example, there’s, an Ethernet interface, XP wireless Bluetooth, module motor control, module can bus interface, GPS receiver, video output and hundreds of others there’s a company out of Italy that has taken on the task and business of building a standard series of boards. Every so often they Rev the boards to add minor improvements. They currently produce 2 flavors of the board there’s, the uno, which is around 30 and then there’s, the mega 2560 at around 65. The main difference between the boards are the number of io lines and memory. Both boards have digital io lines.

The uno has 14 to July, Oh, which six of which can be PWM outputs. The mega has 54 digital io, 14 of which can be PWM outputs. The uno has 6 analog inputs, and the mega has 16 analog inputs. Both boards have 10 bit resolution analog in between 0 amp 5 volts. The uno has 32 K programmable memory and the 2 and the mega has 256 K programmable memory. Both boards have SPI interfaces which can interfaced other devices, and both have I squared C interfaces as well. Labview interface forward, we know, is a VI based API that was written and distributed by National Instruments. The code also includes an Arduino embedded program which must be downloaded to the device. The program which runs on the Arduino responds to commands sent on the USB bus from the LabVIEW program. It then sends back data to the computer via the USB. The LabVIEW VI is provided, allow you to read back the analog inputs, control the digital io lines and use several other features of the Arduino hardware. Unlike other software provided by National Instruments, the lab unifies for Arduino is currently only supported by the NI comm communities. Section of the website you can get more information at ni, comm, slash arduino. There are several requirements for using the arduino with lab deal. First of all, you have to have at least lively, 2009 or newer. You must have the NI visa drivers installed. You must have the lab interface for Arduino VI package installed with the I package manager.

Of course you need the Arduino drivers, if you’re using windows, if you’re using Mac, you don’t actually need the drivers and you need the arduino ide software. You can tell if your Arduino is connected correctly and the drivers are installed properly. If you go into device manager, you should see under your ports. You should see the Arduino Uno show up as a comport, in my case, it’s showing up as com2, but you can change the comport by going into the device properties under measurement and automation, explore this same. Comport should show up under serial and parallel under devices and interfaces. Here we can see com2 and also under software. You should be able to see your ni visa with a version number in my case, it’s 5.0 point 3, which is the current version. Finally, if you have your arduino ide software installed, you should be able to load it up, and it looks something like this and here I’ve opened the LabVIEW interface for arduino, sketch program that’s required to be downloaded to the arduino there. You can see the program you and this I’ve already loaded it up and it’s located under the LabVIEW installation, folder it’s under Program Files, National Instruments, LabVIEW version VI, Lib, LabVIEW, interface, Ford. We know firmware LabVIEW interface, Ford, we know bass, folder and the file is called lv, feh underscore based PDE and when, if we download it to the Arduino actually it’s called upload here, we upload it you’ll see the status saying uploading to IO board again.

This must be done before you can actually use LabVIEW with the Arduino you’ll, get some status messages here, and it should say done uploading. This is a simple example. I quickly put together to show how to use the LabVIEW interface for Arduino. If you’re familiar with the 1980s TV show Knight Rider, there was a car on that show with which had scrolling LEDs on its hood. The car was called KITT and this software and it simulates the scrolling LEDs found on that car. So if we run the program, you’ll see that the scrolling LEDs, scroll, left and right let’s take a look at the code. Here we initialize the Arduino to com2, which is where i’m connected to initialize 12 of a digital io lines as outputs. Here i initialize an array of LEDs, an LED pattern and I’m making an array of LEDs that are all false and here I’m indexing through the LEDs, replacing three LEDs and making them true and scrolling that those three LEDs from left to right and right to left. Finally, I’m. Writing. This LED pattern to the output lines while inside this loop, I’m also reading an analog input of the Arduino which is connected to a voltage, divider or potentiometer. That is feeding that 0 to 5 volt signal into one of the analog inputs and I’m outputting that voltage here on the screen. At the end, I close the Arduino and I’m done. As you can see here, we have the Arduino hooked up to about 12 LEDs and a potentiometer which is connected in a simple voltage.

Divider set up to 5 volts, which is provided from the Arduino into one of the analog inputs. If I adjust the potentiometer to the left, you’ll see that the scrolling LEDs scroll by faster fire turn the to the right the voltage increases and thus the delay increases in our while loop. So they are d scroll by slower. One. Last thing I’d like to show in this too toriel is all the various vis that are available in the pallet that gets installed with the LabVIEW interface for Arduino here’s here’s, a summary of all the different palates available. The top level palette contains the anit VI and the closed VI then there’s three, if there’s, actually four sub palates between the top level palate examples. One is very good which you should take a look at to get started. There’S examples for analog, read temperature reading photocell, generating tones controlling RGB, LEDs 7 segment, displays thumbstick, read back and then a light show. Example. These examples are very good. They have on the block diagram documentation, including wiring, diagrams, on how you can connect your dwee know to the various sensors used in the example there’s, a specific sensors palette that allows you to convert analog input, readings from the Arduino to temperature, a light intensity and there’s. A various LED sensor management here, there’s also seven segments to display or you can actually feed in a string and it’ll output, a seven segment display output, there’s a thumb, stick: sensors, where you can control a thumb.

Stick value. Xy coordinates there’s a specific sub palette here. For the blink em blink M is a three color LED sensor, that’s programmable and is popular in the lab in the in the Arduino community in the low level palette is where you could actually break out all the different lines of yard. We know you can select specific analog input lines. You can read an entire port, the same with the digital io lines. You can configure them as inputs, outputs and read or write an entire port or individual lines, and here you can also control the PWM lines on the Arduino. Using these V is a sub palette of the low level is the SPI interface and there’s. Also the I squared C thank you for watching this video. Remember that all the codes shown is available for download on the VI Shots website. Hopefully the tutorial was helpful and gave you some ideas that you can use in your own LabVIEW software development.


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Fri Aug 03 10:44:52 +0000 2018

RT @ikravets: A must-have tool 🔪 for advanced embedded development!
I’m so proud of how @PlatformIO_Org grows! A few years ago it was #1 re…

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Thu Feb 28 16:10:39 +0000 2008

RT @ikravets: A must-have tool 🔪 for advanced embedded development!
I’m so proud of how @PlatformIO_Org grows! A few years ago it was #1 re…

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Comment (23)

  1. please help to solve this error .I am using arduino 1.6.4
    error: ‘TKD2’ was not declared in this scope int RECV_PIN = TKD2; // the pin the IR receiver is connected to

  2. Don’t use this method, it’s a pain in the ass with the connection issues and can break your arduino.
    Just use Visa and have the arduino interact with labview separately.

  3. Can you post this vi program pls. I am finding it difficult to backward engineer from the video images and I would like to run it

  4. Hi man, thanks for your video but you seem to jump some steps… after “done uploading”, please let me know step-by-step how you acquire and display data on LabVIEW.


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