Procedure for accessing Raspberry Pi 4 Model B with LabVIEW

Software requirements:

1. LabVIEW 2020 community edition (free trial version available in NI website)

2. NI LINX tool kit (available along with LabVIEW 2020 community edition)

Note: Do not install LINX toolkit separately from VI Package manager

Hardware requirements:

1. Raspberry Pi 4 Model B

LINX Installation steps on Raspberry Pi 4B.

The LINX 3.0 Target Manual Install Process:

LINX Pre installation check points on Raspberry Pi 4B:

1. Setup the Raspberry Pi using the latest Raspbian Buster Image.

2. Setup a Wi-Fi or Ethernet connection from the Raspberry Pi to your router.

3. Enable SSH on the Raspberry Pi.

4. SSH into the Raspberry Pi or open a terminal window on the Raspberry Pi desktop.

5. Check that the Raspberry Pi can access the Internet by entering the command

             ping -c 4 raspberrypi.org

         7. Enter the commands shown in bold below.

# Enable i2c and spi

sudo raspi-config nonint do_i2c 0

sudo raspi-config nonint do_spi 0

# Update Raspbian

sudo apt-get update

sudo apt-get dist-upgrade -y

# Install LINX

sudo sh -c 'echo "deb [trusted=yes] http://feeds.labviewmakerhub.com/debian/ binary/" >> /etc/apt/sources.list'

sudo apt-get update

sudo apt-get install -y lvrt20-schroot

# Move the nisysserver.service and labview.service files to the systemctl folder

sudo mv /etc/systemd/system/multi-user.target.wants/nisysserver.service /lib/systemd/system

sudo mv /etc/systemd/system/multi-user.target.wants/labview.service /lib/systemd/system

# link liblinxdevice.so to the Raspberry PI device driver file liblinxdevice_rpi2.so

sudo schroot -c labview -d /usr/lib -- ln -s liblinxdevice_rpi2.so liblinxdevice.so

# Enable the nisysserver.service and labview.service to start on boot

sudo systemctl enable nisysserver.service

sudo systemctl enable labview.service

# Start the nisysserver.service and labview.service

sudo systemctl start nisysserver.service

sudo systemctl start labview.service

You should now be able to connect to the Raspberry Pi 4B from the LabVIEW Project Explorer.