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Hardware setup

  • 1 Jetson Nano Developer Kit
  • 2 Allied Adapter board for NVIDIA Jetson Nano Developer Kit
  • 2 Alvium MIPI CSI-2 Cameras

Board bringup

  • Install JetPack 4.6.1 (use exactly this version) by flashing the SD card (don't bother with SDK manager)
  • Get the drivers from github
wget https://github.com/alliedvision/linux_nvidia_jetson/releases/download/l4t-32.7.1-4.0.0/AlliedVision_NVidia_nano_L4T_32.7.1_4.0.0.gc3fa7ac49.tar.gz -O ~/AlliedVision_NVidia_nano_L4T_32.7.1_4.0.0.gc3fa7ac49.tar.gz
cd ~
tar xvf AlliedVision_NVidia_nano_L4T_32.7.1_4.0.0.gc3fa7ac49.tar.gz
cd AlliedVision_NVidia_nano_L4T_32.7.1_4.0.0.gc3fa7ac49
AlliedVision_NVidia_nano_L4T_32.7.1_4.0.0.gc3fa7ac49
./install.sh # Enter prompt info as needed
sudo reboot
  • Install apt packages:
sudo apt install v4l-utils
  • To get a list of available v4l2 controls:
v4l2-ctl --list-ctrls --device /dev/video0
  • Install the Jetson GPIO package:
pip3 install Jetson.GPIO
sudo groupadd -f -r gpio
sudo usermod -aG gpio $USER
sudo wget https://raw.githubusercontent.com/NVIDIA/jetson-gpio/master/lib/python/Jetson/GPIO/99-gpio.rules -O /etc/udev/rules.d/99-gpio.rules
  • Create a file at /etc/udev/rules.d/99-record.rules and put in the following:
ACTION=="add", SUBSYSTEM=="video4linux", KERNEL=="video0", TAG+="systemd"
ACTION=="add", SUBSYSTEM=="video4linux", KERNEL=="video1", TAG+="systemd"
  • Copy the systemd service:
sudo cp scripts/record.service /etc/systemd/system/.
  • Enable the service:
sudo systemctl enable record
  • Reboot