Abstract: In the last years many AIML applications are getting popular, most of them are constrained to computer simulations without any hardware implication. In this case, the target is to get in touch with Nvidia hardware for a potential run-up on real applications, for example robotics.

Resources

By now, the Nvidia-Nano-2B is already waiting for the next components, such as cooler and a microSD-card. In addition, the plan is to buy a raspberry cam (Raspberry Pi Camera Module 2) to do an basic image application.

Nvidia-Nano-2G outdated information, but still valid. The hardware is not anymore available, but the intention is to buy later an advanved version, such as these new Nano boards.

Reference Video here there is a basic good reference to follow.

Getting Nvidia certificate is a good chance to use the Jetson Nano 2GB to get a certificate.

To make FAN to work

go and follow the instructions defined in this repo: Jetson Fan CTL

1. Clone the repository.

2. run the following sudo ./install.sh. The script will automatically run at boot time. It’s a set-it-and-forget-it type thing, unless you want to mess with the fan speeds.

3. Customizing/setting the FAN: editing FAN configuration: vim /etc/automagic-fan/config.json

   {
    "FAN_OFF_TEMP":20,
    "FAN_MAX_TEMP":50,
    "UPDATE_INTERVAL":2,
    "MAX_PERF":1
    }
   

   FAN_OFF_TEMP is the temperature (°C) below which the fan is turned off. FAN_MAX_TEMP is the temperature (°C) above which the fan is at 100% speed. The script interpolates linearly between these two points.

   UPDATE_INTERVAL tells the script how often to update the fan speed (in seconds). MAX_PERF values greater than 0 maximize system performance by setting the CPU and GPU clock speeds to the maximum.

   You can use either integers (like 20) or floating point numbers (like 20.125) in each of these fields. The temperature precision of the thermal sensors is 0.5 (°C), so don’t expect this to be too precise.

   Any changes in the script will be will be applied after the next reboot. You can run sudo service automagic-fan restart to apply changes immediately.

   If you suspect something went wrong, please check: sudo service automagic-fan status

TO UPGRADE THE JETSON

1. edit etc/apt/sources.list.d/nvidia-l4t-apt-source.list to point to the 35.1 repo. To do it just change the version to r35.1 in both lines.
2. use the following command: sudo apt update
3. use the following command: sudo apt dist-upgrade

Example of the content of nvidia-14t-apt-source-list:

*****@jetson:~$ cat /etc/apt/sources.list.d/nvidia-l4t-apt-source.list
deb https://repo.download.nvidia.com/jetson/common r35.1 main
deb https://repo.download.nvidia.com/jetson/t210 r35.1 main

TO INSTALL JTOP

Another important tool is to install the JTOP tool. It is used to monitor the system statistics, including CPU and GPU. Details are provided in the following link Installing JTOP

1. sudo apt update
2. sudo apt install python3-pip
3. sudo pip3 install -u jetson-stats
4. rebooting the system.
5. jtop