Jetson Nano

From BATC Wiki
Revision as of 21:56, 15 May 2019 by G8GKQ (talk | contribs)
Jump to: navigation, search

This page is a starting point for resources for using the Jetson Nano to drive a LimeSDR to transmit DATV.

G8GKQ's Installation Procedure

To start with, you need a Jetson Nano, a 32 GB SD Card (Sandisk Ultra 10 recommended), a 4A 5V PSU with a 2.1mm power plug, a 0.1 inch jumper, an HDMI monitor, a USB Mouse and a USB keyboard.

Download the Jetson Nano disk image to a PC and unzip it. Use Win32 Disk Imager or Etcher to write it to your SD Card.

Fit the jumper link to the Nano PCB to select the use of the 2.1mm power socket, insert the SD Card, connect the monitor, keyboard and mouse. Connect the Nano to your home network and then connect the power and turn it on. Go through the NVIDIA start up routine so that you have a working Nano connected to your network. I used the username "nano" and the password "jetson". These are weak and obvious and should only be used on private networks, but make scripting easy.

Right-click on the desktop and open a terminal window. Run the following commands. You will need to enter the password occasionally.

sudo apt-get update
sudo apt-get -y dist-upgrade
sudo apt-get -y install git htop nano vlc

You are now ready to install the DATV software.

Installing DATV Software

Download and install the software from F5OEO's repository:

git clone https://github.com/F5OEO/dvbsdr
cd dvbsdr
./install.sh

Preparing the LKV373A HDMI Device

This is probably the most difficult part of the installation. More details to follow, but I upgraded the firmware (not encoder) to 20160427 using the instructions here: https://www.yodeck.com/docs/display/YO/Creating+a+Video-Wall+with+Yodeck#CreatingaVideo-WallwithYodeck-J.ConfiguringtheLKV373ASenderunit . I also set the unit to factory defaults, but did not change any other settings.

At various times during the LKV373A set-up, it had the following IP addresses: 192.168.1.238, 10.1.0.99, 10.1.2.99, and 169.254.113.227.

The address for the stream is almost always udp://@239.255.42.42:5004 (you can paste this into VLC on a PC and watch the stream. Note that you cannot paste it into VLC on the Jetson Nano.