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VNC desktop environment

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Intro

If you've ever run into a situation where you need to view a raw stream from the NavQ's Google Coral Camera, or need to run a lightweight GUI application on NavQ, you can do so using the guide below.

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Instructions

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Installation

You can run the commands below to start a VNC server on your NavQ.

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Connecting

You can use TightVNC to connect. You'll want to use the IP address of your NavQ at port 5901.

# Credit to: https://www.vandorp.biz/2012/01/installing-a-lightweight-lxdevnc-desktop-environment-on-your-ubuntudebian-vps/#.YCQEGS1h3O4
# Install X, LXDE, VPN programs

apt-get install xorg lxde-core tightvncserver

# Start VNC to create config file

tightvncserver :1

# Then stop VNC

tightvncserver -kill :1

# Edit config file to start session with LXDE:

nano ~/.vnc/xstartup

# Add this at the bottom of the file:
lxterminal &
/usr/bin/lxsession -s LXDE &

# Restart VNC

tightvncserver :1

GPS Time

GPS Time for Small Unmanned Aerial Systems by Part 1: Part 2:

Andrew Brahimarrow-up-right
https://dirksavage88.medium.com/gps-time-for-small-unmanned-aerial-systems-a-primer-for-better-drone-technology-part-one-52d91a908323arrow-up-right
https://dirksavage88.medium.com/gps-time-for-small-unmanned-aerial-systems-pps-beginnings-part-two-f1a45d0882e1arrow-up-right

Miscellaneous Linux Commands

This section is for various linux commands that may be useful when using the NavQ, and the Demo image.

Linux: Get the core temperature

The i.MX 8M Mini parts are rated 0C to +95C. We do not expect they will need any additional heat-sinking, especially while flying, but you can monitor the core temperature with the following command:

cat /sys/class/thermal/thermal_zone0/temp