ORANGE Pi 3B - ROS Installation Method; Install ROS 1 Noetic on Ubuntu 20.04

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3.26.
ROS Installation Method
3.26.1. How to install ROS 1 Noetic on Ubuntu 20.04
1) The current active version of ROS 1 is as follows, the recommended version is Noetic
Ninjemys
http://docs.ros.org
https://wiki.ros.org/Distributions
2) The official installation document link of ROS 1 Noetic Ninjemys is as follows:
http://wiki.ros.org/noetic/Installation/Ubuntu
3) In the official installation document of ROS Noetic Ninjemys, Ubuntu recommends
using Ubuntu20.04, so please make sure that the system used by the development board
is Ubuntu20.04 desktop system