Setup

Ubuntu

The web server runs nodejs and we use npm for nodes package managment and running the web server Because ROS melodic requires libssl1.0-dev but npm wants to replace it with libssl1.1-dev, disabling ROS, we need to use a workaround

To install, run the following command:

sudo apt-get install curl python-software-properties
curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -
sudo apt-get install nodejs
sudo apt-get install nodejs-dev node-gyp libssl1.0-dev
sudo apt install npm

Ubuntu should come with git and make installed if not run the following command:

sudo apt-get install build-essential
sudo apt-get install git

To forward the camera streams to the webpage we require the ROS web video server

sudo apt-get install ros-melodic-web-video-server

How to Run

The ROS system will boot automatically at startup.

To start ROS, open a terminal and run

roslaunch symbytech symbytech.launch

To start web video server, open a terminal and run

rosrun web_video_server web_video_server

In another terminal, from the crawler_web directory run the ROS server

sudo npm run server

In another terminal, from the crawler_web directory run the web server

npm start

If the web server is already on close it with ctrl-c or using

ps -aux | grep node

to find the PID number of the node process and kill it

Windows

Chocolatey

First install chocolatey - this will manage all the windows installations.

Search for PowerShell in your windows start menu.

Right click on PowerShell and select 'Run as Administrator'.

Select Yes (you may be prompted for your computers password).

Run the following command:

Set-ExecutionPolicy Bypass -Scope Process -Force; iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))

Stay in the PowerShell command terminal.

Node

You are required to install node version manager

choco install nvm

Use nvm to install the correct version of node (8.10) - this version is required for the joystick

nvm install node8.10

Select 'A' yes to all during the installation when prompted.

source: NodeJS

Make

You will be required to install make, run the following command:

choco install make

Select 'A' yes to all during the installation when prompted.

source: GNU Make

Git

You will be required to install make, run the following command:

choco install git

Select 'A' yes to all during the installation when prompted.

source: git

Software Download

You are now required to download the software

git clone https://github.com/symbytech/crawler_web.git
cd crawler_web
npm install

How to Run

Open Powershell in Administrator Mode (by right-clicking and selecting 'Run as Administrator')

npm install --global windows-build-tools

npm run start