ping-slave

This is the Client side application ran on the beacons used by the ping project. It is a node.js server application which will be used as websocket client for the server application, found in the repo ping-master.

This repo features:

• Receiving files, and store them to the storage or storage/temp folder.
• Getting files from the filesystem and upload it to the socket.
• Deleting files.
• Executing commands on the beacon.
• Return the serial number of the raspberry pi as identification of the beacon for the master project.
• Return the git version number.
• Executing python commands on the beacon.

Raspberry usefull links

• Install clean distro using MAC OSX
• Enable SSH
• Wireless (cli)

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system eg the beacons.

Prerequisites

What things you need to install the software and how to install them

• Node.js
• NPM (installed with Node.js)
• Common sense ;)

Installing

A step by step series of examples that tell you how to get a development env running. There is not a lot into it.

####Project setup

npm install

Compiles and hot-reloads for development

this uses nodemon

npm run serve

Deployment

First setup a wifi connection to connect with

https://www.raspberrypi.org/documentation/configuration/wireless/wireless-cli.md

Then enable ssh

https://www.raspberrypi.org/documentation/remote-access/ssh/

Then run installation guide

Then next part is pointed at the installation of node, this is also present in install.sh

Node

set the environment to production

NODE_ENV=production

copy the env variable and edit it if the configuration does not meet the current system

cp .env.example .env
# optional if the configuration does not meet the current system
nano .env

install the packages

npm install

run on production, the & is to run it in the background

node src/index.js &

Updating

here we will not assume you use pm2, if you do use it, forget the commands fg and node src/index.js &

fg
# then type CTRL+C
git pull
git reset HEAD --hard
npm install
node src/index.js &

Development

Python development

pm2 stopzetten om te testen: sudo pm2 stop index

Git directory: cd /root/ping-slave

Python directory: cd /root/ping-slave/python

python (2.7) executen vanuit een los terminal window python ping.py

python stoppen vanuit een ander terminal window pkill -f ping.py

commando's om te sturen

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Built With

• Node.js - The server framework used
• socket.io-client - Socket.io client. The client version for the websockets

Authors

• Friso Modderman - 404 solutions - Developer & Node.js - adminfriso
• Gijs van Bon - van Bon - Artist & Python - GvBon