Node.JS REST server - Arduino

1 - Objectives :

• Code the Arduino to work as needed.
• Build the REST server to interface with the Arduino board with Ethernet Shield.
• It must implement defined interfaces for each sides : Client & Arduino.
• Create client (iOS & JQuery) to work with the server

2 - What it does :

1. The server handles requests from the client, from URL or POST data ;
2. It firstly checks those requests and builds the appropriate JSON object ;
3. It secondly sends those JSON objects trought TCP to Arduino, and waits for the answer (JSON object) ;
4. It finally sends back the answer to the client.

=> The client use the provided API to interact with the Arduino

3 - How it Works :

We've choosen to separate the server's functionnalities in 3 different 'Layers' :

• web.js : handle web request ;
• metier.js (formaly 'service.js') : build JSON from request ;
• dao.js : Arduino registration & communication ;

The interfaces :

1. Interface between REST Server / Arduino :

To Document

2. Interface between REST Server / Client Server (public API):

• The REST server receive request by URL or POST, like this:
  • http://ip:port/server-restServer/arduinos
  • http://ip:port/server-restServer/arduinos/cmd_id/arduino_ip/ (POST, sending JSON in body)

4 - Authors

Written by Baptiste Gauduchon and Yann Jajkiewicz, designed for a project in our last year of engineering school.

ISTIA Ei5 AGI 2013-2014