Fab-Fi

From Fab Lab wiki

1 Overview
2 Current Implementation - FabFi version 2.0 (updated 7 september 2009)
3 How to Make (currently released / tested stuff)
4 How to Fix (Troubleshooting Docs for users on the ground)
5 Ongoing Development Projects (the bleeding edge)
6 Short Term Objectives and Timeline
7 Who's Who of FabFi
8 Known Bugs

Overview

FabFi is an open-source, FabLab-grown system using common building materials and off-the-shelf electronics to transmit wireless ethernet signals across distances of up to several miles. In Jalalbad, the site of Afghanistan's first FabLab, Fabfi has a functioning, user-supported, multiple point-point network providing internet, MIT OpenCourseWare (OCW) and other resources from the FabLab.

This collection of pages contains everything needed to build, configure and deploy a FabFi link. Send questions, comments, new features, etc. to fabfi at fabfolk dot com.

Before trying to use this page, make sure you understand [the basics].

Current Implementation - FabFi version 2.0 (updated 7 september 2009)

Physical Layout

Jalalabad's FabFi implementation consists of (lots of) remote nodes which provides an uplink and Open Courseware mirror. The long link in the system is 3,880m. Sites include (partial list):

Bagrami Village (375m to FabLab)
Public Hospital Water Tower (3,880m to FabLab)
Public Hospital Administration Building (57m to Water Tower)
Several NGO offices (300m - 500m to Water Tower)
Several private Afghan residences (500m - 4,000m to Water Tower)

(Click image for full size map)

All nodes use Linksys WRT54GL wireless routers running OpenWRT 8.09.1 (Kamikaze) firmware. A variety of reflector designs have been implemented ranging in size from 4' to 18", made from both signboard and acrylic, with chicken wire, stainless woven mesh and window screen as reflective materials.

Addressing and Configuration Conventions

Site Stats and Reports

How to Make (currently released / tested stuff)

Reflector Tech, Design Files and Build Instructions : Everything you need to understand and build your own reflector, with stats on reflectors already in use.
Router (Radio) Tech, Configuration Files and Installation instructions : Everything you need to turn a pair of out-of the box Linksys wrt54GLs into a FabFi.
Alternative Power Solutions : Because "24 hour power" is just a marketing term.
Weatherproofing : Avoid shockingly wet electronics.
FabFi Deployment Guide : Field Trip!