EMFCamp 2014 Badge Network Controller

The MCP program is the hub, run it on a server. The gateway code runs on each raspberry pi, which all connect back to the MCP.

The gateways have the radios.

Developing

With VirtualBox and Vagrant installed, run:

$ vagrant up
$ vagrant ssh
$ cd /vagrant/  # this is the mounted dir from your host

Running

$ bin/mcp.py
$ bin/gateway.py localhost abc

API

Anything like sending regular weather reports or whatever should be written as a script, cronned, and deliver messages via the http api.

We'll want helper-handlers, like posting to /send-weather or something.

Query status of gateways:

curl "http://localhost:8888/status.json"

TODO schema

CREATE TABLE gateway (
    id SERIAL PRIMARY KEY,
    identifier text NOT NULL UNIQUE,
    hwid text NOT NULL
);
CREATE UNIQUE INDEX gateway_hwid ON gateway USING btree (hwid);

CREATE TABLE badge (
    id SERIAL PRIMARY KEY,
    hwid text NOT NULL,
    date timestamp(0) without time zone,
    gwid integer NOT NULL REFERENCES gateway(id) ON DELETE RESTRICT
);
CREATE UNIQUE INDEX hwid_uniq ON badge USING btree (hwid);