# libxaal demo
A set of small apps using libxaal (a xAAL library in C)
Conforms to xAAL specification v0.7


## Devices
Following  applications are proposed as proof of concept:

- dumper: Listen to the xAAL bus and (pretty) print messages to stdout
  Usefull for debugging purpose
  Alternatives without decoding messages:
    tshark -i eth0 -Y "ip.dst == 224.0.29.200"
    socat UDP-RECVFROM:1236,ip-add-membership=224.0.29.200:0.0.0.0,reuseport,fork STDOUT

- dummyLamp: Behave like a basic lamp
  Accepts on/off queries; show results on stdout

- lampCommander: A simple command-line HMI for lamps
  It listens to 'alive' messages from lamp devices and maintain an internal
  list of discovered ones. (It manages timeout.)
  The 'select' menu allows to select/deselect which of the discovered lamps
  one then wants to command.
  The 'on' menu sends a 'on' request to selected lamps.
  The 'off' menu sends a 'off' request to selected lamps.

- thermoPC: Themperature of your CPU(s) on xAAL
  Dependencies: libsensors4-dev
  The intent of this piece of code is to sow 'groupped' xAAL devices.
  It exposes as much as 'thermometer.basic' devices as your libsensors
  reports temperature sensors for your CPU(s). Try: sensors|grep '^Core'
  Note that if you really need to monitor sensors of your PC, snmp is a
  better choice: http://www.net-snmp.org/wiki/index.php/Net-SNMP_and_lm-sensors_on_Ubuntu_10.04

- thermoWatch: Displays thermometers values
  It listens to 'alive' messages from thermometers devices and maintain an
  internal list of discovered ones.

- tattler: An exotic sensor that monitors given Ethernet addresses on the
  home network and sends xAAL notification about their presence.
  It does the job by looking at the neighbors table (ARP), and sends UDP
  probes when nodes fall in a stale state, and after waiting a configured
  time. Note: this time is given in seconds, it can be 0 (immediately), or
  negative (no probes). The configuration file is in a json format.
  Dependencies: libmnl-dev libjson-c-dev

- azerty: A dummy set of switch buttons (i.e., your keyboard)
  Dependencies: libjson-c-dev


## Copyright
- Christophe Lohr - IMT Atlantique - 2019
- The demo applications are provided according to the terms of the
  GNU General Public License v3.0 and following
- Dual-licenses are accepted, contact us.