License

Copyright © 2016 Michael Schloh von Bennewitz
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the document entitled “fdl-1.3.txt”

IoT Demos and
Happy Hacking

Presented by: Michael Schloh von Bennewitz
Download at: lect.europalab.com/mozleadsg

In this hour…

• Promoting cause
• Becoming devices
• Devices showcase
• IoT word definitions
• Sensors & actuators

Leadership activities

• Please promote open WoT!

CCC frontline report

• Connected pacemakers
• Connected Japan cats

MQTT cat client sample 0

$ mosquitto_pub -h mqtt.devlol.org -t "devlol/winkekatze" -m "WINK"
$

Publishing to cat using mosquitto_pub(1)

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Connected devices

Not a connected device

Put them together

Put them together

The Physical Web

Device terms

• Connected devices!
• Internet of Thingies
• (Open) Web of Things
• Industrial walled gardens

Device relations

• Sensors produce telemetry
• Actuators consume telecommands
• Computers route, store, forward
• IoT ~= WoT ~= Connected devices

Defining telemetry

NASA: “the highly automated communications process by which measurements are made and other data collected at remote or inaccessible points and transmitted to receiving equipment for monitoring.”

Defining telecommand

Wikipedia: “A telecommand is a command sent to control a remote system or systems not directly connected (e.g. via wires) to the place from which the telecommand is sent.”

Protocols

• MQTT (OASIS spec)
• CoAP (RFC 7252)
• AMQP (ISO/IEC 19464)
• LWM2M (OMA LWM2M)
• ZeroMQ (Nospec)

Transports

• Bluetooth 2/3
• Bluetooth LE
• Zigbee
• Z-Wave
• Internet

MQTT

MQTT JavaScript code sample 1

// Simple subscribe client (use test.mosquitto.org?)      

var mqtt = require('mqtt'), locli = mqtt.connect('mqtt://host/');
locli.subscribe('messages');
locli.on('message', function(topic, message) {
  console.log(message.toString());
});

Subscribing topics via MQTT from the broker

MQTT JavaScript code sample 2

// Simple publish client (use test.mosquitto.org?)

var mqtt = require('mqtt'), locli = mqtt.connect('mqtt://host/');
locli.publish('messages', 'Mqtt is pretty cool');
locli.end();

// Other MQTT features like last will
// testament, data retention, or QoS

Publishing messages via MQTT to the broker

Network topologies

P2P topology

Tree topology

Mesh topology

Star topology

piconets

Master operates on only one mode

Dissecting

BD_ADDR  00:06:66:42:21:52

Dissecting

BLE applications

• Heart rate monitors
• Blood pressure monitors
• Beacon geography targets
• Industrial monitoring sensors
• Public transportation apps

demonstrations

Dirty tricks

Android HCI capture

/etc/bluetooth/bt_stack.conf

Free telem book

Free IoT book