Marek Kuziel: Python in Home Automation

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Marek Kuziel:
Python in Home Automation
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@ Kiwi PyCon 2013 - Sunday, 08 Sep 2013 - Track 1
http://nz.pycon.org/

**Audience level**

Intermediate

**Description**

Using Python to build a Home Automation system by connecting various bits of (open) hardware with protocols such as MQTT, or XMPP. Creating web-based interfaces for HA systems.

**Abstract**

Protocols: brief introduction to MQTT and XMPP protocols. Introduction to related Python tools/libraries.

Hardware: using hardware such Arduino, or Beaglebone as components for a DIY home automation systems.

Low-level: serial communication, MQTT communication, XMPP communication using Python.

High-level: web-based interface(s) for a Home Automation system made in Python.

Connecting the dots: general overview of how Python can be used in Home Automation.

**YouTube**

http://www.youtube.com/watch?v=hXnDyHidDqo

Transcript

1. Python in Home Automation Marek Kuziel
2. TL;DR Everything you need is already out there Do NOT try to reinvent the wheel If it feels wrong, it is wrong
3. /me Studied Automation & Robotics Building a House (kuziel.info/house) Like Open Source Software & Hardware
4. Why (Home) Automation? Automate Repeatable Processes Command & Control Learn & Predict
5. How It Works? Sensor – Button, Light, Sound, Smoke, Temp Controller – ATMega, ARM / C, Python Actuator – Relay, Servo Motor
6. 5 Senses of Home Sight – Cam, Ultra-Sonic, Night, Motion Hearing – Sound Sensors Smell – Smoke Sensors Touch – Buttons, Tablet, Mobile, Web UI Temperature – Heating, Blinds, A/C
7. Bonus Features Light Control Audio/Video Weather Station Garden
8. B.uild Y.our O.wn Hardware Protocols Software
9. /me invents Idea Proof of Concept Implementation
10. /me sobers up Idea is NOT new Proof of concept ≠ production ready Production ready implementation already exists
11. Hardware Arduino Freetronics BeagleBone CubieBoard RaspberryPi
12. Protocols MQTT XMPP socket.io
13. Software Python Mosquitto PyXmpp2 gevent-socketio Django (or any other framework)
14. MQTT “MQTT is a machine-to-machine [sic] connectivity protocol. It was designed as an extremely lightweight publish/subscribe messaging transport.” – mqtt.org
15. mosquitto - Python MQTT Term 1 $ cat << 'EOF' > my_test_client_publish.py > #/usr/bin/env python > import mosquitto > client = "my-test-client" > c = mosquitto.Mosquitto(client) > c.connect("127.0.0.1", 1883, 60) > c.publish("house/announce", "Hello, World! -- %s" % client) > EOF Term1 $ python my_test_client_publish.py Term1 $ mosquitto_pub -t "house/announce" -m "hello there" Term2 $ sudo apt-get install mosquito Term2 $ sudo apt-get install python-mosquitto Term2 $ mosquitto_sub -t "house/announce" Hello, World! -- my-test-client Hello there
16. XMPP “The Extensible Messaging and Presence Protocol (XMPP) is an open technology for real-time communication, which powers a wide range of applications including instant messaging, presence, multi-party chat, voice and video calls, collaboration, lightweight middleware, content syndication, and generalized routing of XML data.” – xmpp.org
17. PyXmpp2 – Python XMPP from pyxmpp2.simple import send_message send_message("bob@example.org", "bob's password", "alice@example.org", "Hello Alice")
18. gevent-socketio – Socket.io Python “Socket.IO enables real-time web communications between a browser and a server, using a WebSocket-like API.” – github.com/abourget/gevent-socketio
19. Control Systems Source: http://en.wikipedia.org/wiki/Control_theory
20. PID Controller Proportional Integral Derivative http://examples.oreilly.com/9780596809577/CH09/PID.py
21. Links • http://arduino.cc • http://freetronics.com • http://jajcus.github.io/pyxmpp2/ • http://kuziel.info/home-made/home-automation/mqtt/ • http://mqtt.org • http://mosquitto.org/man/mqtt-7.html • https://github.com/binarybucks/homA • http://en.wikipedia.org/wiki/PID_controller • http://seeedstudio.com • http://xmpp.org/
22. Thank you! @marekkuziel
23. Questions?