PiHome – home automation done with Raspberry PI and Python

Slide 1

Slide 1 text

PiHome – home automation done with Raspberry PI and Python Wojciech Sznapka Head of Development @ Cherry Poland Twitter: @sznapka PyWaw Summit. Warsaw 2015

Slide 2

Slide 2 text

No content

Slide 3

Slide 3 text

Features ● Steering (switches): – Floor heating steering (on / off / delayed) – Hot water pump steering – Lights ● Sensors: – Current temperature – Draw charts ● History: – switches state – temperatures

Slide 4

Slide 4 text

Hardware ● Raspberry PI B ● Switches module (230V) controlled via Ethernet (ready-made board) ● Dallas ds18b20 one wire temperature sensors ● Bread-board and bunch of wires

Slide 5

Slide 5 text

No content

Slide 6

Slide 6 text

No content

Slide 7

Slide 7 text

No content

Slide 8

Slide 8 text

Software ● Raspbian – with GPIO modules – Supervisord – Apache + WSGI ● Pihome-api – Python – Flask – JSON ● PiHome – AngularJS as a SPA frontend – Twitter Bootstrap – optimized for mobile – Grunt, Bower, Yeoman ● CLI tasks – Queue consumers – Celery tasks

Slide 9

Slide 9 text

Software ● RabbitMQ – relay “store” requests (failover) ● Celery - “delayed” on / off ● MongoDB (hosted at compose.io) – history of sensors and switches ● Memcached

Slide 10

Slide 10 text

No content

Slide 11

Slide 11 text

Future ● Predict time when user wants to use hot water* ● More switches (door, window blinds) ● Connect to alarm to know where users are (PIR sensors) * Machine learning

Slide 12

Slide 12 text

Lesson learned ● Don't rely much on WiFi (have fallback / queue) ● Don't play around with higher voltages unless you're pretty sure what're you doing... ● Be prepared for frequent and random restarts ● There plenty of ready made components, soldering is often last thing, if you want to get things fast

Slide 13

Slide 13 text

Thanks :-) https://github.com/wowo/pihome https://github.com/wowo/pihome-api [email protected]