"Smart" home

Some python code to run on your raspberrypi or similar to measure e.g. temperatures internally and externally. Makes use of openweathermap and DHT22 sensors for now.

The data is stored using a simple SQLite database and can be displayed in your browser using Chart.js.

The web interface is very generic, it will figure out itself what data to display based on what is in the Database. Hence adding data from other sensors is simple:

1. write a class which derives from threading.Thread
2. use a DbWrapper object from the sense module to store your data. When the first insert is called, it'll automatically create the table in the database according to the first datapoints you provide in a dict format.
3. Update the run_sensing.py script to make sure you start the 'sensing' :-).

Configuration file

Make sure you add the following defaults.cfg file:

[server]
debug=INFO
bind_host=0.0.0.0
bind_port=8080
ssl_key=key.pem
ssl_cert=cert.pem
# The following is actually really bad :-)
username=foo
password=bar

[data]
database=data.sqlite3
timeslice=86400
resample=5Min

[indoor_sensor]
sleep=300
dht=22
gpio=14

[outdoor_sensor]
sleep=600
city_id=123
app_id=123

To provide a minimal level of TLS create an openssl server key:

$ openssl req -x509 -newkey rsa:2048 -keyout key.pem -out cert.pem -days 365

To remove the password do:

$ cp key.pem key.pem.org
$ openssl rsa -in key.pem.org -out key.pem

Run the sensors

To kick of all sensors run:

$ python ./run_sensing.py

Run the frontend

To start the web interface run:

$ python ./run_me.py

Now you can visit the dashboard.