gdubya / xively-currentcost

Reading data from the serial connection from a CurrentCost energy meter and submitting it to Xively with a Raspberry Pi.

#Xively CurrentCost I had a CurrentCost energy monitor, a Raspberry Pi and an old Cosm (now Xively) account kicking around, so I thought I'd put them to good use. I started with a Raspberry Pi but in time I'd like to switch it for an Arduino and use the Pi as a central station for relaying data from a number of sensors, perhaps.

##Python

Everything is in the python sub-directory. This script requires the following Python libraries:

• pyserial
• xively-python
• PyYaml

If you install this script using setup.py You need to set API_KEY and FEED_ID as environment variables for the script to pick them up. The cc_xively.py script expects to find these in /etc/xively-currentcost/xively.conf. An example config file is created as part of the setup.py install process.

Lastly, you will probably work this out, but it expects there to be two channels/datastreams on your Xively feed. These should be named:

• electricity_sensor; and
• temperature sensor

There is an init.d script that is installed automatically as part of setup.py install, so you should be able to start it with sudo service cc_xively start and check the logs in /var/log/xively.log

###Final notes If you want it to automatically start on boot, run the following once you've run the Python install:

sudo update-rc.d cc_xively defaults

I also have a CC128 model monitor, which uses pin 4 for GND and pin 8 for the TX part of the Serial communications. This is what you want to feed into the 'RX' pin on your Raspberry Pi.

##Arduino

To-do.