This project involved hacking a common Kill-a-Watt power meter to transmit data wirelessly usign an Xbee to my computer (Mac), and then upload the data to two different websites (Pachube.com & Google App Engine) to display graphically…
A much simpler and more useful alternative to plotting with Google is to use Pachube. Pachube allows you to upload your live data and share it with others. Likewise, you can use other people’s data feeds to control something locally or use many feeds to make composite plots, etc. The data is submitted using a fairly simple protocol called Extended Environments Markup Language (EEML) which you can learn about at Pachube.
To upload my data, I used one of the basic python scripts available on ladyada’s site and modified it to send the data tagged in EEML using this python library python-eeml from petervizi. Here is my resulting Pachube data feed and a Flash plot…
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — “If Work Is Digital, Why Do We Still Go to the Office?”
Wearables — Stiff upper lip
Electronics — Signature required?
Biohacking — Race Nutrition – Eating a Bunch of Chemicals
Sorry, the comment form is closed at this time.