I am working on an a Raspberry Pi based, Internet connected indoor air quality monitor called LiV. LiV is an open source hardware and software project. LiV measures temperature, humidity, air pressure and CO2 levels. I wanted to be able to write measurements data from Raspberry Pi into <a href="http://data.sparkfun.com" target="_blank">data.sparkfun.com</a>, a open source IoT platform.