See The Air - Air Quality Monitor v0.1 is a DIY project which was designed with the help of @electronza at https://electronza.com and is featured at https://seetheair.wordpress.com I am very grateful to Teodor Costachioiu for his tremendous work. A Nitrogen Dioxide sensor made by Spec-Sensor DGS-NO2 968-043 is connected to an Arduino board Flip&Click SAM3X. You can lean more of what this version does and how to set up the device at https://seetheair.wordpress.com Thank you