Laser-cut AirCasting Sensor

This is an [AirCasting](http://aircasting.org/) citizen sensor gadget built for the [@iotzh](https://twitter.com/iotzh) city walkshop, with Gadgeteer modular hardware and a laser cutter. For assembly and background [see the Instructable](http://www.instructables.com/id/Laser-cut-AirCasting-Sensor/).

The design is influenced by the [Citizen Sensor](http://www.citizensensor.cc/). It reminds me of Sony's [YPPY walkman](http://www.walkmancentral.com/products/yppy-series). And don't forget to chec