My attempt at making an EMF meter for measuring electro-magnetic frequencies. The goal is an audification of the inaudible frequencies, specifically the cellular frequency band (usually 800-2000MHz).
I would like to point out that I support science and reason, and as of now, has seen no evidence that suggest dangers with EMF, but given limited knowledge of long-term effects, I support precautionary principles. Due to the nature of non-ionizing radiation in that frequency-range, do not be afraid of the term microwaves because you might associate it with microwave ovens. The microwave part of the spectrum ranges from 1GHz to 30GHz, and with so many things (e.g. sunlight) it is a matter of amount of exposure as well as heating capabilities.
I used this tutorial: http://makezine.com/2009/05/15/making-the-arduino-emf-detector/
Source code is available here as well: https://forum.arduino.cc/index.php?topic=137788.0
