Read a GMR magnetometer over a trace with an Arduino and display the current throgh the trace on a virtual meter.
Uses an NVE AAL004 magnetometer sensor, an Arduino Uno, Canvas Gauges, and the Involt Arduino-to-HTML framework (based on the Chrome browser and NW.js; previously known as node-webkit).
Involt download: https://github.com/Involt/Involt
Node-webkit download: http://nwjs.io/
Involt intallation instructions: http://involt.github.io/getting-started.html