A couple of years ago, [philo mech] came across [David Ratliff]’s NeoPixel compass project. Ever since then, he’s wanted to make his own. To his delight, [philo mech] was able to find time to do just ...

The blue dot and direction arrow in Google Maps represent where you are and what direction your device is pointing in. A minor update to the Android app today changes the arrow to a shining blue beam.

A compass is a navigational tool that helps people find their direction using the earth's magnetic field. It contains a magnet that aligns itself with the earth's north pole to indicate the direction.