This motor is powered by an Arduino controlled with an LSM303 compass module from Sparkfun. When the autopilot module is started up, it first checks to see if the compass module is enabled.

The device uses an Arduino, a GPS module, a compass, and a servo motor. Being a wedding gift, it also needs to meet certain aesthetic sensibilities. The device is in an attractive wooden box and ...

Without changing the distance between the pencil and compass point, place your compass at the other end of the line and draw another arc - crossing the first arc in two places. Follow the ...