First test with the solenoids and compass assembly. The Sketch is incorrect (actual code in arduining web page). A circular sequence of ON and OFF of the solenoids was used. Working to use an instance of the stepper class. Enjoy the music at less. More info: http://arduining.com/2012/03/04/arduino-compass-stepper-test/ , https://i.ytimg.com/vi/tDp2mOzVbtQ/hqdefault.jpg sourceContinue Reading