DFRobot Gravity DFR0830 Digital 360° Tilt Sensor for Arduino contains a metal ball that moves along its unique internal structure on the effect of gravitation force to make a connection or disconnection. Therefore, it can be used as a simple tilt switch. With digital input, this sensor can be used with an Arduino expansion board to realize various fun interactive works, meanwhile, safer than mercury tilt switch. Compared with the traditional steel ball tilt switch that can only achieve single-direction tilt detection, this DFRobot DFR0830 adopts a cylindrical design to allow inclination detection in 360° directions.