Feetech fs90r analog micro servo continuous rotation feetech fs90r the fs90r is an analog micro servo that is capable of continuous rotation clockwise or anti clockwise as opposed to moving to a set position the servo is ideal for the beginning roboticist and is perfect for use with the motor shield for arduino the servo can be controlled using any servo code hardware or library and to control with an arduino just connect the orange control wire to pin 9 or 10 and use the servo library i