We present a remotely controlled test bench for the automated characterization of ultrasonic anemometers. The test bench consists of an electronically controlled wind tunnel, which allows for the real time dynamic control of the wind conditions set to characterize the ultrasonic anemometer under test (DUT). The remote control system is managed by a PC running software for the remote control user interface, and a microcontroller (MCU) embedded in the wind tunnel side, communicating with a full duplex serial interface and organized according to a master/slave architecture. The Monitor Control MCU has been designed as a finite state machine (FSM) for efficient operational logic and prioritized measurement task management, including possible hardware fault detection.