In response to the need for calibration of airborne air data equipment, a flight air parameter test system based on STM32F103C8T6 single-chip microcomputer and closed-loop pressure control is designed. The host device is a PC, and the client device is a control system composed of STM32F103C8T6 single-chip microcomputer. The host computer develops controlling system software with LabVIEW. As the kernel module, STM32F103C8T6 single-chip microcomputer is chosen to design the client computer circuit. Besides, this paper designs the adjustable voltage output circuit with TLV5630, the power module, the switch controlling circuit with the relay module, the PWM module with the IO port of STM32F103C8T6 and the RS232 communication circuit with SP3232. Finally, the effectiveness of the controlling system is illustrated by the software.
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