Abstract: In order to solve the real-time communication between the pulse wave signal generator and the PC to download the pulse wave waveform data representing different physiological meanings, a communication program based on VB is designed. The pulse wave signal generator uses AT89S51 as the central processor. The USB interface and CP2101 chip are used to realize the USB to UART expansion to expand a USB interface, and finally VB is used to realize the communication between the pulse wave signal generator and the PC.
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