The Design of Pressure Test System Based on MSP430 Microcontroller

Abstract:

The design solution presented in this article is a pressure data acquisition system which is based on the piezoresistive pressure sensor and MSP430F249 microcontroller. It can be simulated on the Protues7. FlexiForce-A201 sensor can be seen as a variable resistance in the circuit. Using the signal conditioning circuit and on chip components ADC12 and DAC12 to realize the 8 channels of analog signals and transformation and the A/D conversion accuracy is 12-bit. The results of transformation can be both stored in the M45PE16 flash and real-time displayed on the LCD1602. This system used the on-chip peripherals and powered by button cell. This solution can realize the independence of system and data source by joining up various sensors. It is simple, low-power and universal.

• Periodical: Applied Mechanics and Materials (Volumes 687-691)
• Pages: 3171-3174
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.687-691.3171
• Online since: November 2014
• Authors: Chuang Zhang, Lei Zhao, Tian Wen Li
• Keywords: Data Acquisition, Microcontroller, Pressure Measurement, Pressure Sensor

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