基于MSP430F149的便携式超声波测距仪设计

摘要

According to ultrasonic ranging principle, a portable ultrasonic ranger based on MSP30F149 was designed.Design of hardware circuit of the ranger was introduced in details and main program flow of software of the ranger was given.The test result showed that the ranger has stable running and reliable performance, and measuring precision is 2 mm.%根据超声波测距原理,设计了一种基于MSP430F149的便携式超声波测距仪;详细介绍了该测距仪硬件电路的设计,并给出了该测距仪软件主程序流程.测试结果表明,该测距仪运行稳定、性能可靠,测量精度可达2 mm.