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本文介绍了一种基于STM32单片机和导轨的二维平面金属自动扫描装置。本系统包含单片机最小系统电路、步进电机驱动电路、稳压电路、人机交互电路等硬件部分和SPI通信协议程序、电机驱动程序、液晶显示程序等软件部分以及丝杆导轨、同步带导轨等机械部分。本系统通过STM32单片机和LDC1000电感数字转换器,控制以芯片THB7128为驱动电路的步进电机,使LDC1000能够在一个大约为50cm*50cm的平面内进行自动扫描,当发现金属时,进行精确定位,并具有液晶显示、声光提示等多种功能。本系统的设计方案具有原理易懂、方法巧妙、发现目标快速等特点,具有较高的实践价值。
This paper introduces a two-dimensional planar metal automatic scanning device based on STM32 single-chip and rail. The system includes the microcontroller system, the minimum stepper motor circuit, stepper motor driver circuit, voltage regulator circuit, human-computer interaction circuit and other hardware parts and SPI communication protocol, motor drivers, LCD display software and other parts of the screw guide, timing belt guide Mechanical part. The system through the STM32 microcontroller and LDC1000 inductance digital converter to control the chip THB7128 as the driving circuit of the stepper motor, so that the LDC1000 can be about 50cm * 50cm in a plane for automatic scanning, when found in metal, precise positioning, And a liquid crystal display, sound and light tips and other functions. The design of the system has the principle of easy to understand, clever way, found that the target is fast and so on, with high practical value.