烧录到单片机后，通过使用超声波模块实现测距功能-After burning to the microcontroller, by using an ultrasonic ranging module functions

1、本例中用到的是STC15W204单片机 2、使用超声波模块HY－SRF05 3、精确测距 4、结果可以通过数码管显示和串口输出-1, in this case is used in the STC15W204 microcontroller 2, the use of ultrasonic module HY-SRF05 3, accurate ranging 4, the results can be digital display and serial output

HCSR04超声波模块 89c51单片机实现的测距(HCSR04 ultrasonic module, 89C51 microcontroller to achieve ranging)

由STM32F4系列单片机作为主控芯片，再加上超声波模块进行测距，实现智能小车避障功能。(STM32F4 series MCU is used as the main control chip, and the ultrasonic module is used to measure the distance, so as to realize the obstacle avoidance function of the intelligent car.)