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Reversing radar -- two ultrasonic ranging module
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The hardware system module includes ultrasonic transceiver module, LED display module, sound and light alarm module, STC89C52 MCU module. Software main program flow chart includes main program flow chart, timing interrupt subroutine flow chart and external interrupt subroutine flow chart. If the distance is less than a certain value, the buzzer will give an alarm. At the same time, each direction corresponds to an LED light, and the corresponding LED will be on when giving an alarm. Two ranging modules are used to improve the safety of reversing and reduce the accident rate.
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