Introduction - If you have any usage issues, please Google them yourself
Ultrasonic Distance Measurement Based on C8051F040 source code, I believe that for those familiar with the C8051F MCU and its use have great usefulness
Packet : 73462716f040chaoshenceju.rar filelist
F040超声测距\20-6 超声测距\c8051F040.h
F040超声测距\20-6 超声测距\mylcd.h
F040超声测距\20-6 超声测距\PUTCHAR.C
F040超声测距\20-6 超声测距\ultra_sonci.c
F040超声测距\20-6 超声测距
F040超声测距