Based on the C8051F410 microcontroller Ultrasonic Ranging procedure, the use of ultrasound for the HC-SR04 module, test distance of up to 4 meters. Using a serial output print to the serial port of the computer.

410_超声波测试\HC_SR04
..............\HC_SR04.bak
..............\HC_SR04.C
..............\HC_SR04.lnp
..............\HC_SR04.LST
..............\HC_SR04.M51
..............\HC_SR04.OBJ
..............\HC_SR04.plg
..............\HC_SR04.uvopt
..............\HC_SR04.uvproj
..............\HC_SR04_uvopt.bak
..............\HC_SR04_uvproj.bak
410_超声波测试

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