SP40-38F 超声波测距 + c程序代码和汇编代码-SP40-38F ultrasonic ranging+ c program code and assembly code

SRF-04超声波测距的51单片机C语言代码-51 microcontroller C language code SRF-04 Ultrasonic Ranging

一种超声波发射系统，包括探测信号、同步信号BPSK信号的发射过程，用C代码编写，在CCS软件上实现。-An ultrasonic transmitter system, including firing process detection signal, synchronizing signal BPSK signal, written in C code that implements the CCS software.

easy code ultrasonic SRF04 use C language for MCU89CXX.