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控制蜂鸣器pic18单片机程序,测试通过，已批量生产。(Pic18 microcontroller program to control the buzzer)

射频技术 基于rc500的射频开发系统 频率稳定 不易失真(RF radio frequency technology development system based on rc500 frequency stability is not easy distortion)

DDS9850，亲测可用，有中文解释，信号发生器(DDS9850, pro-test is available, there are Chinese explanation, the signal generator)

ad7812采集程序源码10位的，运用c语言言开发的，环境是KEIL 51。 可直接使用。 (The ad7812 acquisition program source 10, developed using c language words, the environment is the KEIL 51. Can be used directly.)

Full document very cool snd nice

介绍了一种SPI从机的接口verilog编码(verilog code for spi slave )

基于单片机的数控开关电源设计，带仿真和详细程序。(NC-based single-chip switching power supply design, with simulation and detailed procedures.)

使用STM32F103C8T6处理器和OLED显示屏，传感器为IMU AHRS ，实现了串口通信读取数据，并可以使用桌面调试软件读取串口数据。(stm32f103c2t6,oled,imu ahrs)

基于最小冗余线阵的谱相关共轭循环MUSIC算法(MUSIC algorithm based on conjugate cyclic spectral correlation minimum redundancy linear arrays)

AT89C52单片机与VB串行通信的实现实现vb(AT89C52 microcontroller with VB serial communication to achieve vb)