实验8 模拟音乐-八月桂花

利用可编程计数/定时器8253设计一个应用于生产流水线的自动计数系统。通过具体阐述8253的工作原理，系统的软、硬件设计原理以实现系统所需定时、计数、中断等功能，并驱动扬声器发出所需频率的声音。(Using the programmable counts/timer 8253 design a applied to production line of automatic counting systems. Through the concrete 8253 working principle, hardware and software of the system design principle to achieve system, such as timing, counting, and drive a loudspeaker functions required sounds.)

学习ATK_ESP8266高性能UART_WIFI模块的使用,掌握基本的TCP，UDP通信串口AT指令配置方法，获取天气预报信息，并展示(Learn the use of high performance UART_WIFI module ATK_ESP8266, master the basic TCP, UDP communication serial port AT command configuration method, obtain weather forecast information, and display)

基于stc89c51单片机的四位抢答器。(Based on 51 single-chip four Responder.)

实现数码管的控制功能，比较适合初学者使用并了解数码管(Realization of digital control functions, more suitable for beginners to use and understand digital)

说明：  ++源码参考 成熟方案 参考有关 源码参考 成熟方案 参考有关++(#define _HWAUTO_STEP_1 0x00 #define _HWAUTO_STEP_2 0x01 #define _HWAUTO_STEP_4 0x02 #define _HWAUTO_STEP_8 0x03 #define _HWAUTO_STEP_16 0x04 #define _HWAUTO_STEP _HWAUTO_STEP_2)

PCM相关程序，巩固理论知识，初学者可以学习(PCM-related programs, consolidate theoretical knowledge, beginners can learn)

its about sampling.how to sample.mean getting an idea about sampling

单片机常用芯片手册,非常实用,初学者适合(Commonly used single-chip chip manual, very practical, suitable for beginners)

说明：  用于全桥逆变电路的移相软启控制程序，周期和启动时间均可调节。(Phase-shifting soft-start control program for full-bridge inverters has adjustable cycle and start-up time.)

用51实现超声波测距，在1602上显示，测量精准，并且有详细的注释(With 51 to achieve ultrasonic ranging, displayed on 1602, accurate measurement, and detailed notes)