PVmodV2

电力系统电度表通讯协议，主要针对DL645协议标准(Power system meter communication protocol, mainly for DL645 protocol standards)

1．集成计数器、译码器或数据选择器、逻辑门、数码管、开关等分立元件若干； 2．+5V电源一个； (1. Integrated counter, decoder or data selector, logic gates, digital control, a number of discrete components, such as switches 2.+5 V supply one )

应用51单片机写的蜂鸣器的祝福歌,里面有详细的代码(51 microcontroller blessing song written by buzzer)

CPU正在执行一项任务A，然后突然停止任务A去执行任务B，执行完任务B再回来继续执行任务A的过程。(CPU is performing A task. A, then suddenly stop tasks to perform A task B, perform the task B come back again continue to perform the task A process.)

基于51单片机的计步器程序加Proteus仿真，实现记步(Plus Proteus simulation to achieve record 51 single step pedometer-based program)

stm系列外围接口程序以及引用可以解决一些问题(STM series peripheral interface program)

说明：  自抗扰控制的源码，可以用在无人机控制中，也可以在各种场合替代PID(the source code of ADRC)

这是一款单相电子式无线防窃电电能表程序，可实现无线抄表功能。(This is a single-phase electronic energy meter wireless anti-theft program, enabling wireless meter reading function.)

本例程基于STM32F103RC系列ARM单片机的外部按键测试程序(This routine is based on external key test program of STM32F103RC series ARM microcontroller)

说明：  stm32串口，利用串口收发数据，可以接收和发送从电脑传来的数据(stm32 serial port use the serial port to send and receive data can receive and send data from the computer)