PICDoorbell

说明：  内含C文件及Proteus仿真文件 矩阵键盘输入密码，初始密码为12345678,每按一次键有短滴声,输入密码正确液晶屏显示正确信息并且电机转动，输入密码错误会发出警报，LED灯闪烁，复位取消警报，0--9号键为数字键,10号键为确认键，11号键清除键清除所输入密码或取消修改密码，12、13、14号键实现修改密码功能。(Containing C file and Proteus simulation file Matrix keyboard input password, the initial password is 12345678, every time a key is pressed, there is a short sound, the correct input password LCD screen displays the correct information and the motor rotates, the input password error will send an alarm, LED flashes, reset and cancel the alarm, 0-9 keys for the digital key, 10 keys for the confirmation key, 11 keys to clear the input secret. Code or cancel password modification, key 12, 13, 14 to achieve password modification function.)

BISS-B 源代码。包含传感器模式和寄存器模式(BISS-B source code. Includes sensor mode and register mode)

PID温度控制，用10K的NTC采样，温控精度为0.1(PID temperature control, with 10K of NTC sampling, temperature control accuracy of 0.1)

通过DS1302时钟控制的继电器动作。时钟可调。(By DS1302 clock control relay. Clock adjustable.)

针对FastDFS分布式文件系统的功能测试代码(Functional test code for FastDFS distributed file system)

液晶1602单片机驱动程序代码，适合stc89c52rc,at89s52.(The driver code of 1602 display,for mcu stc89c52rc,at89s52.)

简单实现呼吸灯功能，希望能帮到有需要的人，也希望各个大佬纠错(Simple realization of breathing lamp function)

本设计主要实现用按键控制步进电机四相单拍、四相双拍和四相八拍三种方式切换， 正、反转及其加、减速，并能在LCD上显示其运行状态（速度和转向）。(The design of the main keys to achieve control of stepper motor with a single shot four-phase, four-phase two-and four-phase eight-shot shoot three ways to switch Positive, reverse its acceleration, deceleration, and in its operational status on the LCD display (speed and steering).)

RTT常见函数，可以清楚的了解RTT的调用关系，非常实用(RTT common function, can clearly understand the calling relationship of RTT, very practical)

超声波测距，测量精度为1cm，可以使机器人安全避障。(Ultrasonic distance measurement accuracy of 1cm, can make the robot obstacle avoidance safety.)