STC12C5A60S2

A7159-SPI的驱动程序例程，非常值得你拥有(A7159- SPI driver routines, very worth you have)

说明：  本文件提供了C851F02x利用串口进行在线程序编写相关的代码(The files in this folder accompany the UART In-Application Code Loading Examples Application note. )

2440的原理图，sch格式的，非PDF，欢迎下载(2440 schematic diagram, sch format, not PDF, welcome to download)

此程序为毕业设计之防火防盗报警器具有MQ2烟雾报警，DS18B20温度报警，红外传感器感应人体红外，超声波感应人得进入，加上1602液晶显示等功能，同时具有蜂鸣器及LED报警(This procedure for the graduation of the fire alarm system design has MQ2 smoke alarm, DS18B20 temperature alarm, human infrared sensor infrared sensor, ultrasonic sensor people allowed to enter, plus 1602 LCD function, but also has a buzzer and LED alarm)

4bit to 单精度浮点数转换……上位机处理单片机浮点数时一定会用到……基于labview2012(4bit to IEEE745)

基于stm32f103的多路ADC采集，将采集的电压传入到DMA设定的内存中，在通过均值滤波得到比较准确的数据(Based on the multi-channel ADC acquisition of stm32f103, the collected voltage is transferred to the memory set by DMA, and the more accurate data are obtained by means of mean filter.)

说明：  S7-1200 PLC程序，PID闭环恒压供水PLC程序(PID closed loop constant pressure water supply PLC program)

倒计时倒计时板，可以实现倒计时主题修改，时间设置等功能(dajishi)

MCu based distance measurement from 20-80cm based on SHARP ir sensor

说明：  用于单片机的T9键盘中文输入法，可以方便的移植到各种单片机配合lcd工作(T9 Keypad for SCM Chinese input method can be easily ported to a variety of microcontroller work with the lcd)