超声波测距报警

MATLAB temperature fieldMATLAB temperature field

stm32hal库开发例程（main.c）

信号检测 51单片机 通过外部中断检测信号源的脉宽周期频率(51 single-chip signal detection signal detected by an external interrupt source of the pulse cycle frequency)

有关MATLAB编程的粒子群群算法，有几个算例可直接使用。 (About MATLAB programming particle swarm swarm optimization, there are a few examples can be used directly.)

DRAW CIRCLES DRAW HALF CIRCLES DRAW SMILEY FACE

说明：  直流电机功能的实现，功能齐全，使用c语言。更加完整。(Realization of DC motor function)

ZigBee无线测温系统。实现ZigBee测温多终端采集。内附使用说明和教程，注释清晰。(ZigBee wireless temperature measurement system. Realize ZigBee temperature measurement and multi terminal acquisition. The instructions and tutorials are attached, and the notes are clear.)

说明：  使用15单片机测量ne555的频率，频率范围 1--20000hz(Measuring the frequency of NE555 with 15 single chip microprocessor in the frequency range of 1-20000hz)

基于PCA的人脸识别代码，识别率可达88 (PCA-based face recognition code, the recognition rate up to 88 )

一款不错的大文件上传控件