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PZEM-014模块检测电压、电流、电功率、电能等信息，在LCD1602上显示(PZEM-014 module detects voltage, current, power, electric energy and other information, which is displayed on LCD1602.)

说明：  国外标准IEC6116-3工业自动化的编制(discripe the international standard)

51单片机的led灯亮的c语言 程序使其旋转形成圆形(five one single chip microcomputer)

KT0913-AMFM收音IC程序-包含I2C-自动判台-搜台，24C02存台。包含调频调幅两个波段的数字收音机所有功能实现(KT0913-AMFM radio IC procedures- including I2C-automatic sub-station- station search, 24C02 storage units. AM FM band contains two to achieve all the features of digital radio)

Depth First Search For Graph

max7219，利用51单片机控制，点阵显示(max7219, 51 single-chip control, dot matrix display)

说明：  STM32F030F4最小系统led灯闪烁程序(STM library functions led lights)

说明：  基于STM32的定时器的一些简单开发和应用(Simple development application of STM32)

cs的kvsd标准算法，以及kvsd_nn的改进算法(cs of kvsd standard algorithms, as well as improved algorithm kvsd_nn)

STM32F107 音乐播放器、模拟输入混音、音量控制、静音控制。 MDK编译测试成功 (STM32F107 music player+ analog input mixer+ volume control+ mute control MDK version)