BH1750

无线通讯nrf905，很适合初学者来学习，里边包括了对射频寄存器的设置什么的(Wireless communication nrf905, it is suitable for beginners to learn, inside contains the settings for RF registers what)

有限差分波动方程不加边界条件二阶正演时间切片程序。(Finite difference wave equation without boundary conditions of second-order forward time-slicing procedure.)

doccument for engineer of electronics

STM32F407信号发生器输入一个正弦波，AD采样，DA输出，系统频率应该是输入的波形的频率的10倍以上保证输出波形的完整性，系统的输出频率可以使用示波器测试出。(Stm32f407 signal generator input a sine wave, AD sampling, Da output and system frequency should is 10 times the frequency of the input waveform to guarantee that the above output waveform of integrity, the output frequency of the system can use oscilloscope to test out. )

包含了C8051的基本例程，如流水灯，IO口控制，蜂鸣器，串口通信等(C8051MCU example programs)

MC9S12系列单片机的学习的资料，里面包括了其重要的技术模块及编程技巧，能帮助大家更好的了解和使用这款单片机(MC9S12 series MCU learning materials, including its important technical modules and programming skills, to help people better understand and use the single chip microcomputer )

STM32的USB上位机，动态库，STM32端原代码以及驱动程序(STM32USB，drive code)

矩阵按键测试程序, 输出结果用串口传输到上位机显示(Matrix key test program, the output with serial transmission to the PC)

VB 开发C51的动态链接库，可以拿来直接用的，(VB-C51 dynamic link library that can be used directly, and)

使用51单片机和18B20采集温度，并用数码管显示(Use 51 And 18B20 collecting temperature and with digital display)