超声波，红外感应，液晶屏

说明：  磁保持继电器通断测试程序，采用AT89S51控制。(Magnetic self-perpetuating relay-off test procedure, using AT89S51 control.)

说明：  精心编写程序模块，关于全国电子设计大赛的资料(Elaborate Programming Module, Information about National Electronic Design Competition)

说明：  单片机的串口通讯，可以实现单片机与单片机间，单片机与PC机间的串口通讯(Serial communication between single-chip computer and single-chip computer and between single-chip computer and PC can be realized by serial communication between single-chip computer and single-chip computer.)

315m 接收模块 英文datasheet(315m receiver datasheet)

说明：  PC-单片机-PC，PC串口发数据-单片机串口接收数据-单片机将接收到的数据发送回给PC(PC-MCU-PC, PC Serial Port Send Data-MCU Serial Port Receive Data-MCU Send Received Data Back to PC)

ATMEG128单片机开发板上自带的LED点阵源程序，给大家分享一下(ATMEG128 microcontroller development board comes with the LED dot matrix source, to share with you)

字模软件取模代码之后，8*8点阵按照代码显示出相对应的字符与简单汉。(After modulus matrix software code, 8* 8 dot matrix display in accordance with a code corresponding to the character and simple Chinese.)

PSoC（Programmable System-On-Chip，片上可编程系统）实验指导，内含5个实验，适合新手学习熟悉功能，希望给大家带来帮助(An instruction of PSoC, 5 samples included,suitable for beginners.May it be hopeful!)

STM32系列单片机USB声卡实验，希望为广大初学者带来帮助。(STM32 series of MCU USB sound card experiment, hope for the majority of beginners to help.)

个人制作的电磁智能平衡直立小车的源程序，希望对有心人有用！(Individuals produced by electromagnetic intelligent balance upright trolley source, I hope to be useful off!)