DHT90_

超声波测距，可以通过串口助手显示，当小于设定值时，显示0，当大于设定值时，显示1(Ultrasonic Ranging, through serial aides showed that when less than the set value, 0, when greater than the set value, indicating a)

msp430单片机通过产生PWM波控制舵机(msp430 microcontroller to generate the PWM wave control servos)

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)

PLC与51单片机通讯示例程序(单片机程序)(PLC and 51 single-chip communication sample programs (MCU program))

非常好的一个项目。很值得你学习，值得研究，菜鸟吗都可以看看(Very good item. You are worth learning, worth studying, you can take a look at rookie)

对于学习分析时序很有帮助，是一款逻辑分析仪的软件，很有用的。(Timing analysis is useful for learning, is a logic analyzer software, very useful.)

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时钟显示,在实验二的作业里面，希望对大家有用，能够帮助到大家(show the time.)

智能车驱动程序，利用ULN2003A作为隔离，控制BTS7960驱动芯片，实现驱动，程序有限幅，反向等。(Smart car drivers, use ULN2003A as isolation, control BTS7960 driver chip, drivers, programs limiter, reverse and so on.)

18B20电路图,温度传感器，汇编版与C语言版共有及51开发板上的连线(The 18B20 schematic, temperature sensor, assembly version of the C language version of Total and 51 development board of the connection)