C51串口扩展5个源代码，可以弥补51单片机串口不足的缺点，

MCS-51单片机实用子程序库.htm-MCS-51 microcontroller practical subroutine library. Htm

msp430f449的文件 很有用的-MSP430F449 useful documents

控制小车用PWM方式来控制小车的转速，小车的步进电机需要用直流电机控制，因为单片机产生的电流小，需要驱动-Vehicles with PWM control mode to control the car

实时时钟【LCD光标显示，按键调时】-.

PHILIPS单片机P89C668下的X5045的读写,经过调试可以在51内核的单片机上移植.-PHILIPS P89C668 the X5045 read and write, After testing in the 51 core microprocessor transplant.

MSP430基本编程学习资料 （端口，时钟，定时器，。。。）-Basic learning materials MSP430 Programming

这是个火车传感器的小程序，在某车厢里存放N个传感器，当某个传感器温度超过或者低于某个指定范围，系统发出警告。-This is a small sensor train procedures, in a vehicle storage N sensors, When a sensor temperature is over or below a certain designated areas, the system issued a warning.

用89c2051模拟产生dtmf信号，广泛用于防盗报警、电话数据传输等；节省发号及收号电路，成本低。-with 89c2051 simulation of DTMF signals, widely used in anti-theft alarm, telephone data transmission; Savings and resumption of the circuit, and low cost.

利用mega128控制由L298和L297构成的驱动板，驱动步进电机-Mega128 control using L298 and L297-driven composition of boards, stepper motor driver

2.4GHz射频芯片CC2420数据手册-2.4 GHz IEEE 802.15.4/ZigBee-ready RF Transceiver