This is the one automatic temperature control systems, and LCD (1602) display

该书是单片机入门的一本好书，值得大家一看共同学习-The book is a single-chip entry of a good book, it is worth one U.S. study of common look

实现了C8051F040串口的收发 相当实用-Realize the C8051F040 useful serial transceiver

AT24C512中数据的文件系统化管理-AT24C512 document systematic data management

51单片机上实现对PS2手柄的解析，已经实验通过。-51 microcontroller implemented on PS2 handle parsing experiment has already been passed.

RS232单片机程序，使用中断与电脑进行数据传输-RS232 single-chip, the use of interrupted data transmission and computer

由于输出的是方波，比较难听:-) 只能说是非常难听:-)为什么呢？只因为输出的是方波,包含了大量的奇次谐波。 你可以用双龙的"虚拟仪器"分别产生正弦波、三角波和方波听一下，正弦波感 觉就比较纯正，而方波则要多难听有多难听！-As the output is a square wave, more bluntly :-) can only say that it is very nasty :-) Why? Simply because the output is square wave, including a large number of odd harmonics. You can use Shuanglong

89c51的lcd液晶显示代码 ，汉字的显示，仿真通过。-89C51

单片机的键盘矩阵程序，用c语言编写的。绝对的正确，经过机子调试过的。-SCM procedures keyboard matrix, with c language. Absolutely correct, after testing machine before.

CYGNAL单片机，C8051FXXX应用例程6-CYGNAL microcontroller, C8051FXXX routines 6

一个数据库引擎,可以创建和读写DBF格式的数据库文件-A database engine, you can create and read and write DBF database file format