详细介绍RS-485/422原理与区别、元件选择、参考电路、通讯规约、程序设计等方面的应用要点，以及在产品实践中总结出的一些经验、窍门-Detail the difference between theory and RS-485/422, component selection, reference circuits, communications statute, procedures for the application of design elements, as well as practice in the products sum up the experience, know-how

实现DS18b20数字温度传感器的测温！-Digital temperature sensor DS18B20 realize the temperature measurement!

P87C591的CAN通讯程序模块，可在keil下调试运行-P87C591 CAN communication process module, the debugger running under Keil

单片机上支持SD卡。SPI方式通讯，速度几十K-Single-chip support for SD cards. SPI communication, the speed of dozens of K

128*64 LCD 中文显示例程，KS0108芯片-128* 64 LCD Chinese display routines, KS0108 chip

upd6453是NEC 的一颗OSD芯片,这是它的中文文档,还有开发的例子,下载了它,不用再为看几十页的英文头疼了,可以省你很多的时间.-upd6453 is the NEC" s an OSD chip, which is its Chinese documents, as well as the development of an example, download it, do not have to read dozens of pages of the English as a headache, and can save you a lot of time.

ATT7026汇编语言读写程序，原理图，可以直接做成三相电表。-ATT7026 assembly language literacy procedures, drawings, and can directly create three-phase transformer.

8*8led屏全方位移动，希望觉得好的就请多加分数给我，-8* 8led full-screen mobile, want to feel good, please give me more points, thank you

0-99的计数器，使用AVR128单片机制作，从0开始记数到99自动清0，用数码管显示-err

全面介绍了高质量PCB设计技巧，共为8章。-A comprehensive introduction to high-quality PCB design techniques, a total of 8 chapters.