开关稳压电源 开关稳压电源

RS-485接口具有较强的抗干扰性，数据传输的距离较远，在一些应用中常常需要把RS-232标准的信号转换为RS-485的标准信号进传输。图中所示电路允许数据在RS-232/RS-485这两个不兼容的串行数据接口间传递。传输速度为480波特时，传输距离可达1750米。图中双RS-232收发器IC1将主机(PC)输出的RS-232电平转换为TTL电平，驱动高速RS-485收发器IC2 的输入，倒相器使IC2、IC3在受到起始位时被激活。-RS-485 trying to lay all the thoroughly bleed at the nose picking up the birthday 扰 fern cavity 强 ， Chu Huai basin cavity beat escapement for the birthday candle远Now ， Which instance, using Beckmannia中

用于conextop(串口转以太网)的程序，已经测试通过了，非常好用。并且可同过网络调试助手，查看结果-For conextop (Serial to Ethernet) process has been tested, and very easy to use. And can be the same over the network debugging aids, view the results

C到ASM，ASM到C到Keil C

在Proteu环境下的DS18b20测温软件与硬件设计.-Proteu environment in DS18B20 temperature measurement software and hardware design.

这是一个信通时代的汉字显示模块的编程,可以显示中文字体-This is an era of ICT Chinese character display module programming can demonstrate that the Chinese font

一个完善的单片机tcpip实现,包括http/tftp/pop3/smtp,开发环境是富士通的16位单片机-a perfect realization of SCM TCPIP, including http/tftp/pop3/smtp, development environment is Fujitsu"s 16-bit MCU

所以与DDS有关的中文资料及调试心得，打包下载-So with the DDS-related information and debug the Chinese experience, packing Download

我的89S52设计作品之一：基于89S52单片机的数值电压表：该电路采用MAX187高精度A/D转换器，采用串行输出，测量范围直流0-20伏，使用1602LCD液晶模块显示，使用了双积分电路的原理.-One of my design work 89S52: 89S52 microcontroller-based voltmeter values: the circuit with MAX187 high-precision A/D converter, serial output, measuring range 0-20 volts DC, using 1602LCD LCD module shown that the use the principle of double integral circuit.

电子设计工程师手册第五版，模拟部分，详细介绍模拟电路基础-Electronics Design Engineer Manual, Fifth Edition, analog section, details of the basis of analog circuits

水位仪代码，配合水位传感器使用，可以是malay，可以使p+f型编码器-Miriam level code, with the use of the water level sensor, which can be malay, can p+ f-type encoder