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ds18b20
- 单片机485驱动，内容简练，容易懂的，不可多得的学习材料-MCU 485 drives, content, concise, easy to understand, and rare learning materials
Modbus_over_serial_line_V1_02
- This document describes the MODBUS over Serial Line protocol. MODBUS Serial Line protocol is a Master-Slave protocol. This protocol takes place at level 2 of the OSI model. A master-slave type system has one node (the master node) that issues exp
RS485
- 阐述了RS-485总线规范，描述了影响RS-485总线通信速率和通信可靠性的三个因素，同时提出 了相应的解决方法并讨论了总线负载能力和传输距离之间的具体关系。 -Described the RS-485 bus specification, describes the impact of RS-485 bus communication speed and communication reliability of the three factors, while the correspond
1
- 介绍了RS-232到RS-485的转换，以及用此拓扑结构在工程实践中的应用-Introduced the RS-232 to RS-485 conversion, and with the topological structure of the application in engineering practice
RS485designguild
- RS 485 串 口 设 计 英文 介绍-rs485 design guide
port
- 串口测试用，232、485等 串口测试用，232、485等-for serial port
BiLL_Specification
- 485 与232 转换的电路，实现双向传输，是一个公司的很完整的文档-485 and 232 conversion circuit, two-way transmission, is a company very complete documentation
aa
- 485程序 调试程序，基于c8051的，还算可以，大家可以参考-hao de ,zhe ge cheng xu hai ke yi.
RS485PC
- 基于RS-485总线的多CPU控制系统的设计与实现.pdf-RS-485 bus based multi-CPU control system design and implementation. Pdf
SUNRF_2012PCB_LIB
- SUNRF-2012 配置型 透明无线模块 无线485 无线232 产品PCB——LIB 尺寸资料 ，直接PROTELL99SE使用-SUNRF-2012 configuration and transparent wireless 485 wireless 232 wireless module products PCB- LIB size data, with direct PROTELL99SE
SDI-12toRS485
- 气象水文所用的一种通讯格式转换器，单线传输，也能够用方便，功耗小！-Used in meteorology and hydrology of a communication format converter, in-line transmission, and can use the convenient, low power consumption!
DMX512-C
- 512所采用的EIA-485的电气标准是一个总线型的传输线，任何一个接收设备只要接在这两根传输线上，便可接收控制台发出的数据信号。采用DMX512协议标准传送灯光亮度信号，在接收端，数字传输可控硅调光柜需附加一个解码器- DMX512 DMX MEGA8 dmx512 chip DMX512接收程序 485 dmx512 Transceiver DMX512 MEGA8
rs485
- 485通讯资料 485通讯中一个串口可以控制多少个设备的问题是与该485网络中的电气特性和协议特性所决定的。 -485 serial data 485 can be controlled in a number of equipment problems with the 485 network and protocol characteristics of the electrical properties determined.
PYXOS
- 两线制通信芯片 通讯高于485等传统传输线，在通讯的同时提供从芯片的电源-Two-wire communication chip communication than traditional transmission line 485, in communication, while providing the power from the chip
modscan
- 很好的程序 可以实现良好的485通信 我试过 可以的-Good program can achieve a good 485 I tried to the
RS232-485COM
- RS232-485串口通信详解，包括串口的图片及详细参数，值得学串口的朋友-Detailed Serial Communication
ADM2483
- RS-485 transceiver with electrical data isolation Complies with ANSI TIA/EIA RS-485-A and ISO 8482: 1987(E) 500 kbps data rate Slew rate-limited driver outputs Low power operation: 2.5 mA max Suitable for 5 V or 3 V operations (VDD1)
ADM2483
- ADM2483 是带隔离的增强型RS-485 收发器。它包括一个三通道隔离器、一个带三态 输出的差分驱动器和一个带三态输入的差分接收器。其1/8 单位负载的接收器输入阻抗可允 许多达256 个收发器接入总线。最高传输速率可达500Kbps。逻辑端兼容3V/5V 工作电源， 总线端5V 供电。-ADM2483 is enhanced with isolated RS-485 transceiver. It includes a 3-channel isolator, a three-s
PIC-
- 5篇很详细的介绍了关于485通信的一些基础知识，和功能的应用有PIC源程序与协议说明-Five articles very detailed introduces the 485 communications about some basic knowledge of, and the function of the source program and the application have PIC that agreement
RS232-RS485
- 简单的232转485电路图，看完之后也许对你有启发。-Simple 232 to 485 circuit diagrams, and after reading, perhaps you have inspired.