RS 485

Hardware and Software Layer Protocols for Embedded Device Communication

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Hardware and Software Layer Protocols for Embedded Device Communication

Click below【Learn Embedded Together】 to follow, learn together, and grow together Introduction to Communication Protocols As we all know, a communication protocol is a specification for data transmission. It can be divided into hardware layer communication protocols and software layer communication protocols from both hardware and software perspectives. To better understand the communication protocols at … Read more

Common Hardware Interview Questions: Communication Protocols

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Common Hardware Interview Questions: Communication Protocols

Source: One Linux GIF source: www.parlezvoustech.com 1. Common Hardware Communication Protocols? Serial Communication Protocols UART (Universal Asynchronous Receiver Transmitter): Asynchronous serial communication protocol that does not require a clock signal, commonly used for simple point-to-point communication. SPI (Serial Peripheral Interface): Synchronously used for high-speed communication between microcontrollers and external devices such as sensors and storage … Read more

3 Reasons Why CAN is Better Than RS-485

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3 Reasons Why CAN is Better Than RS-485

Introduction RS-485 and CAN are both serial communication protocols. They allow for the arrangement of multiple devices within a single system, significantly reducing cable lengths. Their differential design is suitable for environments with strong interference, and both use 120 Ω termination resistors, equipped with internal over-voltage circuits for fault protection.RS-485 and CAN have many similarities, … Read more

Simple and Convenient RS-232, RS-485, and RS-422 Conversion Solutions

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Simple and Convenient RS-232, RS-485, and RS-422 Conversion Solutions

In industrial applications, there are many bus application scenarios, such as the conversion between RS-232 and RS-485 with bidirectional isolation, and the sharing of RS-485 and RS-422 interfaces. This article will introduce solutions for such applications that are not only simple and convenient but also improve communication reliability. High-Performance RS-232 to RS-485 Bidirectional Conversion Circuit … Read more

Choosing RS-485 Bias and Termination Resistors

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Choosing RS-485 Bias and Termination Resistors

RS-485 automatic transceiver circuits are favored because they use one less I/O pin compared to circuits with control pins, making them more popular in resource-constrained master control scenarios. How does the automatic transceiver achieve automatic sending and receiving, and what factors should be considered when selecting bias and termination resistors? RS-485 Automatic Transceiver Principle The … Read more

Differences Between RS-232, RS-422, and RS-485

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Differences Between RS-232, RS-422, and RS-485

Siemens S7-1500 Project Design and Practice Complete Tutorial! Siemens Communication Principles and Methods Mastery Tutorial Free Download! Over 600 CasesElectronic Repair TipsRepair Engineer’s Bible! Over 600 Common Electrical Circuit Diagrams Pack Download for Free! Popular Brand PLC Programming Series Books Free Download! Serial communication is the most basic communication method faced by electrical engineers, with … Read more

Differences and Connections Between RS-232, RS-422, and RS-485

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Differences and Connections Between RS-232, RS-422, and RS-485

10 Free Training Materials for Industrial Robot Brands! (Click on the abovebrown text to download the materials) Serial communication is one of the most basic communication methods faced by engineers, with RS-232 being the simplest. Many beginners often struggle to understand the relationship and differences between UART, RS-232, RS-422, and RS-485. This article will discuss … Read more

Why RS-485 Requires Isolation?

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Why RS-485 Requires Isolation?

Follow+Star Public Account to not miss exciting content Compiled by | strongerHuang WeChat Public Account | Embedded Column RS-485 is a physical layer bus design standard in industrial and instrumentation applications, which has become one of the most widely used standard communication interfaces in the industry. This communication interface allows for multipoint bidirectional communication over … Read more

Understanding RS-485 Transceiver Challenges

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Understanding RS-485 Transceiver Challenges

Don’t go away, there’s a surprise at the end! Are you troubled by issues related to RS-485 transceivers? Don’t worry! This article provides insights based on frequently asked questions from the Texas Instruments online support community E2E™, which will surely help those wanting to understand this established communication standard! When is it necessary to terminate … Read more

A Detailed Overview of RS-485 Bus

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A Detailed Overview of RS-485 Bus

Follow and StarEmbedded Inn, Exciting News Delivered Promptly [Introduction] Hello everyone, I am Yijun. In the previous article, I summarized the industrial HART bus. Today, let’s talk about the RS-485 bus. RS-485 is also a widely used communication interface. This article will discuss the key points; it is a bit long, about 5000 words. History … Read more