Follow+Star Public Account Number, don’t miss out on exciting content Compiled by | strongerHuang WeChat Public Account | Embedded Column RS-485 is a physical layer bus design standard used in industrial and instrumentation applications, and it has become one of the most widely used standard communication interfaces in the industry. This communication interface allows for … Read more
RS485 has strong anti-interference capability and low cost, making it widely used in various fields such as industrial smart instruments and communication devices. The RS485 circuit can be divided into non-isolated and isolated types. Among them, the isolated circuit adds isolation performance based on the non-isolated circuit, giving the circuit stronger anti-interference and system stability. … Read more
RS-485 is a physical layer bus design standard used in industrial and instrumentation applications, and it has become one of the most widely used standard communication interfaces in the industry.This communication interface allows for multipoint bidirectional communication over a simple pair of twisted wires, and its noise suppression capability, data transmission speed, cable length, and … Read more
Introduction I2C bus is a two-wire, bidirectional serial bus, particularly suitable for communication between ICs on or between boards. To meet system safety specifications, avoid noise signal interference during communication, and prevent damage to sensitive components, it is necessary to incorporate I2C isolator devices into the system. Today, I would like to recommend a domestic … Read more
（Image from Wikipedia entry Caerlaverock Castle: https://en.wikipedia.org/wiki/Caerlaverock_Castle ） In the previous article, we introduced the difference between the two concepts of “security” in Chinese, namely Security and Safety, in embedded systems—Safety is generally understood as “functional safety,” while Security refers to “information security”—to distinguish it from the more familiar “cyber information security.” In the following … Read more
Hidden Costs of Isolated RS-485 Optocoupler Design Optocouplers, also known as optical isolators or optoelectronic couplers, have been used for over 40 years to achieve current isolation in electronic circuits. Optocouplers use LEDs and phototransistors to communicate signals without transmitting current. As a low-cost solution, optocouplers have remained popular. But considering the advancements in digital … Read more