Click on the arrow “blue text” , follow us! Q: How can I see such articles every day? A: Just search for the public account “51 Microcontroller Learning Network” and follow for free. This design guide discusses how to design RS-485 interface circuits. It covers the necessity of balanced transmission line standards and provides an … Read more
Serial Port refers to the serial interface, commonly known as the COM (Communication Port) interface. This is an “old” interface that was primarily introduced to connect computer peripherals, such as mice or modems. Since this interface typically appears in a 9 pin format, it is often referred to as the 9-pin serial port or DB9 … Read more
RS232 communication, RS485 communication, TTL communication, and CAN communication are commonly used serial communication interface standards, differing in electrical characteristics, communication modes, transmission distances, transmission rates, and application scenarios. RS232 Communication: •RS232 is one of the earliest serial communication standards, established by EIA (Electronic Industries Alliance), primarily used for point-to-point communication between early computers and … Read more
Author | Sensor Technology The bus, known in English as “BUS”, is a very vivid analogy. Just like a public bus that follows a fixed route, anyone can take the bus to any stop along that route. If we compare people to electronic signals, that is the true meaning behind calling it a “BUS” instead … Read more
In the field of industrial communication and device connectivity, RS-232 and RS-485 are two commonly used serial communication standards. Their working principles determine their respective performance characteristics, which in turn affect their applicability in different scenarios. Below, we will explore the differences between the two in terms of transmission speed, anti-interference capability, and communication distance … Read more
RS232: Asynchronous transmission standard interface. Typically, the RS-232 interface appears in the form of 9 pins (DB-9) or 25 pins (DB-25). Using a DB-9 9-pin connector, transmission employs shielded twisted pair cables, utilizing only three wires for sending data, receiving data, and signal ground. RS485: A standard that defines the electrical characteristics of drivers and … Read more
1. Overview of RS232 and RS485 RS232 and RS485 are two widely used serial communication standards in industrial control, data acquisition, communication devices, and the Internet of Things (IoT), used for data exchange between devices. RS232, as a classic point-to-point communication standard, is suitable for short-distance, low-speed scenarios; RS485, with its multipoint communication and long-distance … Read more
In the field of industrial communication and device connectivity, RS-232 and RS-485 are two commonly used serial communication standards. Their working principles determine their respective performance characteristics, which in turn affect their applicability in different scenarios. Below, the editor from Wuhan Liyoude will delve into the differences between the two in terms of transmission speed, … Read more
Click the above “Mechanical and Electronic Engineering Technology” to follow us A bus, known in English as “BUS”, is very much like a public bus. For instance, the route of a public bus is fixed, and anyone can take the bus to any stop along that route. If we compare people to electronic signals, this … Read more
In 1896, Italian inventor Guglielmo Marconi achieved the first wireless communication in human history. From then on, humanity opened the door to the world of radio. Guglielmo Marconi (1874-1937) The radio telegraph at that time used a spark-gap transmitter, and the transmitted signal content was Morse code. This radio telegraph could not receive and send … Read more