Serial communication is one of the most basic communication methods faced by electronic engineers. Although it seems simple, many people are not clear about the subtle differences between UART, RS-232, RS-422, and RS-485. Hope this engineering note can help everyone sort out their relationships. Communication issues, like traffic issues, also have various situations such … Read more
This article introduces the basic concepts of the serial communication protocols RS-232, RS-422, and RS-485, including baud rate, data bits, stop bits, parity bits, and handshaking information. 1. What is Serial Port? The concept of serial communication is quite simple. Serial ports send and receive bytes one bit at a time. Although it is slower … Read more
Table of Contents 1. Key Technical Features of RS-485 2. Application Scenarios 3. Standards 4. Advantages of Using Differential Signal Transmission 5. Similarities and Differences Between RS-422 and RS-485 5.1 Differences in Bus Architecture 5.2 Differences in Common Mode Voltage Range 5.3 Differences in Input Impedance of Receivers 5.4 RS-485 Transceivers with Enable Pins 6. … Read more
01 【Common Ground】 RS-232, RS-422, and RS-485 all belong to UART, which stands for Universal Asynchronous Receiver/Transmitter. They can complete the communication process using only two signal lines (Rx and Tx); However, due to the different voltage levels used by each, when converting from UART to RS-232, RS-422, or RS-485, a chip such as SP3232E … Read more
For business cooperation, please contact QQ: 3350579506 For more exciting consultations, please follow Electrician 365（diangong365） Electrician Home QQ Group: Group ①: 468193845 Group ②: 522898769 1. What is the RS-485 Interface? How Does It Compare to RS-232-C? Answer: Since the RS-232-C interface standard was introduced earlier, it inevitably has some shortcomings, mainly four points: The … Read more
Click on the above blue text to follow us Serial communication is the most basic communication method faced by electrical engineers, and RS-232 is the simplest among them. Many beginners often struggle to understand the relationship and differences between UART, RS-232, RS-422, and RS-485. This article will discuss these concepts to help clarify their relationships. … Read more
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
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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
Serial Communication refers to a communication method for data transmission through serial ports. Data is transmitted bit by bit through data signal lines and ground lines. Common serial ports include RS-232, RS-485, and RS-422. It is important to note that serial ports are only interface standards, specifying the electrical standards of the interface, and not … Read more