Intelligent detection systems are crucial for ensuring safety in public places such as schools, sports venues, shopping malls, and crowded hospitals. The global security detection market was valued at $1 billion in 2023 and is expected to exceed $2 billion by 2030. Traditional security measures, such as passive cameras and metal detectors, have limitations, including … Read more
IntroductionWith the development of Internet of Things (IoT) technology, smart agricultural monitoring systems have been widely adopted. Wireless Sensor Networks (WSN), as one of the core technologies, can collect environmental parameters such as soil moisture, temperature, and air quality in real-time and transmit them to a data center via wireless communication. However, since sensor nodes … Read more
A distributed sensor network (hereinafter referred to as a distributed sensor network) consists of a series of sensors connected via the Internet. These sensors can be embedded in an integrated circuit device, capable of collecting signals, processing signals, communicating with each other, and performing simple computational tasks. Sensors are arranged in different environments, and the … Read more
Innovative Applications: New Ways to Use Schneider PLC in Smart Homes for a Comfortable and Convenient Life Hello everyone, I am Engineer Liu. Recently, while chatting with several long-time clients, I found that they are particularly interested in the application of PLCs in home scenarios. Today, let’s discuss how to use PLCs to achieve smart … Read more
: Recently, I modified an old device that required communication control applications, from which I derived some insights: 1. FX2N-485-BD is economical to use; A./ (ASCII communication mode, operation, and frequency register address can be easily mistaken, but LRC checksum is easy to obtain)/ B../ (RTU communication mode, operation, and frequency register address is less … Read more
Abstract This article introduces the correct connection methods for RS-485 networks, including twisted pair wiring and recommendations for proper installation of termination resistors. It lists the receiver waveforms under correct and incorrect termination. This application note provides a basic guide for connecting RS-485 networks. The RS-485 specification (officially known as TIA/EIA-485-A) does not specifically dictate … Read more
Follow+Star Public Account, don’t miss out on exciting content Source | Semiconductor Industry Observation Although both standards have long been used for serial communication, RS-485 offers valuable features that RS-232 does not. Learn more in this article. Any form of communication requires rules to help ensure everyone stays consistent. In the electronics field, these rules … Read more
The RS-485 bus is widely used in communication, industrial automation, and other fields. In practical applications, one often encounters the question of whether to add pull-up and pull-down resistors and what resistance values are appropriate. Below, we will conduct a detailed analysis of these issues. 1. Why are Pull-Up and Pull-Down Resistors Needed? According to … Read more
The RS-232 bus is the most widely used serial interface bus in PC and industrial communication. The RS-232 interface was originally defined by the American EIA (Electronic Industries Alliance) as a standard for communication between computers and terminal devices. Due to its simple interface and high reliability for short-distance communication, it is widely used in … Read more
Overview of RS232 The RS-232 interface complies with the serial data communication interface standard established by the Electronic Industries Alliance (EIA). The original designation is EIA-RS-232 (abbreviated as 232, RS232). It is widely used for connecting computer serial interface peripherals. This includes connection cables as well as mechanical, electrical, signal, and transmission processes. The RS-232-C … Read more