Understanding RS-232 Protocol and Interface

Understanding RS-232 Protocol and Interface

Table of Contents 1. Interface Types and Signal Definitions 2. Logic Levels 3. Communication Rates 4. Serial Communication Topology 5. Application Circuits ✍ Welcome to click here to join the hardware electronics group of San Pao Er. Hello everyone, I’m San Pao Er; today’s notes are about the RS-232 protocol/interface. The RS-232 serial data communication … Read more

Can USB Directly Replace RS-232 Serial Ports?

Can USB Directly Replace RS-232 Serial Ports?

What Is USB? USB is a universal serial bus interface standard used to connect computer systems and external devices for data transmission and power supply. Advantages: High-Speed Transmission: The USB interface provides high-speed data transfer rates, suitable for quickly transferring large volumes of data. Hot Swappable: USB devices can be plugged and unplugged while the … Read more

Detailed Explanation of Serial Ports, COM Ports, TTL, RS-232, and RS-485 Differences

Detailed Explanation of Serial Ports, COM Ports, TTL, RS-232, and RS-485 Differences

What are the differences between serial ports, COM ports, TTL, RS-232, and RS-485? We often encounter these in our projects, so let’s summarize them. 1. Serial ports and COM ports refer to the physical interface form (hardware). TTL, RS-232, and RS-485 refer to the level standards (electrical signals). 2. When connecting devices, generally only GND, … Read more

Detailed Explanation of RS-232, RS-485, RS-422, and RJ-45 Communication Interfaces

Detailed Explanation of RS-232, RS-485, RS-422, and RJ-45 Communication Interfaces

RS-232, RS-422, and RS-485 are all serial data interface standards. RS-232 is the most widely used serial interface for PC communication. RS-232 is defined as a single-ended standard that increases communication distance in low-speed serial communication. RS-232 uses an unbalanced transmission method, known as single-ended communication, while the RJ45 interface is typically used for data … Read more

Introduction to RS-232, RS-422, and RS-485

Introduction to RS-232, RS-422, and RS-485

RS-232 RS-232-C is a serial physical interface standard established by the Electronic Industry Association (EIA) in the United States. RS is the abbreviation for “Recommended Standard”, 232 is the identifier number, and C indicates the number of revisions. Its full name is “Serial Binary Data Exchange Interface Technology Standard between Data Terminal Equipment (DTE) and … Read more

Selecting TVS Diodes for RS-232, RS-485, and CAN Based on Rated Voltage

Selecting TVS Diodes for RS-232, RS-485, and CAN Based on Rated Voltage

**Introduction** In many industrial and automotive applications, protecting interface transceivers from various electrical overstress events is a major concern. Transient Voltage Suppressor (TVS) diodes are commonly used for this purpose as they clamp voltage spikes by creating a low impedance current path. The electrical characteristics of TVS diodes are determined by several process factors. These … Read more

Understanding the Features and Differences of RS-232, RS-422, and RS-485

Understanding the Features and Differences of RS-232, RS-422, and RS-485

Click the blue text to followServo and Motion Control Introduction to RS-232, RS-422, and RS-485 Overview of RS232 The RS-232 interface conforms to the interface standard for serial data communication established by the Electronic Industries Alliance (EIA), with the full original designation being EIA-RS-232 (abbreviated as 232 or RS232). It is widely used for connecting … Read more

Learning BLE from Scratch: Attributes and UUIDs

Learning BLE from Scratch: Attributes and UUIDs

Attributes play a crucial role in BLE, serving as a bridge between different components. Today, let’s learn about the concept of attributes. Attributes: The architecture of BLE is divided into servers and clients. The way BLE works is by storing data on the server, which the client can access. Data is stored in a format … Read more

Essential Ansible Basics Before the Interview

Essential Ansible Basics Before the Interview

First, let’s address the leftover issues from Jenkins. Below is the original pipeline code to add a non-image to the cluster as a deployment. pipeline { agent { kubernetes { inheritFrom 'default' namespace 'xiejiajia' serviceAccount 'jenkins-sa' // Use the newly created ServiceAccount } } environment { ACR_SERVER = 'registry.cn-hangzhou.aliyuncs.com' ACR_NAMESPACE = 'nginx-vmware' ACR_REPOSITORY = 'jenkins-test' … Read more