Fundamentals of RS232, RS422, and RS485 Serial Communication Protocols

Fundamentals of RS232, RS422, and RS485 Serial Communication Protocols

[Disclaimer] The images and text are sourced from the internet. If there is an infringement, please contact us for removal! Serial communication is a commonly used communication method in PLC networks. Choosing the correct interface type and protocol standard is crucial for ensuring communication reliability. The RS-232 interface complies with the serial data communication interface … Read more

Understanding TTL, CMOS, and RS232 Communication Levels

Understanding TTL, CMOS, and RS232 Communication Levels

The Concept of Levels: What are voltage, current, and power? Radio enthusiasts are well aware of these. However, when it comes to the term “level”, few can explain it clearly. Although people frequently encounter high levels, low levels, level gain, and level attenuation in circuits, and even multimeters essential for electricians have methods for measuring … Read more

Differences Between RS232, RS422, and RS485 and Considerations for RS485 Communication Cables

Differences Between RS232, RS422, and RS485 and Considerations for RS485 Communication Cables

1. 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 identification number, and C indicates the revision number. The RS-232-C bus standard has 25 signal lines, including one main channel and one auxiliary channel. In most … Read more

Transmission Distances of TTL, RS232, and RS485

Transmission Distances of TTL, RS232, and RS485

A few days ago, I saw discussions in my technical group about the topic of “TTL, RS232, and RS485 transmission distances“. Today, I took some time to share relevant content. Overview Many readers might not know what TTL, RS232, and RS485 are, so this section provides a brief overview of them. 1. TTL Level TTL: … Read more

Classic Bluetooth vs. Bluetooth Low Energy in Hearing Aids

Classic Bluetooth vs. Bluetooth Low Energy in Hearing Aids

Author: Li Aizhu, Manager of Natural Sound Guangxi Region If you have hearing problems or questions about hearing aids, you can consult Teacher Li Aizhu via WeChat. Long press the WeChat QR code to identify and get one-on-one hearing health consultation. Content: The Bluetooth technology in hearing aids allows them to function like Bluetooth headphones … Read more

Summary of English Part of Speech Conversion

Summary of English Part of Speech Conversion

Convert Verbs to Nouns 1. Ends with V+ment achieve —— achievement advertise —— advertisement agree —— agreement amuse——amusement commit —— commitment develop —— development disagree —— disagreement equip —— equipment govern —— government manage——management argue —— argument 2. Ends with V+ion attract —— attraction discuss —— discussion express —— expression instruct —— instruction invent—— invention … Read more

How Phonak Hearing Aids Connect to Apple, Android, and Other Devices

How Phonak Hearing Aids Connect to Apple, Android, and Other Devices

In this rapidly developing technological era, wireless connections are changing every aspect of life. Hearing aids are no exception; they are no longer merely complex signal processors that amplify speech but have gradually evolved into personal communication devices that connect to streaming media. What wireless technologies do Phonak hearing aids apply? How do they achieve … Read more

In-Depth Analysis of Android BLE Bluetooth

In-Depth Analysis of Android BLE Bluetooth

Today’s Technology News Recently, the Copyright Management Department of the National Copyright Administration held talks with more than twenty domestic and foreign music companies including Universal Music, Warner Music, and Sony Music regarding issues related to online music copyrights. The head of the Copyright Management Department emphasized that they hope all music companies will comply … Read more

Common Professional English Terms for PLCs (With Translations)

Common Professional English Terms for PLCs (With Translations)

Search on WeChat Technical Training In PLC programming, we often encounter some specialized English terms, which can be very difficult for beginners to understand. This article summarizes some commonly used professional English terms for PLCs and provides translations. 01 Words starting with ‘a’ absolute absolute position Absolute output absolute maximum output actuator actuator against comparison … Read more

Antenna Design and RF Layout Guide

Antenna Design and RF Layout Guide

Source: https://www.cypress.com/ Translated and organized by RF Academy, for learning purposes only. Hello everyone, this is 【RF Academy】. Today we will learn together about Cypress’s “Antenna Design and RF Layout Guide.” If you need the original document, please leave a message at the end. This guide explains antenna design in simple terms and provides guidelines … Read more