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
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
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
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
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
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
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
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
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
Experiment Description In this experiment, we will study how to analyze the security of the OKLOK smart lock, as well as analyze the Android app, dynamic code debugging, and BLE analysis control, ultimately achieving remote control of the smart lock using our code. We will first interact with the smart lock using a BLE adapter … Read more