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

RS-232-C Serial Port and Cable Usage Instructions

RS-232-C Serial Port and Cable Usage Instructions

The serial interface, abbreviated as serial port, is also known as the serial communication interface (usually referring to the COM interface). It is an expanded interface that uses serial communication. If classified by interface, there are several types including RS-232, RS-422, and RS-485, among which the RS-232 serial port is the most commonly used serial … Read more

Most Common Software in Embedded Engineering

Most Common Software in Embedded Engineering

To understand which software is commonly used in the electronics engineering field, we first need to look at some of the relevant technologies and industry applications. Electronics engineering, also known as “low voltage technology” or “information technology”, can be categorized roughly as shown in the figure. The applications of electronics engineering cover electric devices, as … Read more

Experience of Building a Programmable Computer

Experience of Building a Programmable Computer

Hello everyone, I am Tao Ge. Having been in contact with computers for many years, I often feel a sense of confusion. Today, let’s work together to build a computer to deepen our understanding and experience. It must be stated that computers can be complex or simple, but their structures and principles are fundamentally similar. … Read more

Conductive Glass (Indium Tin Oxide): The Unsung Hero of Touch Screens

Conductive Glass (Indium Tin Oxide): The Unsung Hero of Touch Screens

↑ Click Above to Learn More About “Vesuvius Cellulose” In recent years, touch screens have become increasingly common in electronic devices, appearing not only in smartphones and tablets but also in navigation systems, ATMs, and other equipment. Unlike traditional input methods such as keyboards and mice, touch screens allow users to perform various operations simply … Read more

How to Fix Unresponsive Touchscreen on Your Phone

How to Fix Unresponsive Touchscreen on Your Phone

WeChat ID for Xingwen Fishing Gear (xwyuju) The two electronic products we use the most every day are probably our phones and computers. Today, I will share some solutions for when the phone touchscreen becomes unresponsive. Methods 1. Check for dirt or grease on the phone screen. These can easily cause intermittent issues with capacitive … Read more

Basic Knowledge of LCD Screen Repair

Basic Knowledge of LCD Screen Repair

Follow the association or click to read the original text to participate in the home appliance survey Cast your most precious vote 1. Types of LCD Screen Interfaces and Cables The LCD screen interfaces are divided into 60HZ, 120HZ, and even higher frequencies like 200HZ and 240HZ. Different frequency driver boards are required, with main … Read more

Differences Between MCU-LCD and RGB-LCD Screens

Differences Between MCU-LCD and RGB-LCD Screens

There are many types of LCD screens commonly used, with various interfaces. For example, some are directly driven by the processor, while others are modules with built-in driver ICs. I previously shared about the differences between 8080 and 6800 interfaces in LCDs. Now, let’s briefly summarize the differences between MCU screens and RGB screens, as … Read more

Variable Frequency High-Slope Filter Using Potentiometer or DAC

Variable Frequency High-Slope Filter Using Potentiometer or DAC

Click the above “Easy Learning Electronics” to easily learn electronic knowledge by following us. Easy Learning Electronics Subscription Daily updates on technical articles in the electronics industry and the latest information on microcontrollers for easy learning anytime, anywhere. Analog variable frequency filters require the use of variable passive components. The steeper the filter slope, the … Read more