Search WeChat Technical Training 01 Network Cable Let’s briefly discuss network cables. Most people are familiar with network cables, and different specifications of cables have different transmission distances. Network cables transmit network signals, and if the distance exceeds the cable’s capacity, the signal will degrade, leading to potential network interruptions. Category 5 and Category 6 … Read more
Follow “Technical Training” focused on automation education for 14 years UART, I2C, RS485… These communication methods are widely used, but their explanations can be ambiguous. Therefore, I feel it is necessary to organize them for clarification and differentiation. The article is a bit long, so I suggest saving it for later reference when needed. UART … Read more
Problem: I used a USB to TTL board to program the STC89C52RC microcontroller. I connected the board’s RX to the microcontroller’s TX (P3.1), the board’s TX to the microcontroller’s RX (P3.0), and GND to GND. After making the connections, I couldn’t download the program, and I kept receiving the prompt “Please power on the MCU.” … Read more
Click the blue text to follow us Linux System – Download and Installation Tutorial Linux is an open-source operating system that is widely used across different platforms. Below are the general steps for downloading and installing the Linux system. Select a distribution: Before downloading Linux, you need to choose a distribution that suits your needs. … Read more
Search WeChat Technical Training The Weilan touch screen supports downloading screens via serial port, network port, and USB. The method for downloading via the network port has been shared earlier, and the network port is the most commonly used. In case of emergencies where the network or serial port cannot be used, the USB function … Read more
In the field of testing and measurement, the development of instrument bus technology has always been a major concern for engineers and scientists. From the GPIB bus introduced in the 1960s specifically for instrument control, to the widely used USB, VXI, PXI, and the latest LXI and PXI Express, the emergence of new bus technologies … Read more
With the development of technology, RS232 serial communication is still widely used in industry. However, in commercial applications, the USB to UART technology has gradually replaced RS232 serial ports. Most laptops no longer have serial ports. So, how can we achieve communication between a microcontroller and a computer? We only need to add a USB … Read more
Serial ports (UART) are a very commonly used interface in embedded systems, but most modern computers lack hardware serial ports. Generally, serial ports are expanded through methods like USB to serial or PCIe bus expansion. USB to serial is a very common solution. Common USB to serial chips include CH340/341, CP2102, and PL2302. However, these … Read more
Source: Official Account — — — Technical Courtyard Introduction: Spreading knowledge and broadening horizons. A technical repository. See the world with a unique perspective, interesting and informative. 【Guide】 Engineers often use a set of lines, configured with appropriate interface circuits, to connect various components and peripheral devices, referred to as a bus, to simplify hardware … Read more
Electronic products, such as computers, mice, chargers, and even cars, have many interfaces around us. This article will introduce you to these interfaces, what they look like, where they are used, how to use them, and their principles. This article serves as a simple description for beginners. 1. Serial Port 2. UART 3. TTL Level … Read more