1. Preview of Teaching Resources Just finished the eighth-grade lesson “Various Data Transmission Methods,” and the attending teachers said it was amazing! Here are a few design highlights that instantly made the class legendary. Teachers, feel free to borrow these ideas! 👇 2. Teaching Highlights /Information Technology Highlight One ✅ Highlight 1:Detective-style Teaching, High Energy … Read more
1. Basics of SPI Protocol SPI (Serial Peripheral Interface) is a high-speed, full-duplex synchronous serial communication protocol with the following core features: Four-wire Communication: MOSI (Master Out Slave In): Master output, slave input MISO (Master In Slave Out): Master input, slave output SCLK: Serial clock generated by the master CS/SS: Chip select signal (active low) … Read more
Click the blue text Follow us UART (Universal Asynchronous Receiver/Transmitter) The full name of UART is Universal Asynchronous Receiver/Transmitter. UART is an asynchronous transceiver, a key module for asynchronous communication between devices. It handles the serial/parallel and parallel/serial conversion between the data bus and the serial port, and specifies the frame format. As long as … Read more
1. Encoders: The “ruler” for precise position and speed measurement “ 1.1 Working Principles and Classification of Encoders Encoders are key sensors used in industrial automation for measuring position, angle, and speed, widely applied in scenarios requiring precise motion control. Their core working principle is to convert mechanical motion into electrical signals, providing feedback information … Read more
RS485 is Not a Language, But a ‘Highway’ Let’s use a vivid analogy to understand: RS485: It is like building atwo-way, two-lane highway. It specifies how wide this road is (transmission distance, up to 1200 meters), how many vehicles can run simultaneously (load capacity, up to 128 devices), and the basic rules for vehicle operation … Read more
Embedded devices need to set parameters during operation, and this task is often implemented by a PC. A communication protocol must be designed for both parties, with three representative protocols as follows: From the table above, it can be seen that the memory and computational performance of general embedded devices are limited, so fixed binary … Read more
Current Research Status of Wireless Sensors at Home and Abroad The development of wireless sensor networks can be traced back to traditional wireless sensor systems in the 1970s. The “Tropical Tree” sensor developed by the U.S. military at that time was an early wireless sensor system characterized by sensor nodes that could only collect data, … Read more
WeChat SearchTechnical Training RS485 is one of the most common buses, and almost every industrial control device uses it, which we are quite familiar with. We all know that RS485 is a half-duplex communication, and its internal source in the CPU is serial communication. Serial communication distinguishes between transmission TX and reception RX. If TX … Read more
(Click the above brown words to download the materials) Consider a DC power supply with three pins at its output socket: positive, negative, and ground. Accordingly, the load’s plug should also have three pins corresponding to the power supply side to correctly obtain the energy supply. Note that there are three essential conditions to be … Read more
PLC Technology Application Institute, helps you quickly grow into a qualified automation engineer. RS232 and RS485 are common interfaces in low-voltage electronics. Many friends have mentioned the differences between them, so today we will explore them together. 1. Physical Structure of Interfaces 1. RS232 Interface: One of the computer communication interfaces, the RS-232 interface usually … Read more