Click the blue text Follow us 1. Principle The SPI (Serial Peripheral Interface) protocol is a high-speed, efficient, full-duplex communication bus that allows the CPU to perform synchronous serial data transmission with low-speed peripheral devices. It mainly uses a synchronous clock signal to simultaneously send and receive serial data, thus achieving full-duplex communication. It is … Read more
1. Introduction to I2C Reference Source https://blog.csdn.net/Teminator_/article/details/141224886 1.1 Overview of I2C Bus (1) The IIC protocol (Inter-Integrated Circuit, abbreviated as I2C) is a serial communication protocol used for communication and data exchange between various electronic devices. It was first proposed and promoted by Philips in 1982 as a simple, efficient, and low-cost communication protocol. (2) … Read more
Click the blue text to follow us The I2C (Inter-Integrated Circuit) bus is a two-wire serial expansion bus introduced by Philips for connecting IC devices. Devices connected to the I2C bus can transmit data via the Serial Data Line (SDA) and Serial Clock Line (SCL). I2C Bus Structure Both SCL and SDA of the I2C … Read more
I am Lao Wen, an embedded engineer who loves learning.Follow me to become even better together! In communication design, considering the flexibility of protocols, they are often designed to be “variable length”. An example is shown in the figure below: the communication protocol frame of the Ruimi LoRa terminal. If a system receives the above … Read more
Why I²C is one of the most commonly used communication protocols in embedded systems?1. Background and Importance of I²C Communication The I²C (Inter-Integrated Circuit) communication protocol was developed in the 1980s by Philips (now NXP Semiconductors) to simplify communication between various integrated circuits within electronic devices. It is particularly suitable for scenarios requiring low-speed interconnection … Read more
This article aims to provide you with an intuitive understanding of Modbus, summarizing knowledge related to Modbus, making it very suitable for beginners. If there are any errors, suggestions and corrections are welcome. What is a Protocol Before understanding what Modbus is, let’s first look at what a protocol is. A protocol is a Chinese … Read more
Click the public account below ⬇ to get more technical sharing and updates In the Modbus TCP communication protocol, the Master and Slave are two fundamental roles in communication, each with distinct responsibilities. 🔹 Concept of Master Active initiator of communication: In the Modbus protocol, the Master is the only party that actively initiates requests. … Read more
With the development of the Internet of Things (IoT) and mobile development technologies, mobile applications have become a key method for monitoring and controlling Industrial Internet of Things (IIoT) devices. However, the communication quality between mobile devices and IoT devices in industrial scenarios faces challenges: traditional wireless technologies struggle to balance power consumption, coverage, and … Read more
CAN Communication: The Unsung Hero of Enhanced Device Collaboration Efficiency 1. The Importance of CAN Communication CAN (Controller Area Network) is a communication protocol widely used in automotive, industrial automation, and other high-performance systems. Originally developed by Bosch in the 1980s for the automotive industry, it quickly became the backbone of modern vehicle communication systems. … Read more
Description: This article explains the application of MODBUS. Currently, the communication protocol between industrial control upper and lower machines predominantly uses MODBUS, highlighting the importance of machine-to-machine communication. 1. MODBUS System Framework Diagram 2. Application of MODBUS The underlying communication of MODBUS uses RS485 signals connected via twisted pairs, allowing for long transmission distances of … Read more