Explanation of serial communication and parallel communication Serial communication: data bits are sent one data bit after another, and the data bits represent 0 or 1 Parallel communication: sending 8 data bits at a time, which is one byte, Comparison between serial communication and parallel

For a long time, serial communication methods have been widely used in many fields such as data collection, data monitoring, security, and medical care. However, with the development of the Internet and the improvement of application requirements, its limitations have become increasingly prominent : short

ASCII: American Standard Code for Information Interchange American Standard Code for Information Interchange: A computer coding system based on the letter J; Mainly used to display modern English and other Western European languages; The most common single-byte encoding system today; The ASCI I code is

The design of this router is based on three modules, namely 3G module, WiFi module and Linux hardware platform, as shown in Figure 1. The function of the 3G module is to use the operator’s wireless data card for PPP dial-up, so that the router

Synchronous serial communication: During synchronous communication, direct control of the sender’s clock to the receiver’s clock must be established so that both parties can achieve complete synchronization; Characteristics of asynchronous communication: It does not require strict consistency of the clocks of both the sending and

Broadly speaking, M2M can represent the connection and communication between Machine to Machine (MachineMachine), Man to Machine (Man to Machine). Machine to Man (Machine 1o Man). Mobile↓Machine! It provides the technical means for mutual communication between people , machines and systems. M2M application systems include

The wireless communication module industry structure is increasingly differentiated and the strong will always be strong. At present, the wireless communication module market is in the early stages of development, with many brands and low market concentration. In the long run, customers will become more

According to data from the Ministry of Industry and Information Technology, the scale of my country’s Internet of Things industry is planned to reach 1.5 trillion yuan in 2020, and the value of related chips, modules, and terminals will account for 30%, corresponding to 450

Due to the need to use the public network to achieve wireless meter reading, a DTU module based on 4G network was designed and developed to implement the application of the DTU module in the meter reading system. This article introduces the technical requirements of

The GPRS remote wireless measurement and control method solves many problems such as high line laying costs and inconvenient large-area agricultural possibility management, and technically provides the realization of precision agriculture. There are currently relatively few mature applications for water- and fertilizer-saving precision agricultural control

Based on the research on Lora communication, the Lora communication data terminal and its data processing method based on circular queue buffering are designed. The data terminal uses the circular queue to buffer the received data, and checks, judges and optimizes the data frames one

As a bridge connecting the industrial Internet of Things central control system and remote devices, the serial port server plays a self-evident role in the entire communication link. Today, the author will use industrial control solutions as a foothold to analyze the mystery of this