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In our previous article, we explored how MQTT virtual serial port software is used as a TCP client in combination with a serial server. In this issue, we will delve into the configuration of the serial server and guide you through the process of integrating it with the Alibaba Cloud IoT model. This tutorial provides a step-by-step guide on how to set up the serial server.
The advent of 4G cellular networks marked a significant leap in wireless communication technology, bringing high-speed data transmission, lower latency, and enhanced connectivity to mobile users worldwide.
In today's product development landscape, quality and testing are inseparable core elements. As user demands continue to evolve and market competition intensifies, quality has become a crucial factor determining the survival of a business.
A network switch is a fundamental device in modern networking, enabling efficient data transmission between connected devices within a local area network (LAN). Understanding the process of connecting and configuring a switch is crucial for establishing a reliable and secure network.
The development of the manufacturing industry must closely follow market and technological changes. First, companies should focus on customer orientation, optimizing product design and functions through a deep understanding of customer needs in order to offer personalized solutions.
CAN filtering is a mechanism in Controller Area Networks (CAN) that controls which messages a node can receive.
In the communication industry, bandwidth typically refers to two concepts: one is frequency bandwidth, and the other is maximum transmission rate (bps). Narrowband transmission refers to a technology that limits the signal transmission to a relatively narrow frequency range during data transfer.
In data transmission, data collisions are a significant issue that must be addressed. This phenomenon can result in data loss, errors, or delays, ultimately affecting the normal operation of devices and the integrity of data.
NB-IoT can be deployed using existing cellular networks, eliminating the need for the construction of new infrastructure. This reduces deployment costs and makes it easier to integrate into the existing telecom ecosystem.
The primary objective of the eDRX (extended Discontinuous Reception) mode in NB-IoT is to support longer paging listen intervals, thereby achieving low power consumption. The existing 2.56-second paging interval is due to high power consumption at the UE (User Equipment). However, when downlink data transmission frequency is relatively low, through negotiation and coordination between the core network and the user terminal, the UE can adjust most of the paging monitoring intervals to achieve power savings.
In earlier implementations, the radio transmission power played a crucial role in extending the range of Bluetooth Low Energy (BLE) modules. After the introduction of Bluetooth modules based on Nordic solutions, users gained access to improved communication protocols.
With the continuous advancement of technology, the connection between the internet and various devices has become a focal point of attention. The Internet of Things (IoT) has been at the heart of this trend and is now widely applied across various industries. However, in addition to IoT, a new term has emerged—IOE (Internet of Everything).
The Modbus protocol has become a crucial bridge for connecting various devices and systems in industrial fields, owing to its strong technical foundation and widespread Application. This article provides a brief description of several key technologies and core elements in the Modbus protocol, including function codes, addressing, data models, and security considerations, offering readers a comprehensive and in-depth understanding.
Bluetooth Low Energy (BLE), launched in 2010, ushered in a new era of connectivity, particularly between smart devices and smartphones. BLE is a new wireless protocol that shares some functionalities with traditional Bluetooth.
Serial ports, also known as serial data interfaces, are communication interfaces for transmitting data in a serial manner, where data bits are transferred one after the other over a single channel.