In the field of digital communications, modems and routers are two key devices that play different and important roles in the network. Although they are often mentioned together, their functions and effects are quite different. In this article, we’ll dive into the differences between modems and routers.
wireless module is an electronic device that integrates wireless communication functions and is used for wireless data transmission between devices. These modules usually contain a transmitter and receiver to enable two-way communication between devices via wireless signals.
RS485 is a serial communication standard that defines a way to communicate data between multiple points. This standard belongs to the EIA/TIA-485 standard and is jointly issued by the Electronic Industries Alliance (EIA) and the Telecommunications Industry Association (TIA). RS485 is commonly used in industrial control systems, automation equipment, instrumentation, building automation, and other applications that require long-distance, multi-point connections, and high immunity to interference.
The E28 series product launched by Chengdu Ebyte Electronic Technology Co., Ltd. is a transmission module with Lora spread spectrum technology designed for the 2.4GHz band. LoRa Direct Sequence Spread Spectrum technology will bring longer communication distance, and has the advantages of wider power spectrum and strong anti-interference ability.
The wireless serial port module is a module that communicates serial port data through wireless signals. Generally consists of a radio frequency chip and an MCU (some SOC chips have integrated these two parts together). The wireless serial port module has the characteristics of simple operation and is widely used in wireless data acquisition, wireless meter reading, robot control, access control systems, security systems and other fields.
LoRa is a physical layer technology that provides long-distance, low-power consumption, and low-rate wireless communication, while LoRaWAN is a communication protocol developed based on LoRa technology and is mainly used for low-speed wireless communication in the Internet of Things. Power wide area networking.
Understanding the operating mechanism of the LoRaWAN communication network, especially the relationship between LoRaWAN nodes and LoRaWAN gateways, is crucial to the successful deployment and optimization of IoT systems.
With the continuous development of industrial automation and Internet of Things technology, the Modbus protocol is becoming more and more popular as a communication protocol. Among many communication protocols, why is Modbus so popular?
As 2G and 3G networks decline, existing large-scale cellular IoT devices will likely use one of the following 4G LTE standards: LTE Cat.1, LTE-M, or NB-IoT. When making a choice, we need to understand the differences between LTE Cat.1, LTE-M, and NB-IoT.