Autor: iot-es (página 129)

The main processor first initializes the network and serial port devices. When data is transmitted from the Ethernet, the processor analyzes the data packets. If it is an ARP packet, the program is transferred to the ARP handler; if it…

With the development of GPRS technology in the field of wireless communications, GPRS modem has become more and more widely used as a PC terminal for GPRS on the Internet. Correspondingly, the use of GPRS modem in single-chip computer systems…

The data transmission module developed by Zongheng Intelligent Control has a variety of network type products, including 4G, GPRS, LoRa, Ethernet, etc. Data collection and transmission system based on wireless transmission module. The data collection terminal collects the temperature and…

Serial server concept In the Internet of Things, everyone must be familiar with the word serial port server. However, the concept of this product is explained clearly on the Internet. There are not many. I happened to see an article…

Serial networking server products provide solutions for accessing industrial equipment directly through the network. Traditional serial devices can thus be converted into Ethernet devices that can be monitored and controlled from a LAN or even the Internet. XUNWEI’s serial port…

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…

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;…

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…

Some readers have never been exposed to a microcontroller and have a vague concept of what a microcontroller is. In this issue, we have specially launched this introductory article to let you know what a microcontroller is like and what…

There are many forms of antennas. To facilitate discussion, the following introduction will classify antennas according to different situations. They are classified according to seven aspects: work nature, use, characteristics, current distribution, wave band, and appearance. Antenna classification 1. Classification…