[font=宋体] Use zigbee (CC2530) to build a star network, and each child node in the network can communicate with the STM32f103ZET6 microcontroller serial port. When the group node sends a command, the c...
The previous posts talked about how to use Bluetooth to transmit data. This post talks about how to receive data. First, we need to briefly talk about the structure of the Bluetooth protocol stack. Th...
The 2011 National College Student Competition test paper has been announced. If contestants have any questions about Question A of the competition, they can post them here !We look forward to the enth...
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[Details]
Every time I go home and walk up the stairs, I am always scared. The corridor lights are often broken, and no one changes the bulbs, or they are not smart enough and need to be operated manually. E...[Details]
Nowadays, more and more people have digital cameras. The convenience and speed of digital cameras have gradually replaced film cameras and become the main tool for people's daily photography. The n...[Details]
The capacity of a battery depends on the amount of charge and discharge, in addition to some factors of the battery itself. Obviously, if the charge and discharge of the battery can be recorded all...[Details]
As a new type of centralized and decentralized elevator control system, serial communication has been widely used in China. Compared with the previous centralized and unified control system, each s...[Details]
Some people think: as long as the program runs well, it doesn't matter how the original program is written. But this is absolutely not the case. Software is not completed in one go, and it is neces...[Details]
Reliability and real-time performance are the basic requirements for control systems. Initially, motor control used analog circuits with discrete components. With the advancement of electronic tech...[Details]
The total coal reserves of Inner Mongolia Autonomous Region in China have been found to exceed 700 billion tons, ranking first in the country. Its short-distance transportation mode is still mainly by...[Details]
System Introduction
The converter remote data transmission system must collect converter signals distributed in various workshops and send them to the central control room. Wuhan Iron and Stee...[Details]
UPS is an uninterruptible power supply (UPS). This device can ensure that after a power outage in the computer system, users can continue to work for a period of time and save files urgently, witho...[Details]
In the field of video surveillance, video compression encoding formats have evolved from M-JPEG, H.263, MPEG4 to H.264. Currently, H.264 is the mainstream compression algorithm. Its biggest advantage ...[Details]
High-voltage switches are important control equipment in power systems and play an important role in the safe operation of power grids. The resistance of the switch conductive loop is an important tec...[Details]
With the rapid development of wireless communication technology, electronic technology, sensor technology and micro-electric system, the research of wireless sensor network has attracted more and m...[Details]