1.1 Project Overview The TV monitoring system for office area is mainly designed for the office environment of companies, factories, mines and enterprises involving confidential information. Its purpo...
[i=s]This post was last edited by Jixia Mujin on 2014-7-31 18:24[/i] Today is the end of July. It has been more than 20 days since I decided to start. I played around for many days and didn’t start. I...
Development is never smooth sailing. Recently, I was stuck in the original instrument setting communication software and hardware protocol. Fortunately, the prototype board was made (a complaint is th...
7905onsemi and Avnet IoT Innovation Design Competition
Recently, there has been a problem that the videos embedded in posts by netizens cannot be displayed normally. The reason is that the link selected by the netizens is wrong. Since the videos recorded ...
The definition of sensor in national standard GB7665-87 is: "a device or apparatus that can sense the specified measured quantity and convert it into a usable signal according to a certain rule, usual...
The information received by the nRF905 microcontroller is transmitted to the PC through the R232 interface for display and sent to a remote monitoring center. The graduation thesis process is roughly ...
Sailing is gaining more and more attention. How to use modern technology to assist training and improve competition results is particularly important. Considering the real-time data collection in t...[Details]
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[Details]
The data collector of the automatic weather station is generally designed based on a single-chip microcomputer or a PC/104 bus controller. It has the characteristics of good compatibility with PC, low...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]
introduction
At present, measuring instruments are developing towards networking, and each individual embedded instrument will become a node on the Internet. This system realizes the network...[Details]
In the "digital pressure measurement" experimental device of applied physics, the subject technical knowledge of analog circuits, digital circuits, sensors and single-chip microcomputers is used. In o...[Details]
The above is to use MB1404 as a stereo composite signal transmitter. You can use the internal high-frequency amplifier and oscillator or not! According to my experience, I still recommend beginners...[Details]
Cars equipped with xenon headlights are already common on the road. Whether they are standard equipment on high-end cars or embellishments on modified cars, xenon lamps are gradually becoming a sym...[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]
People who often surf the Internet until late at night, their families always complain that turning on the big lights in the living room affects their rest, but some people don't have keyboard ligh...[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]
1. Tips for charging UPS for the first time
After purchasing a new UPS, plug the UPS into the 220V mains power grid and charge it for at least 12 hours to ensure that the battery is fully char...[Details]
Features
POE technology can ensure the safety of existing structured cabling while ensuring the normal operation of the existing network and minimizing costs. The IEEE 802.3af standard is ...[Details]
1 Introduction
CAN (Controller Area Network) bus is a kind of field bus. It is used in many industrial sectors due to its outstanding advantages such as high performance, high reliability, high...[Details]
RF/Wirelessly
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