I have been tinkering with Android for a few days. Since I set up the simulation development platform under Android XP two days ago, I have been running some programs according to some manuals and wri...
It is said that some cities are going to become 5G pilot cities. China Mobile and China Telecom have also stated that they will deploy 5G in advance in some development zones. The mobile networks are ...
The OP's laptop is a thinkpad T510, which has been with me for a few years. The appearance has not changed much. If I just watch movies and read the news, there is no pressure at all. But the OP is a ...
[p=24, null, left][color=#000][font=Simsun][size=14px]Lithium-ion batteries are subject to the risk of internal short circuits due to many factors such as the material system and manufacturing process...
Thank you all for coming from all directions and climbing the Xianglu Peak, the main peak of Xiangshan Mountain, at an altitude of 575 meters under the scorching sun. You all are great. {:1_103:} You ...
There is such a circuit, which is used for automatic zeroing. First, the op amp input is grounded, and then the compensation voltage is sampled from the output (green); then the op amp input is connec...
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
0 Introduction
With the development of my country's economy, the number of motor vehicles continues to increase. The growth of existing roads and other hardware facilities can no longer meet t...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
The Portable Digital Data Acquisition System (PDDAS) uses LabVIEW Real-Time and PXI to control the wind tunnel test and record air pressure data from 128 different channels.
"The LabVIEW Real-...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
My colleague and I spent the day chatting in the hotel bar. We had met with several customers. We were both wondering how come these engineers we were meeting knew almost nothing about analog techn...[Details]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[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]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
In the analysis of electronic circuits, static analysis (also known as DC analysis) is the basis of circuit analysis. However, it is well known that electronic components are nonlinear, so the anal...[Details]
RS-422 and RS-485 are both serial data interface standards, which were developed and published by the Electronic Industries Association (EIA). RS-422 defines a balanced communication interface with a ...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]