Driven by the progress of science and technology and people's demand for mobile communication services, building access control intercom systems are being applied to various communities. At present, t...
[p=24, null, left][color=rgb(51, 51, 51)] According to the Trustdata mobile big data monitoring platform, as of the end of the second quarter of 2017, the top ten shared bicycles were: Mobike, ofo, Co...
The board runs Linux. When I was adjusting SPI, I encountered a problem that the time overhead of reading and writing peripheral registers was too high. static void transfer (int fd) { int ret; uint8_...
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 20:01[/i] "Mobile TV products are gradually becoming a hot spot in electronic consumption." At present, TCL has launched a mobile digita...
[align=left][color=rgb(85, 85, 85)][font="][size=4] Many Wi-Fi networks are built using 2.4 GHz technology, and with billions of Wi-Fi-enabled devices (a number that is exploding every year), wireless...
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 Introduction
The high temperature tester is mainly used for temperature tracking measurement and data acquisition during the heating process. By systematically analyzing the test data, the...[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]
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]
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]
In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
1. Introduction
Light control circuit plays a vital role in urban street lamps or corridor lighting. With light control circuit, the lights can be automatically turned on and off according to ...[Details]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
Today, with energy becoming increasingly scarce, the utilization of natural energy has become the focus of people's attention. Among various natural energies, the endless solar energy is highly fav...[Details]
Leakage current is generated by parasitic resistance paths between the measurement circuit and a nearby voltage source. This current can significantly reduce the accuracy of low current measurement...[Details]
1 Introduction
Automatic Test
System The ATS (Automatic Test System) integrates all the stimulus and measurement equipment required for testing.
The computer
efficiently comp...[Details]
introduction
The Steyr diesel engine produced by Weifang Diesel Engine Factory has huge power and is one of the main power models widely used in China's heavy machinery and large trucks. In ...[Details]
TPMS is the abbreviation of "Tire Pressure Monitoring System". It is mainly used to automatically monitor the tire pressure in real time when the car is driving, and to alarm for tire leakage and l...[Details]
Button cells (also called button cells) are those batteries with equal or larger diameter and height. The current size range of alkaline button cells is specified as follows: diameter 4.8mm-11.4mm,...[Details]
Introduction
Zero-IF receivers are not new; they have been in use for some time, with cellular handsets being a key application area. However, their use in high-performance receivers such as...[Details]