[size=3]I got an LPC54114 audio and speech recognition kit by accident, and I want to share it with you. It has a dual-core controller, LPC-Link2 onboard, and a 1.5-inch OLED. It's a very good board. ...
I am using TM4C1294 now. It has three indicator lights by default. LED0 is LINK OK and LED1 is TXRX activity indicator. Now I have the following problem: When I am sending data out with the board, I s...
[i=s]This post was last edited by paulhyde on 2014-9-15 08:56[/i] [url=https://bbs.eeworld.com.cn/attachment.php?aid=23350&k=31d7b46967c7750eab8dd29f565276d6&t=1250037553][color=#000000]07 Electronic ...
The program is like this: a view list shows all the files in the CF card, and the mouse focus can be placed on the file. But now I want to make a selection function, that is, when the mouse clicks on ...
USB ISP download line production of single chip microcomputer [img]http://www.51hei.com/UpFiles/Pic/2008-09/2008925475232360.jpg[/img] [img]http://www.51hei.com/UpFiles/Pic/2008-09/2008927956370016.jp...
Microwave filters are classified according to their transmission line types, and the performance indicators and design methods of various microwave filters are introduced in detail according to this c...
introduction
my country has a vast territory and a large population. The scale of housing construction is huge, and the amount of residential construction is large and wide. It is still on t...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[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]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]
0 Introduction
Under normal circumstances, the three-phase power in the power system is symmetrical, and they meet certain amplitude and phase conditions; but when the load changes, the syst...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
Distributed Wireless Communication System (DWCS) uses distributed antennas, distributed processing control, joint signal processing and other technologies to improve the system's spectrum efficie...[Details]
For battery-powered portable devices, in addition to breaking through the limitations of processing power, the performance of portable system power supplies also needs to be continuously improved. ...[Details]
introduction
Temperature and humidity are the main environmental parameters of industrial and agricultural production. It is of great significance to measure them accurately and timely. Using a s...[Details]
(1) Open circuit voltage of the battery
(2) Internal resistance of the battery
(3) Battery operating voltage
(4) Charging voltage
Charging voltage refers to the voltage applied ...[Details]
1 Introduction
With the rapid development of my country's economy, the country has introduced a series of policies such as preferential policies, subsidy policies, and old-for-new policies, wh...[Details]
As the automobile consumer market heats up, the safety performance of automobiles has attracted more attention from consumers. When driving at high speed, tire failure is the most worrying and diff...[Details]
Introduction
The LED market has seen tremendous growth over the past few years. Advances in thermal dissipation, packaging, and processing have resulted in higher brightness, higher efficien...[Details]
Introduction
Every year, cars are equipped with more complex electronic systems to maximize comfort, safety, and performance while minimizing harmful emissions. According to market resea...[Details]