I simulated my own hardware device into a HID device, and then failed to communicate with it through IOCTL_HID_SET_FEATURE and IOCTL_HID_GET_FEATURE at the kernel layer, and the return error value was...
[color=#444444]The IEC International Electrotechnical Commission's 6118 standard recognizes the need for different goals for solder fillet or pad protrusion conditions. This new international standard...
More than 50 touch screens! How can we achieve that one server sends different data to the touch screen, and the touch screen sends different data to one server? Or, touch screen + single chip microco...
All along, the items I received from the forum were delivered by Zhongtong Express. I also always thought that the forum also chose Zhongtong Express for delivery. But when I talked to Soso yesterday,...
[font=宋体][size=6]I. First Look at Rapid IoT Prototype Kit[/size][/font] [font=宋体][size=5]Look at the exterior and interior, small and exquisite[/size][/font][font=宋体][size=5]After booting up, you can ...
It will be delivered to key customers for testing and will be put into mass production in 2010.The Chinese version of the news can be found on the 13th floor.ST Unveils World's First ARM Cortex-M Seri...
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
Microcontrollers (MCUs), which are widely used in automotive electronics, are rapidly facing time and cost pressures. The main advantage of using MCUs has always been to create high-level system in...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[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]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[Details]
With the continuous improvement of the requirements of intelligent building security systems and the continuous improvement of people's safety awareness, indoor anti-theft has gradually attracted peop...[Details]
1. Introduction
With the gradual automation and modernization of industrial control systems, fieldbus control systems have received more and more attention and application. CAN bus is currentl...[Details]
Although it is relatively easy to check the stability of a simple amplifier at lower frequencies, it may be much more difficult to evaluate the stability of a more complex circuit. This artic...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
1 Introduction
The Third Steel Plant of Jigang Group is a key investment project of Jigang Group during the "15th Five-Year Plan". It has introduced first-class domestic and foreign advanced eq...[Details]
As a simple and practical input device, buttons have been used in various microcontroller application systems and are ubiquitous. However, the buttons used in different practical occasions are also...[Details]
LED technology has made rapid progress, and improvements in chip design and materials have promoted the development of brighter and more durable light sources, and the scope of light source applica...[Details]
Only a small number of LED manufacturers can produce high-quality LEDs. For applications that are only used for simple indication, low-quality LEDs are sufficient. However, high-quality LEDs must...[Details]
1. Introduction
With the increasing popularity of fully automatic washing machines, consumers have higher and higher requirements for their environmenta...[Details]
store
To prevent moisture, LEDs should be stored in a dry and ventilated environment with a storage temperature of -40°C to +100°C and a relative humidity below 85%.
The LED should be use...[Details]