USB HID communication requires analog plugging and unplugging. How many MS are required to set the D+ signal line to 0 level? Is there any specific time requirement?...
Looking to buy second-hand development boards for USB2.0 chips such as ISP1581/ISP1583. Just a circuit board with the pins of the chip connected will do. If anyone has one, please add QQ: 332820439....
[align=left]Reposted from: deyisupport[/align] [align=left]Author: George10687[/align][align=left]I still remember the first time I saw a PMBus demonstration. About 8 years ago, I was on a business tr...
What will happen if I call up(&sem) twice on the same semaphore? As the title says, I started with a down(&sem); and due to an error during the release, I called up(&sem); twice. What will happen?...
The pictures are the back, the camera part, and the two sides of the PCB board. The text on the back is written before and will not be modified. WIFI doorbell (tentative name) Origin: Shenzhen? Functi...
STM32F1 is positioned as a single-chip microcomputer, but is STM32F4 still positioned as a single-chip microcomputer? ? With so many powerful functional modules, it is only lacking in MMU (memory mana...
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]
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[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]
Aromatic gases are widely present in food, medicine, cosmetics and various daily chemical products, such as snacks, liquor, spices, Chinese herbal medicines, plasters, perfumes, soaps, shampoos, et...[Details]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
Abstract: Aiming at the needs of coal-rock acoustic emission signal monitoring system, a data acquisition circuit with 24-bit resolution and 16-channel synchronous data acquisition function is desi...[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]
Introduction
Nowadays, people pay more and more attention to the security alarm system, and people have higher and higher requirements for the functions and performance of the alarm. This paper prop...[Details]
Introduction
As the country increases its efforts to control the atmospheric environment, motorcycle emission regulations will become stricter year by year, and motorcycles that do not meet the...[Details]
1. Proposal of
reconfigurable
measurement and control system
The measurement and control system generally refers to a system based on
computers
to realize data acquisition a...[Details]
Temperature compensated quartz crystal oscillator (TCXO) is widely used as a high-precision frequency source in communication systems, radar navigation systems, precision measurement and control sy...[Details]
A stepper motor is an electromagnetic mechanical device that converts an electrical pulse signal into an angular displacement or a linear displacement. The stability and reliability of a stepper mo...[Details]
1 Embedded Systems
Embedded System refers to a collection of computer hardware and software with specific functions or purposes, which is divided into embedded software system and embe...[Details]
MCU
京公网安备 11010802033920号
EEWORLD
