I use the following method to control the ultrasonic generator to send ultrasonic waves
On the left are two complementary outputs, a 50% duty cycle, and a 40KHz square wave frequency.
In the middle is...
I would like to ask the moderator, for the helper2416 development board, the driver fails to create a device node by calling class_create. Is it because the root file system does not support the udev ...
【Chuanglong TL570x-EVM 】Review 01 - UnboxingPhysical appearanceThis industrial control board of Chuanglong is of high quality, and is designed and manufactured with great care. It has good stability a...
Power Factor CorrectionPower factor correction (PFC) is mainly used to improve the ratio of effective power to apparent power at the input of the power supply. It is one of the common circuits in swit...
[size=4] Ultra-low standby power consumption of less than 90mW without auxiliary AC/DC power supply reference design. The PMP21251 reference design uses the UCC28056 CRM/DCM PFC controller, UCC256304 ...
# 3D printer project - STM32F7508-DK environment creation (I) I found out from the Internet that smoothieware.org launched a FreeRTOS system V2. I have always wanted to try it out. It happened that [*...
According to Korean media Joongang, Samsung is developing a new generation of flagship Exynos chips, which are expected to use second-generation 3nm GAA wafer technology or be installed on the Galaxy...[Details]
A new design scheme of intelligent high-power Light Emitting Diode (LED) street lamp photovoltaic charger is proposed. The working characteristics of white light LED and solar cell as well as the m...[Details]
Introduction
As the "second eye" of doctors, endoscopes are widely used in different departments and for the treatment of different diseases, and play a vital role in...[Details]
Based on the special environment of offshore oil spill recovery, this paper designs an offshore liquid level measurement system based on AT89S51 single-chip microcomputer. The system adopts the pri...[Details]
The connection between cars and vacuum is much closer than you think
my country's production and sales of new energy vehicles exceeded 3 million for the first time in 2021, ranking f...[Details]
Less than two weeks after launching end-to-end bookmark encryption for Safari, Apple is abandoning the extra protection. In early October 2021, Apple's support document was updated to show that Saf...[Details]
1. Basic knowledge of DS18B20
The DS18B20 digital thermometer is a 1-Wire device produced by DALLAS, which has the characteristics of simple circuit and small size. Therefore, it is used to form a...[Details]
The supply of polarizing plates for displays is expected to remain tight this year, as the production of polarizing plates has decreased due to the COVID-19 pandemic, while the demand for polarizing ...[Details]
Nordic to showcase Cellular IoT, Wi-Fi, nRF cloud location services, Matter, DECT NR+ and LE AUDIO solutions at Asia's most important connectivity technology event Oslo, Norway – June 20, 2023 – No...[Details]
According to the latest issue of Nature Nanotechnology magazine, researchers at the Massachusetts Institute of Technology have developed a new type of magnetoelectric nanodisc that provides a new m...[Details]
Similar to planning a trip based on weather forecasts, the new Ford F-150 and Mustang Mach-E models will be able to adjust their trips based on traffic forecasts, thanks to an innovation from locatio...[Details]
Intel CEO Pat Gelsinger still hopes to win back Apple as a customer, but believes that to do so, Intel's chips must be better than Apple's self-developed chips. In an interview with Axios, a US new...[Details]
Let's first look at the implementation of Yangchuang's bootloader: First: Initialize the stack, interrupt vector table, MMU, clock, serial port, etc. in assembly, and then jump to the Main function...[Details]
According to foreign media reports, Ford Motor has obtained a patent for a brightness management system, which may be used in future Ford vehicles. The patent was submitted on October 18, 2023, pub...[Details]