[align=left][color=rgb(25, 25, 25)][font="]Corresponding to MCU, ROMan">WiFi or USB HUB generally requires an external clock signal, and an external crystal oscillator is required. Customers often ask...
I asked several friends: What is your ideal? What is your career orientation? Although these are a bit broad and a bit empty, after thinking about them for a few days, although I haven't figured them ...
Author: Yu Mengmeng, China Securities Journal
On April 24, a discussion about an interviewer at Bilibili (Bilibili for short) belittling the campus recruits of Beijing University of Posts and Teleco...
The original video stream captured by CCD is usually YUV 4:2:2, but the encoding usually supports 4:2:0 video source, so format conversion is required. This document is based on the specific implement...
When I was reading the SPI flash W25Q128, I found that the speed was very slow. After testing, it only reached 300KB/S, which was far from the requirement. So I wondered if I could use DMA to read it ...
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]
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]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
The TPS92210 is a single-stage LED lighting pulse width modulation (PWM) controller. The TRIAC dimmable solution not only regulates the LED current, but also achieves a power factor close to 1. The...[Details]
At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[Details]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[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]
Against the backdrop of global warming, energy conservation and emission reduction have become a global hotspot and focus, which has also sounded the clarion call for the take-off of the LED lighti...[Details]
Car lights, whether headlights, fog lights or tail lights, play an important role in driving safety. However, the material of the car lights determines that the probability of damage in a collision...[Details]
In order to prevent the lithium battery from being damaged by abnormal conditions such as overcharge, over discharge, and overcurrent, a lithium battery protection device is usually used to prevent...[Details]
1 Introduction
Washing machines are an indispensable household appliance in the home, and they are developing very fast. Fully automatic washing machines are favored by everyone because of their con...[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]
In recent years, network technology has developed rapidly, especially the rapid development of peer-to-peer networks, which has become one of the focuses of the industry. Related applications based on...[Details]
The coking workshop of Tianjin No. 2 Gas Plant is the core of the whole plant's production and an important source of economic and social benefits. Its production automation level and management an...[Details]
Power technology
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