**1. Topic** How to dynamically open the log of the Bluetooth kernel **2. Problem background** Product: Tina product such as scanning pen Hardware: V853 + XR829 Software: Tina linux4.9 The purpose is ...
The circuit diagram of this part is as shown in the figure. The signal generator PULSE generates a +4V square wave signal, and the driver IC1 converts it into a +18V square wave signal and outputs it ...
Part 1: Basic design principles for basic power supply and groundNoise on ground and power linesThe ideal ground resistance is zero, but in reality the ground always has a certain impedance. Especiall...
I would like to ask: In a low-power battery-powered product, in addition to shutting down the internal module functions and clocks when not needed, how should the ADS/DIR/open-drain/pull-up/pull-down/...
Author: Aki LiDuring the project development process, developers want to encapsulate some core codes for the purpose of protecting core algorithms, so that other users cannot view the specific code im...
This paper uses supercapacitors for rectification and filtering, and designs and implements them. Tests show that supercapacitors can be used for rectification and filtering at the output end of a po...[Details]
Lenovo has been warming up for the Savior Y90 gaming phone recently. Lenovo has also released the internal cooling of the Y90 phone. The phone uses a dual-fan + dual-radiator fin design, which...[Details]
Google announced a new smartwatch, the Pixel Watch, at its I/O event. Its rounded and refined appearance has attracted many people's love. Unfortunately, Google did not reveal the specifications of...[Details]
1. Introduction
Light-emitting diode (LED) display screens have the advantages of high brightness, clear images, bright colors, low driving voltage, low power consumption, vibration resistance...[Details]
1. The basis of streaming transmission
There are currently two main solutions for transmitting multimedia information such as audio/video on the Internet: downloading and streaming transm...[Details]
The displayed average noise level (DANL) sensitivity of a spectrum analyzer is -172dBm/Hz, which is only 2dB away from the theoretical thermal noise limit of -174dBm. What kind of black technology do...[Details]
Nowadays, more and more industries are endowed with technological attributes, and smart door locks are also ushering in a period of brand explosion. Smart locks have a potential market worth hundre...[Details]
The fourth Intel Master Challenge (IMC) kicked off the second regional competition of the year. The second station of this competition came to Shanghai and the East District of Shanghai. The players ...[Details]
Network Analyzer User Manual 1. Purpose This instruction manual is to standardize the operation of the vector network analyzer to avoid damage to the instrument caused by improper operation; it...[Details]
Recently, the person in charge of Hello Travel said in an interview with the media that Hello Electric Bicycles have already paid back their investment and made a profit. In the absence of new vehicl...[Details]
Joengdong Choe, senior technical researcher at TechInsights, recently gave two presentations at the 2020 Flash Memory Summit, detailing the future of 3D NAND and other emerging memories. Choe's pre...[Details]
On September 11, Apple held a press conference and brought many new products, including the brand new 5th generation Apple Watch. According to reports, Apple Watch 5 has four major features: 1. It ...[Details]
Universal Serial Bus (USB) is a new type of data communication interface that is being used in more and more fields. Compared with traditional PCI cards and ISA cards , data acquisition cards based...[Details]
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