The input is 3.3V TTL high and low level. The Darlington output should be the opposite level of TTL. I checked and it is always in the same state. What's going on?Also, the PMOS at the back end is alw...
BIPES is an open source project that integrates Google Blockly, WebREPL, MicroPython, documentation, an IOT platform for sending and viewing data, an enhanced web file manager using WebREPL and an onl...
Computer instructions are classified based on the length of the instruction set: RISC (Reduced Instruction Set Computing) and CISC (Complex Instruction Set Computer).Typically, 99.99% of the CPUs in m...
[i=s]This post was last edited by lb8820265 on 2020-9-26 13:25[/i]The previous article introduced the HID report descriptor and the corresponding routines in detail. In fact, it is not necessary for a...
On the afternoon of December 16, after the release of MediaTek Dimensity 9000, Redmi announced that the K50 series will be the first to be equipped with this chip, bringing a peak performance e...[Details]
On November 26, NavInfo released an announcement stating that recently, the tire pressure monitoring sensor chip independently designed by Hefei JieFa Technology Co., Ltd. (hereinafter referred to as...[Details]
According to Jiwei.com, some time ago, the US Patent Office announced a new technology from Apple involving an 8k concave display screen, which can set the display area to different resolutions. The ...[Details]
On August 17, Jinyun Laser issued an announcement stating that the company received a notice from the family of Mr. Liang Wei, the company's controlling shareholder and actual controller, on August 1...[Details]
Preface Due to the oil crisis and increasingly serious environmental pollution, the development of electric vehicles has become an irresistible trend. Batteries provide power for electric veh...[Details]
Last time when we were experiencing Marshall's active noise reduction headphones, we mentioned that this old rock brand has been using its own way to interact with technology in the new era. To...[Details]
Recently, the well-known domestic AI chip company Tanjing Technology released the second generation of the Sound Cyclone series, including three chips: VOI311 (light version), VOI621 (upgraded versio...[Details]
UPS
power supply
Schematic diagram
Backup
Online interactive
Online
UPS is mainly divided into two categories and three forms: one is backup ...[Details]
Recently, OPPO Guangdong Mobile Communications Co., Ltd. added a number of patent information, one of which is related to full-screen technology, named "A module, terminal device and fingerprint reco...[Details]
Introduction: This article is a text format of the program code for 12-bit AD_DS1621 and 12864 LCD. If you need the source file, click the link: http://www.eeskill.com/file/id/42247 to download the i...[Details]
The 21st century is an era of rapid development of human information technology. MEMS sensors, represented by accelerometers, gyroscopes, and pressure sensors, have begun to play an increasingly impo...[Details]
The main technical performance indicators that the switching power supply design should meet are: output/input voltage ratio (UO/UI), output power PO, converter efficiency η, output voltage ripple ...[Details]
You can use a multimeter to measure the voltage of the OSC_IN and OSC_OUT pins. If the crystal oscillator is starting, you can use the DC range to measure a voltage of about 2-3V. If the measur...[Details]
Audio Compression Technology Definition
The basis for compressing audio signals is audio compression technology.
Audio compression technology refers to the use of appropriate digital sign...[Details]
There are many versions of the "small three electrics" of new energy vehicles. However, the most recognized version is the "small three electrics" consisting of the on-board charger OBC, the on-boa...[Details]