这个是错误提示root@t-VirtualBox:~/libnfc-1.7.0# nfc-listdebuglibnfc.generallog_level is set to 3
debuglibnfc.generalallow_autoscan is set to true
debuglibnfc.generalallow_intrusive_scan is set to false
debug...
From: https://www.cnx-software.com/2021/11/28/toit-open-source-language-claims-to-be-30x-faster-than-micropython-on-esp32/Toit is a complete IoT platform developed by a team of former Google employees...
I need a camera now. Do you know any mature products? Please let me know. Thanks a lot! 1. Support wifi; 2. Wide angle, can take a picture of a 100cm*1300cm desktop at a height of about 40cm; 3. Can b...
[size=4](1) Developing an adaptive coding system using the auditory masking effect[/size] [size=4]The theoretical basis of AC-3 technology is also based on the auditory threshold and masking effect in...
[align=center][b][font=宋体][size=5]From the LED bulb priced at 2 yuan and 80 cents to the development direction of lighting enterprises[/size][/font][/b] [font=宋体][size=4]Anhui Yunlong Technology Devel...
Today's computer peripherals are pursuing high speed and high versatility. In order to meet user needs, seven companies led by Intel launched the USB (Universal Serial Bus) bus protocol in 1994, wh...[Details]
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
Abstract: In order to generate a stable excitation signal, the design of a digital frequency synthesizer is implemented on FPGA using Verilog hardware language. The design includes accumulator, wav...[Details]
The solidification and modularization of intelligent video analysis algorithms are the current trends in the application of intelligent video analysis technology. It perfectly combines intelligent ...[Details]
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[Details]
1 Introduction
In recent years, there have been many major advances in the production technology and processes of automotive headlights, which have greatly improved the performance of automoti...[Details]
In recent years, with the rapid development of the information industry, dot matrix LED display screens have been widely used in various advertising and information display systems such as the fina...[Details]
This controller uses PIC16C54 single-chip microcomputer as the controller, and it is very easy to use: just connect a telephone line to the loudspeaker through the controller, and you can rem...[Details]
Different initialization between C8051F and 80C51 series microcontrollers
In the past 30 years, major electronic component manufacturers in the world have launched their own unique single-chip...[Details]
In today's body control module (BCM) designs, savvy engineers are moving away from electromechanical relays whenever possible. Their next step is to eliminate fuses. But is eliminating fuses a nece...[Details]
Today, the value of electronic components in cars accounts for 15-20% of the total vehicle. In the future, this proportion may be as high as 30-40% as more safety electronics, fuel consumption and ...[Details]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[Details]
Fruit planting is an important part of China's agricultural development, and fruit tree pest control operations are becoming more and more important. At present, the overall level of pesticide applica...[Details]