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1 Introduction The LED lighting market opportunities bring endless imagination to the industry. The application of LED lighting has jumped from outdoor LED to indoor lighting applications. Accor...[Details]

      Analysts including Ming-Chi Kuo and Jiutang Pan have pointed out that the iPhone 12 will no longer come with wired headphones and chargers. 　　Apple is said to be doing this to offset other upgr...[Details]

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In today's society, people greatly enjoy the convenience brought by electronic devices, but any electronic device has a common circuit-the power supply circuit. DC power supplies tend to be multifu...[Details]

#include typedef unsigned int uint; typedef unsigned char   uchar; sbit BEEP=P3^3; uchar code smg_tab ={0x28,0x7e,0xa2,0x62,0x74,0x61,0x21,0x7a,0x20,0x60,0x30,0x25,0xa9,0x26,0xa1,0Xb1}; //delay ...[Details]

Twisted pair transmission The advantages of video do strengthen our confidence in using twisted pair video transmitters in projects, but there are still some problems in actual produ...[Details]

//The crystal oscillator of this machine is 11.0592, using stc89c51 single chip microcomputer, and the two buttons P3.2 and P3.3 control the output frequency of the square wave generator. #include re...[Details]

The extensive use of traditional transformer rectifiers and nonlinear loads results in a high current harmonic content in the power grid, which has a great impact on the aircraft power supply syste...[Details]

Yesterday, at the 360 ​​Government and Enterprise Security New Strategy Conference, Zhou Hongyi made a rare comment on the mobile phone industry, saying with a smile: "Companies in the mobile phone i...[Details]

introduction Development boards enable rapid prototyping of charging concepts, reduce development costs, increase flexibility, and enable faster time to market. They accelerate pro...[Details]

Recently, TCL Group recently accepted a survey from Xingquan Fund and other institutions and stated that TCL Huaxing's under-screen camera products are expected to be mass-produced in 2020. In additi...[Details]

      Since HMD took over Nokia's mobile phone business from Microsoft, it has launched a number of replicas of Nokia's classic models, including the previously launched 6300 and 8000 and other class...[Details]

1. Theoretical basis:         Stm32f030R8 has 64KFlash + 8KSram        The positioning of the interrupt vector table of the Stm32f0 series MCU is a little different from that of other STM32 s...[Details]

Digital multimeters are relatively simple measuring instruments. In this article, the editor will teach you how to use digital multimeters correctly and how to maintain them. Starting from the measur...[Details]

The inverter is an electrical device that converts AC power into AC power with adjustable frequency. It is widely used in industrial automation, motor drive and other fields. In practical applicati...[Details]