SC30R039KL

This is a simple - and easy to build - alarm circuit. For power - I used a small 9 volt battery. But the circuit will work from 5 to 15 volts - just choose a buzzer that is appropriate for the voltage...[Details]

Recently, the United States added Huawei to the "Entity List", and major international software and hardware companies were entangled in an attempt to jointly "eliminate" Huawei, which aroused widesp...[Details]

Recently, according to foreign media reports, at the 2021 IAA Mobility exhibition, WayRay launched a new Deep Reality Display system, which can replace the traditional car dashboard with a new immers...[Details]

On the afternoon of August 26, the first collision of BYD Han equipped with blade batteries in China attracted a lot of attention. In Fengtai District, Beijing, a BYD Han EV small car was driving fro...[Details]

     There are only 22 days left until the 2021 Spring Festival. As the "Year of the Ox" approaches, major mobile phone manufacturers have also launched peripheral products related to the "Year of th...[Details]

The semi-annual report disclosure of listed companies kicked off in July. In the context of the overall poor economic environment, what kind of answers will the major companies hand in? How should lo...[Details]

Film capacitors are a type of electronic component - capacitors. They use metal foil (or foil obtained by metallization on plastic) as electrode plates and plastic film as dielectric. They are woun...[Details]

On January 19, NXP Semiconductors announced the launch of a new 28nm RFCMOS radar single-chip series for the next generation of ADAS and autonomous driving systems. The newly launched SAF85...[Details]

 When you walk into a museum, you no longer just look at the cultural relics and treasures from afar through the cold windows, but travel back to the world thousands of years ago through digital virt...[Details]

#include reg51.h #include intrins.h #define uint unsigned int #define uchar unsigned char void delay(uint z); wint temp; void main() { temp=0xfe; P0=temp; while(1) { delay(1000); temp=_crol_(temp,...[Details]

With the development of the IT industry, "computing power" has played an important role in the "civilian" and "commercial" fields, which has posed challenges to the usability and compatibility of com...[Details]

In fact, in March and April, manufacturers in the field of test and measurement technology applications have been constantly innovating and new technologies have emerged. The booming market demand fo...[Details]

U.S. President Trump said on Wednesday evening that "as a goodwill gesture", he would postpone the date of increasing tariffs on $250 billion of Chinese goods and products from October 1 to October 1...[Details]

my country's textile industry has a long history. After joining the WTO, China has become the world's largest textile producer, which has brought a wide space for the development of the embroidery in...[Details]

Lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and non-aqueous electrolyte solution. The earliest lithium battery came from the gre...[Details]