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I found that when I press a keyboard key, I can immediately send a release action, and I can't release the key. After measurement, there must be a certain delay in the middle, and some say that the c...[Details]

According to foreign media reports, the batteries that power electric vehicles have several key characterization parameters, including voltage, temperature, and state of change (SOC). Since battery f...[Details]

PWM, the full name of Pulse Width Modulation, is translated as pulse width modulation. Function: Change the pulse width to achieve different effects. Digital signals can be used to achieve the effe...[Details]

Ni Guangnan, an academician of the Chinese Academy of Engineering, once pointed out that the CPU market is monopolized by x86 and Arm architectures. If China wants to break this situation, open sourc...[Details]

NXP’s flagship 4D imaging radar chip enters mass production, with new offering tailored for the fast-growing L2+ market NXP’s flagship S32R45 and new S32R41 processors address L2+ to...[Details]

IT Home reported on March 27 that according to the Russian Satellite News Agency, due to US sanctions, Google has stopped certifying smartphones of Russia's BQ company running the Android system. The...[Details]

There are two types of thyristors: unidirectional thyristors and bidirectional thyristors, both of which have three electrodes. Unidirectional thyristors have a cathode (K), an anode (A), and a contr...[Details]

STC89C52RC can use P1.0 to output a frequency of 500KHz. Here is the source code and the entire project I wrote myself. I hope it can help someone who is interested! The microcontroller source prog...[Details]

In the mobile phone market with so many products, how to catch the attention of consumers at first sight is a big challenge for manufacturers. Recently, OPPO has presented a high-quality answer. The ...[Details]

Flow cytometers are widely used by clinicians and diagnosticians to analyze cellular characteristics. Protein levels, blood health, granularity and cell size, and other properties are optically asses...[Details]

1 clock cycle = 1/crystal frequency M 1 machine cycle = 12 (12T for 51 series, 1T is 1) X clock cycle = 12 (1) X (1/crystal frequency M) = 1 us (1/12 us) Number of pulses in 1us machine cycle = cryst...[Details]

HD7279A hardware circuit diagram HD7279A is a special intelligent control chip for managing keyboards and LED displays. It can manage and drive 8-bit common cathode LED displays or 64 LED light-emi...[Details]

This learning material introduces and defines RF terms used in mixer, amplifier, and oscillator data sheets. Terms introduced include gain, conversion gain, phase noise, third-order intercept point...[Details]

As the penetration rate of electric vehicles continues to rise, intelligence led by big models and big data has become the key to improving the competitiveness of automobile companies. Intelligent dr...[Details]

New energy storage is an important technology and basic equipment supporting the new power system, and plays an important role in promoting high-quality energy development, promoting energy structure ...[Details]