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According to a new research report released by Strategy Analytics, Apple Watch outsold the entire Swiss watch industry in 2019. Apple Watch shipped 30.7 million units worldwide in 2019, while the tot...[Details]
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There is such a problem: －－－－－－－－－－－－－－－－－－－－－－－－－－－－－ It is known that before the program is executed, A = 02H, SP = 52H, (51H) = FFH, (52H) = FFH. Perform the following procedure: POP DPH ...[Details]
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1. High temperature, high pressure and impact test:
Target: LED lamps (finished lamps including LED Driver)
Reference standard: Industry experience
Test Methods:
1. Place the five LED...[Details]
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/*AD converter program in AVR chip. This test program sets the internal AD converter to continuous conversion mode. For more modes, see pages 191-207 of the manual*/ #include iom16v.h #define ucha...[Details]
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Because the 12232F display is commonly used, but what we usually see are some parallel port assembly programs, and there is no parallel port program corresponding to 12232F, and the serial port C51 p...[Details]
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2 Output circuit design
The output port of the microcontroller is limited by the driving capability, and generally requires a dedicated interface chip. Although its output varies greatly depend...[Details]
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Many microcontroller-based systems have both analog and digital signals. Even systems that appear to be completely digital are not completely digital because of analog effects such as ringing and cro...[Details]
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0 Introduction
Unmanned aerial platforms play an increasingly important role in the testing of electronic information equipment. The temperature and humidity of the environment in which the mission...[Details]
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Many of my friends are like me. They majored in electronics engineering. They took a lot of signal courses, didn’t understand anything, memorized formulas, took exams, and then graduated.
Let's sta...[Details]
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On July 12, Honor Magic flagship new product launch was held grandly, and the new generation of thin and light folding flagship products Magic V3 and Vs3 series made a stunning appearance.
BO...[Details]
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1. Introduction
Radiation dosimetry is an attempt to explore the transfer of radiation energy and the absorption of its energy by biological tissues, and to determine the radiation value by exp...[Details]
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CCFL and LED are the only two backlight sources for LCDs. CCFL is a traditional backlight method, while LED, as a rising star in LCD backlight, is rapidly seizing the LCD backlight market.
The...[Details]
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introduction With the rapid development of the current logistics industry. Container transportation is the main mode of logistics transportation. Its transportation efficiency and freight safety have...[Details]
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Planar inductors have realized the miniaturization and chip-type of inductor devices. When the operating frequency reaches
the RF
or microwave band, the influence of the radiation and scatt...[Details]
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Introduction
Electric heating furnace is a typical industrial process control object. Its temperature control has the characteristics of unidirectional heating, large inertia, pure lag...[Details]
FPGA/CPLD
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