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Insert the digital multimeter pen into the "COM" and "VΩ" holes, turn the knob to the required range in "Ω", and connect the test pen to the metal parts at both ends of the resistor. Note: 1. If the...[Details]
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#include
#define uchar unsigned char //byte
#define uint unsigned int //word
sbit led1=P0^0;
sbit led2=P0^1;
sbit fir=P2^4; //fir=0;working
sbit sec=P2^5; //sec=0;working
sbit thi=P2^...[Details]
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The plug that connects the multimeter's test leads to the multimeter socket has different structures for different pointer-type multimeters. The specific processing methods are as follows. (1) Open-...[Details]
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Most semiconductor manufacturers often overlook the integration of the secondary side of AC/DC redundant power supplies, resulting in numerous discrete components such as operational amplifiers, tr...[Details]
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Opho's latest Keys is a popular keyboard. It has raised $50,000 in Indiegogo in just three days. It has already raised 220% of its target and there are 24 days left. The project was designed in 201...[Details]
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#include "regs.h" void enable_mmu(unsigned long ttb); void init_ttb(unsigned long *ttb_base); void mmap(unsigned long *ttb_base, unsigned long va, unsigned long pa); void memset(char *buf, char ch, i...[Details]
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For today's mobile phone manufacturers, everyone is busy with one thing, that is, how to actually put the camera under the screen and meet the requirements for large-scale market launch. Acc...[Details]
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I recently made a mistake testing the operation: Test scenario: Take power directly from the mains socket and connect it to the 3W non-isolated switching power supply circuit board. Use an oscillosco...[Details]
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Foreign media SamMobile reported that Samsung will officially launch the Samsung Health Monitor app in Galaxy stores in 31 new countries and regions, most of which are in Europe, and some in th...[Details]
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First, let's introduce the concept of cache. The role of cache: Due to the limitation of program access, a high-speed, relatively small memory is set between the main memory and the general regis...[Details]
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Recently, foreign media reported that Audi has developed a containerized car charging system. The system has a storage capacity of about 1000kWh and can charge three cars at the same time, with a max...[Details]
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A power amplifier (English name: power amplifier), referred to as "power amplifier", refers to an amplifier that can generate maximum power output to drive a load (such as a speaker) under given dist...[Details]
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μC/OS-II is portable and suitable for deprived real-time multi-tasking embedded systems with strict safety requirements. It is simple and easy to learn and is very popular in engineering applications...[Details]
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The so-called capacitor is an electronic component that holds and releases electric charge. The basic working principle of the capacitor is charging and discharging, of course, there are also rectifi...[Details]
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Wollongong-based energy storage company Green Gravity has begun regional studies, site concept engineering and local community engagement at Mount Isa in Queensland, Australia, 1,80...[Details]
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