The passive buzzer on the control boardThe sound is mainly produced by controlling the high and low pulse signals. The sound frequency is controllable. Different frequencies will produce different ton...
LOTO arbitrary waveform generator SIG82 simulates the output of relay energization and disconnection signal waveforms for algorithm debuggingThe current change process when the relay is energized is a...
Spring is bright and beautiful, with bright sunshine everywhere, colorful flowers everywhere, melodious birdsong and insect chirping everywhere, and intoxicating fragrance everywhere. This is a green ...
With the development of ubiquitous computing and mobile communication technology, people gradually use u (ubiquitous, meaning "everywhere") to replace e to describe information-based things, and count...
I bought it for more than a year and haven't powered it up once. Alas, instead of letting it gather dust, I might as well pass it on to someone who needs it. Elite version + 4.3 inches + CAN/RS485 mod...
For most students, the college entrance examination is an important turning point in their lives, and choosing the right major is the key to determining their future career.
If the candidate is intere...
TK2671 digital insulation resistance tester is used to test insulation resistance. This instrument is a high-performance digital instrument with a large LCD screen with backlight display, data retent...[Details]
The basic structure of the microcontroller includes six parts: central processing unit (CPU), memory, timer/counter, input and output interface, interrupt control system and clock circuit. 1. Basic...[Details]
VIA today released a new fanless mini system "ARMOS-800", which is its first industrial system based on ARM architecture. Before this, VIA AMOS series used its own processors, but this time when the ...[Details]
#include
unsigned char flag,a;
void delay();
void main()
{
TMOD=0x20; //Set timer 1 to work mode 2
TH1=0xfa; //TH1=256-2^0*22118400/32/12/9600 The baud rate is 9600 and the crystal ...[Details]
1 LED driver semiconductor light emitting diode characteristics
Like ordinary diodes, light-emitting diodes are P/N junction devices made of semiconductor materials. In addition to being able to...[Details]
Cement users require cement to be uniform and of stable quality, especially modern construction projects have higher and higher requirements for cement quality, which is becoming more and more urgent....[Details]
With the improvement of technology and process, the factor that limits the communication distance in the communication system is no longer the weakness of the signal, but the degree of noise interfere...[Details]
With the general trend of the integration of home appliances, communications, and consumer electronics, IPTV systems based on IP broadband networks have gradually become a hot topic. IPTV (Internet P...[Details]
Traditional millimeter wave radar is also called 3D millimeter wave radar, which has three dimensions of information, namely distance, speed, and azimuth. On this basis, 4D millimeter wave radar ad...[Details]
Zhongjing Technology said in an institutional survey that the current market environment of the semiconductor industry is good, the company has full orders and tight production schedules. The company...[Details]
On July 26, Shandong Lithium held a press conference in Heze City, announcing that the 62,500-ton lithium iron phosphate and 100,000-ton iron phosphate projects were put into full production. At th...[Details]
// 0 sets the value in down_counter (beeping frequency)
//-------------------------------------------------------------
static int xiaoyang_beep_ioctl(struct inode *inode, struct f...[Details]
In order to save energy and electricity, LED has been widely promoted, but LED needs a power supply, the quality of which will directly affect the life of the LED, so how to make a good LED driver ...[Details]
According to Bloomberg, Indian Information and Technology Minister Ashwini Vaishnaw said that after India provided incentives for the semiconductor industry, at least a dozen semiconductor manufactur...[Details]
Biometric payment cards with integrated fingerprint sensors make contactless payments more convenient, secure and hygienic. The contactless card remains in the cardholder's hand throughout the paymen...[Details]
MicroPython Open Source section
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