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u8 KEY_Scan(u8 mode)
{
static u8 key_up=1;//button press and release flag
if(mode)key_up=1; //Support continuous pressing
if(key_up&&(KEY0==0||KEY1==0||KEY2==0||KEY3==1))
{
delay_ms(10); //de...[Details]
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Text Introduction to the principle of ultrasonic flowmeter: Currently, two types of ultrasonic flowmeters are commonly used, one is Doppler ultrasonic flowmeter, and the other is time-difference ultra...[Details]
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Since the popularization of smartphones and WiFi, wireless networks have become an indispensable part of everyone's life. Especially with the rise of video platforms today, the high traffic load make...[Details]
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In recent years, portable music players have become very popular. There are many reasons for this, such as the massive amount of compressed music content, the continuous decline in data storage cos...[Details]
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According to reports, the E-NCAP crash test standards will undergo the largest adjustment in 10 years and will introduce new large vehicle evaluation standards. For example, in a crash test, if a lar...[Details]
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The basic components of commonly used analytical instruments
The basic components of analytical instruments are as follows: sampling device, pretreatment system, separation device, detector and d...[Details]
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AirTags have been one of the most rumored Apple products over the past few years before they were officially announced earlier this year. Initial reports about Apple's item tracker began to surface i...[Details]
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introduction
With the continuous advancement of technology, various data communications are being used more and more widely. Due to the influence of many factors such as transmission dista...[Details]
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This article introduces a pulse measuring instrument made of a single-chip microcomputer. Just put your finger in the sensor and you can quickly and accurately measure the pulse rate per minute. Th...[Details]
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#include "SPCE061A.H" unsigned int g_uiOutput=0,iii=0; void IRQ6(void) __attribute__ ((ISR)); void IRQ6(void) { if(*P_INT_Ctrl&C_IRQ6_TMB1)//C_IRQ6_TMB1 corresponds to *P...[Details]
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First disconnect, disassemble the power cord, and adjust to the ω position. If it is a star connection, connect one test lead to the star point, and use the other test lead to measure the abc three-p...[Details]
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High-brightness LEDs
have brought continuous changes to the lighting industry, adding more flexibility and intelligence to various lighting systems, including white light and color light desi...[Details]
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The moisture content of grain is a key indicator of grain quality, which directly affects the grain procurement, transportation, storage, processing, trade and other processes. At present, when domest...[Details]
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This is a 20W Hi-Fi amplifier circuit based on single amplifier IC TDA2040. A single TDA2040 can provide 20W power output. A bridge amplifier consisting of dual TDA2040 can provide 30W power output...[Details]
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On May 31, the Hong Kong Polytechnic University (PolyU) announced that it had recently achieved a scientific breakthrough with scientists from South Korea’s Yonsei University. The light sensor they d...[Details]
Microcontroller MCU
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