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The circuit in Figure 1 generates an output voltage that you can measure to determine if the two sine waves are in quadrature. If the output voltage is 0V, the input waves (φ1 and φ2) are in perfec...[Details]
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#include
#define uint unsigned int
#define uchar unsigned char
uchar flag,p;
sbit l5=P0^4;
sbit beep=P3^4;
uchar scan_key(void)
{
uchar temp;
temp=P0;
return temp;
}
void delay(uint k)
{...[Details]
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introduction
Traditionally, the automatic water regime monitoring and reporting system in the northern high-altitude cold regions must be dismantled in winter and then reinstalled in the s...[Details]
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RF Multilayer and In-house PCB Prototyping Multilayer RF circuit board sample production Processing Rogers bonding materials with LPKF prototyping equipment LPKF Prototyping Equipment Processin...[Details]
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Long Term Evolution (LTE) is rapidly gaining popularity around the world. China Mobile has started the construction of more than 200,000 TD-LTE base stations across the country, and 100 key cities ...[Details]
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The original intention of developing Thunderbolt was to replace and unify the numerous expansion interfaces with uneven performance on current computers, such as SCSI, SATA, USB, FireWire and PCI E...[Details]
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On the afternoon of May 26, Redmi Mobile will hold a new product launch conference to release the new Redmi 10X. Now the official Redmi 10X real machine has been exposed, and the front uses the...[Details]
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On May 9, Wang Bin, Deputy Secretary of the Party Committee and General Manager of PowerChina, held talks with visiting ACWA Power Vice Chairman and Managing Director Sander at the headquarters...[Details]
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The Embedded System Association, jointly initiated by well-known domestic scholars and industry professionals, has been established and operated for 10 years. The Embedded System Association provides...[Details]
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Regarding the interrupt of STM32, I believe that friends who have played with microcontrollers know that interrupt is a major advantage of MCU, which enables MUC work to distinguish the "priorities"...[Details]
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Schematic ##//Source code #include reg52.h #include stdlib.h #define uint unsigned long #define uchar unsigned char sbit N1 = P1^0; sbit N2 = P1^1; sbit N3 = P1^2; sbit N4 = P1^3; sbit N5 = P...[Details]
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In recent years, "specialization, precision and innovation" has become a hot word. On July 30, 2021, the Political Bureau of the CPC Central Committee proposed that we must strengthen scientific and...[Details]
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Swiss scientists have carried out computational studies of two-dimensional materials like graphene to determine which would make the best transistors. From a pool of 100 candidate compounds, 13 sho...[Details]
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Since last year, when the 5G order was issued, the entire industry chain has entered a state of "one move affects the whole body". On the premise that the three major operators want to realize 5G bas...[Details]
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Apple has accumulated huge wealth in hardware long before its services business became a hot topic. When Apple considers entering the automotive market, people seem to be looking forward to how Apple...[Details]