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On May 20th, Beijing time, for well-known reasons, the mobile phone operating system Android became the focus of attention at home and abroad. In the Chinese market, in addition to being widely use...[Details]
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1. Necessity Analysis
With the continuous improvement of digital chip processing capabilities, the structure of today's communication systems and radar systems has shifted to a hybrid system with ana...[Details]
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On April 15, CATL announced that its subsidiary Guangdong Brunp, Puqin Times, plans to invest in a power battery industry chain project in Indonesia. The total investment amount has been determined t...[Details]
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For a detailed analysis of STM32's low power consumption, please refer to the interpretation of STM32's low power consumption mode . It is mentioned that when STM32 is in stop mode, the chip's 1.8V a...[Details]
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"Make a good car, make a good car that is recognized by the market, has vitality and core competitiveness." This is Wang Yunzhong's career ideal, simple but full of energy. As the chief engineer of...[Details]
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As early as October, a vivo phone with model number V2154A passed the 3C certification. At that time, some people speculated that this device might be launched in the Chinese market under the name iQ...[Details]
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1. PID block diagram:
n0(t) is the value to be stabilized
n(t) is the current output value
e(t) = n0(t - n(t)
1. Analog PID control principle
This formula is easy to find o...[Details]
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(Image source: Silicon Labs official website) According to foreign media reports, Silicon Labs, a supplier of in-vehicle radio solutions, has launched a new hybrid SDR (software defined radio) t...[Details]
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Yesterday, WinFuture's Roland Quandt revealed the full specs of the upcoming Google Pixel 5. Today, he revealed the specs of the Google Pixel 4a 5G. According to his new leak, the two smartphones are...[Details]
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The MCS-51 microcontroller driver of K9F5608A mainly includes function declaration pin definition part, command operation function and data output function. (1) The function declaration and pin def...[Details]
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Recently, the rights protection at the Shanghai Auto Show and the death of one person after a Tesla crashed into a concrete wall in Guangzhou have pushed Tesla to the forefront of public opinion. O...[Details]
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Some Apple customers who have pre-ordered the iPhone 12 mini and iPhone 12 Pro Max have found that the shipping information for their orders has been updated, and the official website has informed th...[Details]
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1. Design plan The microcontroller AT89C52 is used as the main control chip, and the peripheral clock chip DS12C887 is used. The P0 port of the microcontroller is connected to the DS12C887, the P...[Details]
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2.2.2.3 Principle of resistance measurement using the bridge method
The DC double-arm bridge is also called the Kelvin bridge, which is mainly used to measure low-value resistance. The circuit diag...[Details]
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1. Kernel modification
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Make the Bluetooth core into a module.
And configure as follows,
Blueto...[Details]