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The hot summer makes us feel unbearable. Even breathing is hot on the way to work. I envy those who have cars. And those friends who drive to work every day don't seem to be much better. The sun scor...[Details]
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Blade batteries are starting to "roll up", with long and short blades emerging one after another. After Geely launched a new generation of "blade-type" Aegis short blade batteries, Great Wall Motor...[Details]
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Portable Microphone Preamplifier
Parts:
P1______________2K2 Linear Potentiometer
R1,R2,R3______100K 1/4W Resistors R4______________8K2 1/4W Resistor R5_____________68R 1/4W Resistor R6...[Details]
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On August 9, according to the first half performance report released by China Unicom, 3G business service revenue was 40.91 billion yuan, exceeding 2G business revenue for the first time, which show...[Details]
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Valve's game handheld Steam Deck has been officially released today. The handheld has a good reputation in many media, but some players are not very satisfied with its battery life. Valve's desi...[Details]
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I was a bit busy these two days. I soldered four buttons and realized GPIO input based on the LED light. This time we use the official library of ST company The key is to understand the functions of ...[Details]
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1. Arm instruction condition codes and condition mnemonics 2. Jump instruction B 1. Function Jump instruction B causes the program to jump to the specified address to execute the program (the...[Details]
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UA3730 password control circuit diagram
The password control component composed of the password control integrated circuit can be conveniently connected with the peripheral actuator and has the fun...[Details]
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Apple appears to have been working to reduce its reliance on Chinese factories in recent years, and its list of suppliers has been constantly changing. In a recent teardown of the newly released iP...[Details]
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At present, electric vehicles are becoming more and more popular, but some consumers are still hesitant to buy electric vehicles. One of the reasons is that the charging time of electric vehicles is ...[Details]
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In the last class, we mentioned the internal structure of one of the microcontroller IO ports, the "quasi-bidirectional IO". In fact, our microcontroller IO port has three other states, namely open d...[Details]
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/*It took a lot of effort to solve this very simple problem. Please pay attention to the difference between the interrupt vector address and the vector number. */ /*The clock beat can be in microseco...[Details]
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1. Key measurement parameters of BER 1) Signal rate accuracy 2) Signal amplitude accuracy 3) Data signal rise time, various jitter parameters 5) Clock signal rise time, jitte...[Details]
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In recent years, various low-power microcontrollers have been widely used in various types of instruments, especially the 89C51/2 microcontroller due to its excellent performance, low price and stand...[Details]
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In today's rapidly developing field of autonomous driving technology, the role of sensors is becoming increasingly prominent. They are the cornerstone of vehicle environmental perception. Among the...[Details]