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The MK9-5/PA8-5 tobacco rolling and connecting unit is one of the earliest tobacco equipment introduced in my country. It is a product of the British company MOLINS in the 1970s. Its electrical s...[Details]

Common emitter amplifier circuit 3.2.1 Composition principles of amplifier circuits When forming an amplifier circuit, the principles that must be followed are: 1. Set up a DC power suppl...[Details]

1 Basic principles 2 Implementation Code /*----------------Function function:     External interrupt RB0/INT Press the button (that is, generate an interrupt), and the LED lights up ------...[Details]

According to foreign media reports, General Motors has obtained a patent for a display system with selective light-shielding capabilities. The patent application was filed on March 2, 2021. On Octobe...[Details]

1. PB4 is always at a high level, causing the ultrasonic sensor to fail to work. I searched on Baidu and found that some pins of stm32 are not general GPIO by default when powered on, such as JTAG an...[Details]

1. What is memory alignment? Why do we need memory alignment?           The memory space in modern computers is divided into bytes. Theoretically, it seems that access to any type of variable can s...[Details]

IBM recently released a new thin-film solar cell. This cell has increased the energy efficiency of similar cells from 9.6% to 40%. Its raw material cost is lower than that of traditional solar cells...[Details]

This article will discuss various power topologies, especially the pros and cons of converting Li-Ion battery voltage to a 3.3V rail, the supply voltage for most portable devices. It will also desc...[Details]

      If you have worked with 51's I2C, you will definitely feel that you have met it too late if you look at STM32's I2C driver. STM32 comes with its own I2C hardware module, and with ST's official l...[Details]

//External interrupt 0, used for encoding switch decoding, decoding diagram: A is connected to the interrupt pin (PD2 of AVR) as a reference, B is used to determine the direction (connected to PA1 of ...[Details]

I have been learning 51 MCU for more than a month. I stayed up all night to participate in a competition and wrote the OLED+DHT11 program. The MCU source program is as follows: #include "REG51.h" #...[Details]

A lot of information about Xiaomi MIX 4 has been exposed online earlier, such as the waterfall screen design, and now a Weibo blogger has exposed the core configuration of Xiaomi MIX 4. According t...[Details]

This ultra-compact elastic memory chip improves SWaP and can be used in advanced missions such as communications, Earth observation, science and edge computing satellites. Engineerin...[Details]

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As the payment field moves towards digitalization, protecting digital identities and transactions becomes increasingly important. In addition to standard contactless payment cards, biometric p...[Details]