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The sensitivity of electret microphones, which are widely used in radio recorders, telephones and other electrical appliances, directly affects the transmission and recording and playback effects. ...[Details]
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1. SWI software interrupt principle. In privileged mode, processor mode switching can be switched through software control, that is, modifying the mode bit of CPSR. However, in user mode, there is ...[Details]
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0.4. Calculation of Push-Pull Switching Power Supply Transformer Parameters
The switching transformer used in the push-pull switching power supply has two primary coils, both of which are exci...[Details]
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Mouser Electronics, Inc., the leading global distributor of electronic components and new product introductions, today announced that it has expanded its global distribution partnership with Advanced...[Details]
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When the semiconductor direct cooling hot and cold water dispenser is in use, the direct cooling hot and cold water dispenser is provided with normal temperature water by the water tank, and the wate...[Details]
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The internal pull-up and pull-down resistors have a typical resistance of 40K ohms. Check 5.3.12 I/O port pin characteristics of STM32F103x6/STM32F103x8/STM32F103xB DATASHEET as follows: The red b...[Details]
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Central topics:
Power supply ripple analysis and testing
solution:
Remove the clip and ground wire from the oscilloscope control head
By properly setting up and operating the oscilloscope...[Details]
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1. Use chip PIC18F25KXX; 2. The actual picture is as follows: 3. Use PICKIT3 downloader to download the program; use 20pf chip capacitors and 4.096 passive crystal oscillator; peripheral circuits...[Details]
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The arrival of 5G will bring earth-shaking changes to people's lives. The huge charm of the Internet of Everything has made some countries crazy about it, and they are rushing to determine the winner...[Details]
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1 Introduction
In fact, humanization is a very important part of any design. The development of information technology has brought people the benefits of touch screens. Since touch screens...[Details]
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Next, we will use the MF47 multimeter to introduce the structure of the pointer multimeter. The MF47 multimeter is a highly sensitive, multi-range portable rectifier meter that can measure basic it...[Details]
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Some time ago, we discovered through some code in the Realme Link app that Realme is developing two new smartwatches, called Realme Watch 2 and Realme Watch 2 Pro. Now, Realme Watch 2 Pro seems...[Details]
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In the single-chip microcomputer application system, it is often necessary to communicate with the microcomputer through the RS-232 serial port. Among various operating systems, Microsoft's Windows is...[Details]
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PA3, PA4, PA13, PA14, and PA15 of STM32 are pins used for JTAG
If you want to use it as a normal IO port, you need to configure
Add in pin initialization
GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDi...[Details]
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On October 24, the ZeroBeam Full-Stack 4.0 Ecosystem Co-construction Summit with the theme of "Intelligently Driving the Future and Working Together for a New Era" was held in Shanghai. Dozens of t...[Details]