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1. Development Environment Host: VMWare--Fedora 9 Development board: Mini2440--64MB Nand, Kernel:2.6.30.4 Compiler: arm-linux-gcc-4.3.2 2. Prerequisite Knowledge 1. Linux Input Subsystem: In L...[Details]
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Thanks to new technology for future vehicles, sunroofs and car window tints are now programmable features in your car. At the turn of a switch, you can now block the light coming through your car's s...[Details]
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5G innovations for global consumers and industry services become a reality The GSMA recently welcomed the international spectrum treaty adopted at the 2019 World Radiocommunication Conference (WRC-...[Details]
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On January 16, Taihu County held a signing ceremony for key projects of "double recruitment and double introduction". Two 5 billion yuan projects were successfully signed. This is another fruitful ...[Details]
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STM8T141: Single-channel capacitive sensor for touch or proximity detection with shielded sensing electrode The STM8T141 is a ProxSense™ single-channel, fully integrated, charge-transfer,capacitive s...[Details]
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#include regx51.h unsigned char code number ={0x06,0x7d,0x7d,0x06,0x07,0x5b,0x3f,0x3f,0x5b,0x4f,0x3f,0x06,0x7d,0x7d,0x06,0x07,0x5b,0x3f,0x3f,0x5b,0x4f,0x3f}; unsigned char code com = {0xfe,0xfd,0xfb...[Details]
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1. Limit filter method (also known as program judgment filter method)
A. Method: According to experience, determine the maximum deviation value allowed for two samples (set to A), and judge each ti...[Details]
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As the price of LEDs drops, LEDs begin to enter our homes. Let's briefly analyze the composition and performance of LED circuits:
1. Circuit composition
When more LED products are needed, if ...[Details]
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1. The concept of interruption
When the CPU is processing an event A, another event B occurs, requiring the CPU to process it quickly (interrupt occurs);
the CPU temporarily interrupts t...[Details]
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1 Overview The I/O port of the microcontroller is the channel for input signals and output signals. The 8051 microcontroller has four groups of I/O ports, P0, P1, P2, and P3, and each group of ports ...[Details]
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If the delay function is used to detect the key press, it will consume the memory of the microcontroller, which is not very good, so we have the following method: unsigned char cnt1 = 0XFF; cnt1 = ...[Details]
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Recently, foreign media published a new mobile phone patent submitted by Hisense, which shows that Hisense smartphone is equipped with a professional camera lens. The device adopts a full-screen desi...[Details]
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1. Introduction to ICL7106
ICL7106 is a 3½-digit A/D converter voltage application chip launched by Intersil Corporation. It is mainly used in instruments and meters and can form a 3½-digit l...[Details]
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The competition among notebook brands has always been rather boring, and the differences in configuration and price among various brands are still very small, which often gives people a feeling o...[Details]
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1 Introduction In the information age, both mobile phones and home appliances are gradually integrated into the network. Information appliances are consumer electronic products that integrat...[Details]
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