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1 Basic principles of sound and light alarm system
Ultrasonic waves refer to mechanical waves with a frequency higher than 20,000 Hz. In order to realize ultrasonic echo ranging, ultrasonic wav...[Details]
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Learning microcontrollers requires writing a lot of code manually. Generally, the amount of code for just learning 51 microcontrollers will not be too much. You need to have a certain knowledge of C ...[Details]
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Specific implementation functions: (1) The measurement and display of temperature and humidity values are stable and accurate; (2) The temperature and humidity alarm thresholds can be set by p...[Details]
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PIC12C509 - Getting Around the Stack Limitation The 12C5 series PIC has only a two level stack which limits the number of nested subroutine calls to two. This may be a very serious limitation. (T...[Details]
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introduction
UPS power supply system is an essential power supply for power, communication, banking and other industries. It has a history of several decades since its creation. In the process...[Details]
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Schematic diagram:
/************MCU teaching experiment board******************/
/*Function description: Learning board overall demonstration program */
/*Author: Zheng Wen */
/*Wri...[Details]
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For a beginner of single-chip microcomputer, if you learn in a textbook way, you will start with a lot of instructions and nouns. After learning for a long time, you still can't figure out what thes...[Details]
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#include reg51.h #define SEG P2 sbit P1_0 = P1^0; sbit P1_1 = P1^1; sbit P1_2 = P1^2; sbit P1_3 = P1^3; sbit P1_4 = P1^4; unsigned char code tab ={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x3c,0x...[Details]
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/* Enable CRC clock */ RCC_AHBPeriphClockCmd(RCC_AHBPeriph_CRC, ENABLE); //STM32CRC u32 CRC32(u8 *pBuf, u16 nSize) { u32 index = 0; CRC_ResetDR(); //Reset CR...[Details]
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Question: Why is the EAX register used to save function return values?
In fact, IA32 does not specify which register to use to save the return value. But if you disassemble the Solaris/Linux bi...[Details]
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Formaldehyde is a colorless gas with a pungent odor. It is also a potential carcinogen that is harmful to human health. Many diseases are related to formaldehyde, such as asthma and leukemia. When ...[Details]
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1. First, confirm whether the STM8 you are using has its own bootloader. Refer to the table below. 2. STM8 empty devices can directly use their own bootloader. 3. After STM8 is burned using SWIM, i...[Details]
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Introduction: The design of USB low-speed devices has reached considerable maturity. Various IC companies have launched USB DEVICE-side solutions, generally using 8 BIT CPU CORE + USB SIE as th...[Details]
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This article is a summary of the previous one, which involves the most basic environment construction issues in embedded Linux development. I will put my summary online later. Let's get started.
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In order to control the actuator, the real-time control system receives input signals from sensors and outputs command signals to the actuator after control operations. These outputs must be trigge...[Details]
RF/Wirelessly
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