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1. Measure the polarity of each foot of the rectifier bridge Set the multimeter to R×1k, connect the black probe to any pin of the bridge stack, and use the red probe to measure the other three pins ...[Details]
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Overview The active crystal oscillator on the demo board outputs a 25MHz or 27MHz square wave. When the measurement bandwidth of the oscilloscope is low, many high-frequency harmonic components of th...[Details]
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OPPO released its first foldable screen mobile phone on December 15, 2021. With its extremely competitive price of 7,699 yuan and a crease-free design, this foldable screen mobile phone has attr...[Details]
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In a rare move for Apple, the company reportedly released a 59-page report last week declaring itself a leader in health technology. The company published an in-depth report last week detailing ev...[Details]
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Apple officially released a number of new products including iPhone, Apple Watch, and iPad through online channels. The suspense brought by the so-called iPhone 13 and Apple Watch S7 product pictures...[Details]
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Sensor
- converts the physical quantity to be measured into another physical quantity that can be read and processed. The most commonly used in modern control is electrical signal.
...[Details]
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1. Identify positive and negative poles According to the pin arrangement of the photodiode, the pin close to the tube key or marked with a color dot is the positive pole (i.e., P pole), and the other...[Details]
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/* AVR microcontroller I2C bus experiment. 1. Use 24C02 to record the number of CPU startup times and display it on the PB port. 2. Internal 1 M crystal oscillator, the program adopts single-task...[Details]
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The Louis Vuitton (hereinafter referred to as "LV") 2020 Early Spring Women's Fashion Show (Louis Vuitton Cruise 2020 Show) was held at New York's John F. Kennedy International Airport. The world's f...[Details]
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ARM has 16 32-bit registers (r0 to r15).
r15 acts as the program register PC, r14 (link register) stores the return address of the subroutine, and r13 stores the stack address.
ARM has a current ...[Details]
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Since the end of April, A-share listed companies have released their 2020 annual financial reports and 2021 first quarter financial reports. Some companies with significant performance increases have...[Details]
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Wireless power supply is a very attractive production topic. Many electronic magazines and forums have introductions to the production of wireless power supply circuits. Although these circuits have ...[Details]
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Suppose you want to send a set of data Send
Generally, the query sending (loop sending) method is adopted:
unsigned char Send ; //Sending amountunsigned
char i; //Loop amountfor
(i=0;i 10;i++)
...[Details]
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ARM CPU big and small endian: Big-endian mode: low-order bytes are stored at high addresses, and high-order bytes are stored at low addresses. Little-endian mode: high-order bytes are stored at high...[Details]
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The figure shows a single current source mode drive circuit. In this single current source mode, PMOS tubes M5 and M6 form a current mirror, which can provide a constant current for the output circui...[Details]
RF/Wirelessly
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