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ARM series processors are RISC (Reduced Instruction Set Computing) processors. Many ARM-based efficient code programming strategies are derived from RISC processors. Like many RISC processors, ...[Details]
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The circuit analysis method that uses branch current as circuit variable, establishes circuit equation according to KCL and KVL, and solves the circuit equation jointly to solve each branch current...[Details]
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When using GPIO as output, a pull-up resistor must be added because the default is open drain, high impedance state, and cannot output a high level.
When inputting, it is necessary to choose whethe...[Details]
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Mode 0: This working mode is quite special. It is different from the common serial port of microcomputers. It is also called synchronous shift register output mode. In this mode, data is serially outp...[Details]
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With the development of production and the improvement of automation requirements, in order to solve the problem of reliable and accurate level measurement during material storage and transportatio...[Details]
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1 Introduction
Maintenance-free batteries (referred to as batteries) are widely used in electric bicycles, electric tour buses and uninterruptible power supply systems due to their ease...[Details]
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3D printers have become an important aspect of rapid prototyping and have reached a wide range of makers and engineers. But most of these printers are hobby machines and therefore require constant ...[Details]
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Current expansion circuit
Selection of current expansion circuit. The figure shows a circuit that uses an external composite tube to expand the current. The output current of this circuit ...[Details]
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Preface
TCD detector is the most widely used universal detector, but there are many factors that make TCD detector unstable. Since the factors that affect the unstable baseline involve most of th...[Details]
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Tianjin Mobile and Huawei jointly completed 5G 8K ultra-high-definition sports event live broadcast. People's Daily Online, Tianjin, April 13 (People's Daily Online) - This morning, the 10th Nation...[Details]
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Today, people are more concerned than ever about fossil fuel emissions and environmental issues caused by traditional power generation and renewable energy. Among renewable resources, solar panels and...[Details]
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According to Bloomberg, AT&T and Verizon in the United States revealed that the mobile phone upgrade rate of the two operators has dropped to an all-time low, and the number of existing users upgradi...[Details]
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#include
#define TLEDS 20 // Duration of each pattern state, in units of 50mS
#define NUM_OF_LED_S 4 // Number of LED patterns in each mode
typedef unsigned char uchar;
typedef unsigned int uin...[Details]
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When using a conventional 10:1 oscilloscope probe to measure digital devices, the main factor that degrades performance is the self-inductance of the ground lead. The manufacturer's probe performance ...[Details]
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Non-contact temperature sensor, also known as infrared temperature sensor, is a sensor that determines the temperature of an object by measuring the infrared radiation emitted from the surface of t...[Details]
RF/Wirelessly
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