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1 Introduction With the development of society, electricity consumption has increased. In order to improve electricity efficiency and improve the imbalance of electricity consumption, power departmen...[Details]
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This is the prototype of my car, which is not yet completed. I have been stuck on the servo control part, but I finally got it done today. Next, I will talk about all the parts I paid attention to an...[Details]
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According to the reminder of netizen "intech2008", in the serial port receiving program in Sections 40, 44, and 45 that I published previously, there is a bug that is not easy to find in the calculati...[Details]
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In today's competitive battery-powered market, designers often use double-sided boards due to cost constraints. Although multi-layer boards (4-, 6-, and 8-layer) have obvious advantages in size, noise...[Details]
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Recently, the U.S. Department of Defense announced a $65 million "brain chip" plan, hoping that researchers will develop a brain-computer interface that allows the human brain to directly connect to ...[Details]
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Recently, according to the guidance filing information disclosed by the Shenzhen Regulatory Bureau, Shenzhen Yuntian Lifei Technology Co., Ltd. (hereinafter referred to as Yuntian Lifei) plans to iss...[Details]
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Li Ye pointed out that it is necessary to strengthen the guidance of emerging technologies such as energy internet, smart grid, power storage, hydrogen energy, etc. Establish and improve the techni...[Details]
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Pin Name ATmega32 Pin Function Description VCC Power positive GND Power Ground Port A (PA7..PA0) Port A is used as the analog input of the A/D converter. Port A is an 8-bit bidirectional I/O port...[Details]
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introduce
Autoclave testing, also known as pressure cooker testing, is a quality test commonly required for devices used in harsh environments. Only recently has the automotive safety industry begu...[Details]
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1 Introduction
LED display technology has evolved from monochrome displays in the early 1980s, to dual-primary-color displays in the late 1980s, to three-primary-color (full-color) displays in...[Details]
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Current probes are essential accessories for oscilloscopes to measure current, but the prices of different brands often vary greatly. What kind of current probe is reliable? Here we share the compl...[Details]
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50ms delay; the program in the general book
DEL: MOV R7,#200
LO: MOV R6,#123
NOP
L1: DJNZ R6,L1
DJNZ R7,L0
RET
But this program actually delays 50.001ms, one more machine cycle.
In...[Details]
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First, let's introduce the prerequisite knowledge
ARM7 uses a three-stage pipeline
(1) Fetch:
The task of the fetch stage is to read instructions from the program memory.
(2) Decode:
The decode s...[Details]
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Power Subsystem for Photoplethysmography (PPG) Remote Patient Vital Signs Monitor - Part 2 Summary This two-part article describes a proven switch-mode power supply circuit design for remote pa...[Details]
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At 6:10 a.m. on October 28, the Alxa Power Supply Company of the Inner Mongolia Electric Power Group organized the planned grid connection and off-grid maintenance of the Ejina "source-grid-load-st...[Details]
Discrete Device
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