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March 28th is the "Earth Hour" event day. The Guangdong Power Grid Company of the State Grid Corporation of China specially set up a special "Sound Library" on that day, sincerely inviting netizens...[Details]
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The high-voltage board
circuit is a DC/AC (direct current/alternating current)
converter
, and its working process is
the inversion process of
the switching
power supply
...[Details]
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This code uses Proteus simulation, uses 51 single-chip microcomputer to simulate PWM, uses timer to obtain motor speed information, uses PID algorithm to control speed, speed, P, I, D can be set wi...[Details]
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I have been debugging the driver of AT91RM9200+pcf8563 under linux2.6.20 these two days. I would like to record my debugging process and experience. The pcf8563 driver is already available in the l...[Details]
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Use the timer 0 of LPC1788 to implement a 10ms counter, that is, the count increases by 1 every 10ms. Initialize timer 0 init_timer(1,599990); //10ms unit 599990=10(60000000/1000-1), LPC1788 wor...[Details]
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1. 485 interface principle 2. 485 circuit chip SP3485 Generally, pins 2 and 3 are connected together. When pins 2 and 3 are at a low level, the RO terminal is enabled, and when pins 2 and...[Details]
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Recently, the General Administration of Quality Supervision, Inspection and Quarantine announced the results of the national supervision and random inspection of the quality of the third batch of p...[Details]
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/*AVR timer 1CTC mode A experiment*/ #include iom16v.h #define uchar unsigned char #define uint unsigned int #define set_bit(a,b) a|=(1 b) #define clr_bit(a,b) a&=(1 b) #define get_bit(a,b) a&(1 b)...[Details]
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When the main power supply is off, the circuit automatically switches the battery in through the relay to power the device. When the main power supply is normal, the battery is charged in different ...[Details]
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1 Introduction
The low-voltage power supply composed of lithium-ion power batteries is a key device in the underwater robot system. Improper maintenance and management of lithium-ion batteries ...[Details]
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There are many smart door lock products on the market today, with prices ranging from a few hundred yuan to several thousand yuan. There are many reasons for the price difference of smart door locks,...[Details]
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Introduction: The improved marking machine control system based on ATmegal6 and CH341T greatly relieves the workload of the PC; the phase-frequency correction PWM mode based on ATmegal6 can be used t...[Details]
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On January 9, USI released its December 2021 operating income report. The company's consolidated operating income in December 2021 was RMB 6.637 billion, an increase of 11.59% from the consolidated o...[Details]
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NVIDIA Releases Preliminary Second Quarter Fiscal 2023 Financial Results Preliminary second quarter revenue of $6.70 billion versus outlook of $8.10 billion The main reason for the lower-than-exp...[Details]
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As electronic products continue to miniaturize and integrate functions, the limitations of traditional discrete logic devices are becoming increasingly apparent. Texas Instruments (TI) recently rel...[Details]
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