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This color light controller can control five colored lights to light up row by row, and then turn off row by row. Then, by combining a certain number of colored lights, you can create a colorful sc...[Details]
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Thank you for your enthusiastic participation in last week's interactive session. The correct answer to last week's question is: approximately equal to 6ms (1/166s-40ns*10= 0.00602s). That is, every ...[Details]
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Host system: Ubuntu 11.04
Kernel version: Linux Kernel 2.6.39
Hardware platform: FL2440
Development board system: Linux Kernel 2.6.28
The following is the CPU polling method to determine the ...[Details]
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TE Connectivity (TE), a global leader in connectivity and sensing, will showcase its newly upgraded smart factory connectivity solutions and innovative technologies at the 2019 China International In...[Details]
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测量时首先要把太阳能电池板清理干净,放到阳光充足的地方正对着太阳,而且不能有仼何阴影投射在板面上。然后把万用表拨至DC一200V档即可测到开路电压值。然后把档位換成DC一20A的电流档,测量方法同上,就可以得到短路电流值。但这种测短路电流的方法仅限于太阳能电池板,其它电源或电池绝对不能用电流表直接测,否则有可能烧毁电源或仪表。 Since the internal resistance of...[Details]
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1. Experimental purpose: Learn how timers/counters work and master programming methods. 2. Experimental equipment: One PC computer and one Dais-52PRO+ experimental system. 3. Experimental conte...[Details]
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Power amplifier, referred to as "power amplifier". In many cases, the rated output power of the host is not enough to drive the entire audio system. At this time, a power amplifier must be installe...[Details]
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DC-DC
switching
The job of a converter is to efficiently convert one DC voltage to another. High-efficiency DC-DC converters use three basic technologies: buck, boost, and buck/boost. Buck ...[Details]
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After setting SDRAM according to the reprinted (four sequences) and modifying uboot.lds, the program stops running when it reaches memset. There is no solution. Pause. This should be a problem with t...[Details]
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External interrupt 0 or 1 is essentially the same, only EX and IT are changed to 0 or 1.
Q: So the question is: Why do we have two very similar external interrupts 0 or 1?
A: When there a...[Details]
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On June 16, the "OFweek 2022 Lithium Battery (Power & Consumption) Industry Conference and Veken Cup Annual Awards Ceremony" hosted by China's high-tech industry portal OFweek and organized by Veken ...[Details]
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When the application is running, it cannot feel other processes. When the application is running, there are three situations 1. User space execution instructions 2. An exception occurs and the ke...[Details]
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Recently, overseas institutions have reported that Apple's new phone has seen the first wave of order cuts, which will affect Apple's shipments in the first half of 2021 and have an impact on TSMC's ...[Details]
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C language program using DS18B20 temperature sensor in single chip microcomputer (reference 1)
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introduction
Data acquisition technology is a comprehensive technology based on high technologies such as front-end analog signal processing, digitization, digital signal processing and co...[Details]