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Infrared (IR) digital thermometers have replaced traditional mercury thermometers due to their speed, accuracy, efficiency and cost advantages. Ear digital thermometers use a thermopile sensor to m...[Details]
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As one of the most important components in a switching power supply, the switch tube is also the top priority in power supply debugging. The switch tube's turn-off and turn-on action is actually a re...[Details]
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Under the condition that the circuit parameters remain unchanged, the switching frequency is related to the hysteresis width △iL. Therefore, as long as frequency negative feedback is introduced and t...[Details]
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It is a dot matrix LCD module specially used to display letters, numbers and symbols. It is composed of several 5x7 or 5x10 dot matrix character positions. Pinout Timing Steps Initialize write com...[Details]
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On the eve of MWC Shanghai 2021, Huawei and industry partners jointly held a pre-release conference for the industry's first systematic monograph on 5G-enabled industries - How 5GtoB Enables Thousand...[Details]
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If you get a chip and want to use it, you must first know how to connect it. The chip we use is called 89S52. Let's see how to connect it.
1. Power supply: This is of course essential. The micro...[Details]
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The SRS5000 series high-voltage differential probe adopts differential input mode and is mainly used in places where high-voltage floating measurements are required. The probe has good common-mode ...[Details]
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The parallel P2 port of the MCS-51 series microcontroller also has two functions. For microcontrollers with internal program memory (such as customized 8051), the P2 port can be used as an input port...[Details]
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1 Characteristics and requirements of LED street light distribution
1 LED street light distribution shape characteristics
In road lighting, if the LED street light source is ...[Details]
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The conventional microcontroller running program is as follows: while（1） { ..... } It is similar to a sequential execution method, which is relatively rigid in execution. Once an error occurs in a c...[Details]
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For ARM, the heap grows upwards and the stack grows downwards.
Local variables occupy stack space.
Memory dynamically allocated in the program, such as malloc() and new functions, occupy hea...[Details]
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The company's wholly-owned subsidiary Pangang Group Chengdu Vanadium Titanium Resources Development Co., Ltd. (hereinafter referred to as "Chengdu Vanadium Titanium Trading") and Dalian Rongke rece...[Details]
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Zuosi Auto R&D released the "2023-2024 Huawei Automobile New Four Modernizations Layout Analysis Report and the New Automobile New Four Modernizations Weekly Observation March Issue 1". The " 2023 I...[Details]
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According to CCTV News, in response to the US Trade Representative Office's announcement that it would impose a 10% tariff on about $300 billion worth of Chinese imports, a relevant person in charge ...[Details]
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Nokia Mobile China will hold an event on December 7, and according to the poster, the product released on that day is the Nokia BH-405 true wireless headset. The name may not sound familiar, but it i...[Details]
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