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Why do you need a breathalyser? According to statistics, about 50% of car accidents in the world are related to drinking. If we want to increase the punishment for drunk driving, the first thing ...[Details]
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In the blog post "Using the digital oscilloscope DS6104 to measure the amplitude and phase of AC signals", the use of an oscilloscope to measure the amplitude and phase of a sinusoidal AC signal was ...[Details]
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The calibrated on-chip RC oscillator provides a fixed 1.0, 2.0, 4.0, or 8.0 MHz clock. These frequencies are nominal at 5V, 25°C. This clock can also be used as the system clock by programming the CK...[Details]
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Speakers can be connected in series or in parallel. They can also be connected in series and then in parallel. The purpose of connecting speakers in series and in parallel is to get the required i...[Details]
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Small-sized LCD display modules have long been an important part of handheld digital products. As consumers' visual requirements increase, the design of LCD display modules has become increasi...[Details]
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Engadget praised the iPhone 11's affordable $699 price, CNBC said Apple's portrait mode was the best, and HardwareZone said the A13 Bionic chip "beats the competition by a wide margin." Altho...[Details]
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Instrument stepper motor
A stepper motor is an open-loop control element that converts an electrical pulse signal into an angular displacement or a linear displacement. In the case of non-overl...[Details]
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Jiwei.com reported that a "independence trend" in the semiconductor industry is sweeping the world. Major countries including the European Union, the United States, China, South Korea, and Japan have...[Details]
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Since I started learning embedded development, I have been using Linux as a learning platform. Now, both PC and ARM development board can run Linux smoothly, but I still don’t know much about the Li...[Details]
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Just like a screen in your hand, but full of wisdom, this is a scene that has appeared in many science fiction movies. In 2017, we gradually saw the possibility of realizing this vision, and almost...[Details]
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A more complete CH340 and CH341 application notes CH340 In the past, when using USB to serial port, people usually bought ready-made USB to serial port modules for convenience. However, due to later ...[Details]
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Recently, I made a digital voltmeter. The circuit supports AC or DC voltage display. The software supports seven different full-scale gears, which can be switched freely. It has functions such as a...[Details]
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Nowadays, the use of virtual instrument technology in test applications has become mainstream. Most of the test industry has accepted the concept of virtual instrument technology or tends to adopt vir...[Details]
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Samsung has previously launched a number of foldable smartphones and is also the first company to develop a 108MP mobile camera sensor. Now, a newly released patent reveals that Samsung is using...[Details]
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With the continuous development of integrated circuit technology, high-performance operational amplifiers are widely used in various circuit systems such as high-speed analog-to-digital converters (A...[Details]