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The medical call system is a calling tool for patients to make requests when they need care or diagnosis. It can quickly convey the patient's request to the doctor or nurse on duty. It is one of the ...[Details]
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Buzzers are divided into piezoelectric buzzers and electromagnetic buzzers based on their structure. Piezoelectric buzzers use piezoelectric ceramics to make sounds, and the current is relatively sma...[Details]
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According to Lawstreet, the California Institute of Technology recently filed a lawsuit against Dell Technologies and Dell Inc. (collectively referred to as "Dell") in the U.S. District Court for the...[Details]
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The external interrupt and timer (internal interrupt) of 51 have a common feature, that is, they work in parallel with the main program. That is, when the main program is running, the interrupt is al...[Details]
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In 2010, global mobile data consumption increased by 2.6 times. This is the third consecutive year that mobile data usage has increased by nearly 3 times. By 2015, global mobile data traffic is expec...[Details]
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The MagSafe charger works with the iPhone 12 to charge at a maximum of 15W. Technically, the MagSafe charger is compatible with older iPhones, but it should be noted that the charging speeds for no...[Details]
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Jiwei.com reports that we have gone through 2020 with the global spread of the COVID-19 pandemic and the uncertain changes in the international trade situation. What is exciting is that driven by the...[Details]
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The previous article mainly talked about the module loading and unloading functions of the touch screen device as a platform device in Linux, as well as the corresponding probe function and remove fu...[Details]
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Introduction Vehicle Tracking Systems (VTS) are commonly installed in cars and trucks. VTS uses technologies such as the Global Positioning System (GPS) to provide real-time information about the ...[Details]
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LED PWM Controllers Overview LED controller (LEDC) is mainly used to control LEDs, and can also generate PWM signals for controlling other devices. The controller has 8 channels and can generate inde...[Details]
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On January 1 this year, Smartisan launched a pair of true wireless Bluetooth earphones, priced at 249 yuan, and the new product only costs 199 yuan. At that time, there was only a white mode...[Details]
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Online testing technology has important practical significance in overcoming the cumbersomeness and inefficiency of traditional off-line testing and improving the maintenance quality of modern elec...[Details]
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It is reported that Luxshare Precision and Goertek's stock prices have been relatively weak due to the expected decline in TWS headphones. On the one hand, the previous downward adjustment of TWS hea...[Details]
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The timer function of STM32 is very powerful, but it is also very difficult to learn.
Actually, the manual is quite comprehensive, but the functions of TIMER are too complicated, so it seems difficul...[Details]
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Recently, the domestic programming language MoonBit launched its native backend, which enables MoonBit to be compiled directly into machine code and run on hardware without relying on a virtual mac...[Details]
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