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1. Hardware Solution This system consists of STC89C52 single-chip microcomputer, 44 matrix keyboard, buzzer, reset circuit and crystal oscillator circuit, relay, etc. The 44 keyboard is mainly used f...[Details]
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Access control, also known as access control system, is a digital management system for managing people's access. At present, with the development of industrial automation and people's increasing d...[Details]
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Renesas Electronics Corporation, a premier supplier of advanced semiconductor solutions, announced that Casio Computer Co., Ltd. ("Casio") has adopted Renesas' ultra-low power RE Family controller as...[Details]
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The threaded steel diameter gauge is a measuring instrument that can measure the inner diameter, transverse rib outer diameter and longitudinal rib outer diameter of ribbed steel bars (threaded steel...[Details]
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Description: Use ADC to continuously collect 11 analog signals and transfer them to memory through DMA. ADC is configured to scan and continuously convert mode, and the ADC clock is configured to 12M...[Details]
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Electronic scales are a type of weighing instrument. With the development and progress of science and technology, electronic scales have gone through a fully electronic weighing process from simple...[Details]
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(April 20, 2021, Shanghai, China) On April 16, the "2021 United Nations Industrial Development Organization Theme Day" (UNIDO Day 2021) was successfully held at the Shanghai World Expo Exhibition and...[Details]
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The Apple Watch Series 6 was announced yesterday, bringing with it a host of much-needed new improvements. The Apple Watch Series 6 does include a lot of hardware upgrades. But one detail that was ...[Details]
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The access control system adopts a modular design concept. The card reader control module controls each other with the RS485 bus structure, and then can be directly connected to the main control co...[Details]
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OmniVision launches 12.6V 7A fully integrated synchronous boost converter WD31089Q to help upgrade the experience of Bluetooth speakers In a busy life, some music can adjust the atmosphere. Portabl...[Details]
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According to foreign media reports, cameras are gradually becoming the main visual organs of vehicles, and the surround view system including several satellite cameras can provide the vehicle with a ...[Details]
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After months of attempts, the FBI has successfully unlocked the iPhone of Alshamrani, the gunman involved in a shooting at a US military base, whom the US claims has links to the terrorist orga...[Details]
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I often encounter some annoying pseudo instructions starting with ".", such as .globl _start .balign .align .data .text, etc. The most annoying one is as follows: _undefined_instruction: .word undefi...[Details]
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在发表于美国化学学会（ACS）《能源快报》上的一篇文章中，哈佛大学约翰·A·保尔森工程与应用科学学院（SEAS）的研究人员，介绍了他们开发的一套新型液流电池。通过将能量储存在中性酸碱（pH）的有机溶剂中，这种无毒、无腐蚀性的电池不仅具有极长的使用寿命，且有望显著降低成本。 The research, led by professors of chemistry and energy mat...[Details]
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Audi uses NXP’s Trimension NCJ29Dx series of ultra-wideband (UWB) precision ranging ICs to enhance the smart, touchless digital key capabilities of its new premium electric platform (PPE)
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Microcontroller MCU
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