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As shown in the figure below, P1.0 - P1.3 of the AT89S51 microcontroller are connected to four LEDs L1 - L4, and P1.4 - P1.7 are connected to four switches K1 - K4. The programming reflects the state...[Details]
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u-blox has announced that its proprietary multi-band LTE-M/NB-IoT chipset, UBX-R5, has been certified by the Global Certification Forum (GCF). The company said that this is the first IoT chipset to b...[Details]
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When applying non-destructive testing, you must first fully understand and recognize the following aspects:
1. Nondestructive testing and destructive testing
Nondestructive testing is a testing meth...[Details]
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Semiconductors, which are essential in automobile production, are facing an increasingly serious shortage of supply. Semiconductors are indispensable components in the process of automobile electrifi...[Details]
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PLC instructions are the instruction set of a programmable logic controller (PLC), also known as PLC programming instructions. These instructions are the basic building blocks for writing and contr...[Details]
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We often see different expressions such as ARM7, ARM9, ARM11, and armv6k. And in GCC compilation, we often use -march, -mcpu, etc. What do they mean? Sam himself is not very clear, but he has a vague...[Details]
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On September 15, the US ban on Huawei's chip supply chain officially came into effect. The ban stipulates that chip manufacturers using US equipment, software and designs are prohibited from shipping...[Details]
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On December 22, the "China Integrated Circuit Design Industry 2021 Annual Conference and Wuxi Integrated Circuit Industry Innovation and Development Summit Forum (ICCAD 2021)" was jointly sponsored b...[Details]
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The pursuit of longer operating time for portable products has led to fuel cells becoming a new power source in the field of terminal equipment. However, there are still many challenges in "using fuel...[Details]
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Many electronic designers know the role of filter capacitors in power supplies, but the filter capacitors used at the output end of switching power supplies are not the same as those used in indu...[Details]
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Qualcomm Launches Powerful Portfolio of Leading IoT Solutions Built to Drive Digital Transformation Across Industries Worldwide Next-generation solutions from entry-level to premium offering advan...[Details]
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Less than two years ago, the scientific community was stunned by the discovery of a material that could achieve room-temperature superconductivity. Now, a team of physicists at the University of Ne...[Details]
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1Written in front The previous article " EWSTM8 Series Tutorial 08_IDE Option Configuration (Part 1) " describes the contents of the first five items in the IDE options (Common Fonts, Key Bindings, ...[Details]
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4 data bits can attenuate 0~15DB programmable attenuator
Function of the circuit
Most electronic devices usually require variable gain amplifiers. At low frequencies, a variable gain amplifier...[Details]
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On October 23, preliminary survey data from the Gaogong Industry Research Institute of Lithium Battery (GGII) showed that China's lithium battery shipments in the first three quarters of 2024 were ...[Details]