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Spectroscopy is a powerful technique for identifying and characterizing physical substances through changes in the amount of light absorbed or emitted at different wavelengths. Spectroscopy requires ...[Details]
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This example describes a white LED flashlight that fits in an empty glue stick tube and has a long battery charge life. The circuit consists of only a few common parts. This flashlight has proven to b...[Details]
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It is reported that an article titled "The entire company's business policy must shift from pursuing scale to pursuing profits and cash flow" was posted online on Huawei's internal forum on the after...[Details]
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Toyota originally planned to launch its solid-state battery-powered prototype at the 2020 Tokyo Olympics, which has since been postponed to 2021 due to the impact of the global pneumonia. Keiji Kaita...[Details]
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When Google's next-generation operating system, Android 10, was just released, Unisoc immediately announced that it had taken the lead in deploying Google's latest operating system on smartphone mobi...[Details]
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Task: Utilize the 4-channel PCA of STC12C5410AD to expand 4-channel external interrupts; use the 4-channel external interrupts to count the input pulse sequence. Remark: The engineering files i...[Details]
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As power converters become more common, electronic equipment manufacturers are demanding new features and functions from their power systems, such as lower input and output voltages, higher cu...[Details]
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This is a simplified diagram of the internal functions of a portable media player (PMP). Today's portable products include a wide variety of audio, video and wireless communication p...[Details]
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On March 14, Luxshare Precision released its 2021 annual performance report. In 2021, Luxshare Precision achieved operating income of 154.106 billion yuan, a year-on-year increase of 66.60%; net prof...[Details]
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China Broadcasting Network Co., Ltd. (CBN) and Qualcomm Technologies, Inc. announced that they have successfully completed the world's first 2x30MHz wide bandwidth 5G data call in the 700MHz (n28) FD...[Details]
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In the ARM instruction set, LDR is usually used as a load instruction, but it can also be used as a pseudo-instruction.
The form of the LDR pseudo-instruction is "LDR Rn,=expr". The following example...[Details]
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In the new era of high-quality development, China's strategic emerging industries provide new development opportunities for foreign-funded enterprises, and those companies that have been deeply invol...[Details]
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STMicroelectronics has a strong portfolio of products for motor control applications. Smooth operation and high efficiency drive the development of motor control. The development of field-oriented co...[Details]
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Motorola's first 5G foldable screen mobile phone Razr 5G was officially released in the United States, priced at US$1,399 (approximately RMB 9,600). It is reported that the Motorola Razr 5G continu...[Details]
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1. Steps to write ts driver (beginners can just take a look at it, the content is a bit confusing)
1. Copy the header file;
2. Write entry and exit functions
3. All...[Details]
Microcontroller MCU
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