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When debugging the code on the development board, PA9 on the development board is a floating input. When mounting the chip, our board uses this pin and sets it to GPIO_MODE_OUTPUT_PP. The problem t...[Details]
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In September, students have welcomed the start of the school year, and epidemic prevention and control has become a key daily task for schools. Orion Star has joined forces with multiple schools to...[Details]
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Figure 1 Three-phase half-wave/single-phase load AC/AC conversion circuit
Figure 2 Voltage waveform with resistive load
Taking the three-phase to single-phase direct frequency conversion ...[Details]
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(November 17, 2021, Shenzhen, China) Recently, OPPO officially released a new smartwatch, OPPO Watch Free, equipped with an OLED display driver chip from Beijing Chipone Technology Co., Ltd. ("Chip...[Details]
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Electricity is the most important form of
energy
in human production and life
. The rational, efficient, accurate and convenient use of electricity is still a major problem facing mankind.
...[Details]
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1. When using STM8L, the Rx interrupt and IDLE interrupt flags cannot be read at the same time. Finally, DMA is used to get data, see (3. DMA to implement data copy): 1.1 uart configuration void ...[Details]
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Working principle: The power supply circuit is simple. It uses transformer T to reduce the mains voltage of 220V to 30V. The low voltage is rectified by D1~D4 and then filtered by large-capa...[Details]
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Luke, a reader of foreign technology media Electrek, deeply modified a very practical cargo solar electric vehicle during the epidemic, replacing the family car to meet his daily travel needs. Firs...[Details]
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Jiwei.com reported that according to Bloomberg, new research shows that chip delivery times are shortening, but shortages in many areas still exist. According to research by Susquehanna Financial Gro...[Details]
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The latest version of the WiMAX standard can provide the mobile services that users need to move freely. Of course, as with any new technology, there is a need for hardware testing, both in t...[Details]
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At present, the Beidou system has achieved industrial breakthroughs and leapfrog development in five major areas, including the automotive OEM market, smart phones, and high-precision applications....[Details]
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The camera shutter determines how and when light is recorded during each exposure. Today, FILIER will introduce to you how Sony Pregius series global shutter CMOS sensors provide clear and distorti...[Details]
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Recently, a colleague of mine encountered a problem when taking a private job. He could use Keil-5 to open the project given by the client, but there were errors in simulation and downloading. Accord...[Details]
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With the rapid growth and emergence of portable devices such as tablets and smartphones, it is becoming increasingly difficult to implement battery management to achieve higher performance of batte...[Details]
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1. The development environment of PIC microcontroller is MPLAB, which can be downloaded from the Microchip website (http://www.microchip.com); this development environment comes with an assembler comp...[Details]