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The Linux system environment was built according to the tutorial of Friendly Arms
//Hello World driver source file
1 #include linux/miscdevice.h
2 #include linux/delay.h...[Details]
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1. There are many cases of dot matrix digital hybrid LED screen (display) failure, which are summarized as follows:
a. The entire LED display screen is shaking and flickering. The reason is th...[Details]
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Shanghai Chushan Electronic Technology Co., Ltd. (hereinafter referred to as "Chushan Innovation") announced that it has obtained a total of tens of millions of RMB in Pre-A+ and A rounds of financin...[Details]
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Overview of turbine flowmeter :
As a velocity flow measurement instrument, turbine flowmeter has been widely used in industrial production. Its characteristic is that it can be used to measure the v...[Details]
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Linear Technology Corporation introduces the LT3048 , a step-up DC/DC converter with an integrated LDO output that provides a low noise, low ripple 15V bias supply . The LT3048-15 provid...[Details]
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The 5G wave, artificial intelligence, and the Internet of Everything are accelerating the formation of a borderless smart life circle. With the huge number of personal privacy, cloud services, big da...[Details]
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At noon today (21), a digital blogger @Xiaomi Vice President Lu Weibing asked: Has the Mi 10 sold over one million units in China? Lu Weibing replied: It has already passed. Xiaomi 10 was officiall...[Details]
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After the official release of Apple's iPhone 13 series, news about the next generation of iPhones has been increasing. Recently, the source Waqar Khan also released a rendering of the appearance of t...[Details]
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Friends who have worked on products all have experienced this: a design may seem simple, and the hardware design and code writing can be completed quickly, but there are more or less unexpected eve...[Details]
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(Image source: Freelancer.com) Apple has held talks with at least four companies to find suppliers of next-generation lidar sensors for self-driving cars, three people familiar with the matter said,...[Details]
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For a long time, automobile power batteries have had several major problems that have been criticized by people. The first is that the battery life on a single charge is not long enough, the second i...[Details]
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Tianyancha data shows that recently, FAW Group established FAW (Nanjing) Technology Development Co., Ltd. with a registered capital of 50 million yuan. FAW (Nanjing) Technology Development Co.,...[Details]
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The electromagnetic compatibility (EMC) of a switching power supply refers to the switching power supply, power adapter or power transformer not reducing its performance index due to electromagnetic ...[Details]
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adc.h #ifndef __ADC_H_ #define __ADC_H_ #include “define.h” //ADC channel number definition #define ADC_Channel0 (unsigned char)0x00 #define ADC_Channel1 (unsigned char)0x01 #define ADC_Channel2 (u...[Details]
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Check whether the high-voltage circuit is normal. If the low-voltage circuit is normal but charging still cannot be completed, check the high-voltage circuits between the charging cable, slow-charg...[Details]
Embedded System
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