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The article is reproduced from http://blog.csdn.net/charmingsun/article/details/52095563. For the use of software and other preparations, please refer to: Getting Started Tutorial Using HAL Library, ...[Details]

     1. Li+ battery protection circuit     Although lithium-ion (Li+) batteries have many advantages such as high energy density, long service life, no memory effect, low self-discharge, and high...[Details]

1. When developing on STVD, Build prompts bad struct/union operand   This is because the project file is too large. The problem can be solved by deleting the unused header files and source files. ...[Details]

Researchers have developed an efficient new method to recover gold from electronic waste using graphene, without the need for any other chemicals or energy, New Atlas reports. In addition to its ...[Details]

Following the exposure in the middle of this month, another reliable source, Sonny Dickson, issued the latest tweet, sharing clearer photos of Apple’s first AR/VR headset parts. The high-r...[Details]

On August 30, Zhang Qinghong, deputy secretary of the Party Working Committee of Changsha Economic and Technological Development Zone, Zhang Xianghong, member of the Party Working Committee, and Wu...[Details]

Currently on the market White light LED production technology is mainly divided into two mainstreams: The first is to use phosphor to convert the blue light or ultraviolet light ...[Details]

　　In places with 220 V AC power supply, various microwave ovens available on the market can be used. However, in places without AC power supply, to use a microwave oven, a high-power DC/AC inverter i...[Details]

1.＃i nclude<> means to go to the editor setting directory, ＃i nclude "" means to go to the current project directory. 2. To call a function in another file, put the function file in the current proje...[Details]

1. At this point, main.c is empty and is copied from the built project (taking GPIO as an example)   2. Click: Make   3. Save the Workspace (Note: the save type is *.eww, which is the workspac...[Details]

principle: There is something wrong with his diagram. Don’t be misled. For example, if I display an arrow and follow this schematic diagram, then the straight line in the middle is 0xff, indicating...[Details]

Although the traditional analog oscilloscope has comprehensive functions, it is expensive, large in size, heavy in weight, and high in cost, which limits its application. For most students and teachi...[Details]

In 1956, Engelberg and George Devol invented the first true robot, the UNImate, which could perform system tasks stored in a magnetic drum memory. By 1961, the Unimate was successfully used to transpo...[Details]

vmalloc vmalloc_init for_each_possible_cpu(i) { // Linked list of vfree_deferred type variables and work task free_work // free_work is used to delay the asynchronous release of vmalloc memor...[Details]

On October 31, with the official commissioning of the newly expanded 220 kV Keke Line 258 interval of the Hohhot Power Supply Company of the Inner Mongolia Electric Power Group, the Hohhot Kezhen 100 ...[Details]