What is the function of the cross-connection of the five tubes in the middle of this comparator? The test shows that it is a falling edge trigger. Where is the falling edge trigger? Please help. It wo...
It’s still Xiaobai’s problem.
When learning micropython, I came across pyb.delay and time.sleep, both of which can achieve delay. What is the difference between them, or what impact do they have on th...
In the above figure, the red dotted line is the current on the motor phase line, and the blue line is the voltage on the phase line. The current probes from Tektronix and Keysight are too expensive an...
With the basic use of GPIO port, in addition to driving the OLED screen, it can also be used to drive the corresponding digital sensor. Here, the light intensity sensor is driven, and the display func...
1. Post-Moore's Law Era In 1965, Gordon Moore, one of the founders of Intel, speculated that when the price remains unchanged, the number of components that can be accommodated on an integrated circu...[Details]
Classification of stepper motors
Stepper motors can be classified according to different standards, such as rotor structure, control method, electrical characteristics, etc. The following are ...[Details]
1. Cross-compile libjpeg In order to enable OpenCV to process jpeg images, we must cross-compile libjpeg in advance. The version used here is jpegsrc.v6b. Download address: https://sourceforge.net/pr...[Details]
Beijing time, June 21st, former Google CEO Eric Schmidt wrote in an opinion article published on Monday that for national security reasons, the United States should do more to attract overseas chip m...[Details]
According to foreign media reports, automotive technology company Veoneer, Inc. announced that it has begun mass production of its fourth-generation thermal imaging sensor technology, Night Vision. T...[Details]
Automatic cigarette lighter circuit principle
The circuit working principle of the device is shown in the figure below. Normally, the light of the infrared light-emitting tube VD1 directly shines...[Details]
Apple today released the second beta of iOS 15.6 and iPadOS 15.6 to developers for testing purposes. Developers can download iOS 15.6 and iPadOS 15.6 through the Apple Developer Center or via OTA aft...[Details]
I. Basic concepts of temperature measurement
1. Definition of temperature:
Temperature is a physical quantity that characterizes the degree of hotness or coldness of an object. Temperature can only ...[Details]
Corefree Semiconductor, a leading company in the domestic EDA and filter industry, recently successfully held its 2021 National User Conference in Shanghai. This conference, co-organized by the Shang...[Details]
In the structure of lithium battery
, the diaphragm is one of the key inner components.
The performance of
lithium-ion battery
diaphragm determines
the interface structure and interna...[Details]
Recently, Alibaba Cloud disclosed that in 2019, Alibaba Cloud achieved operating income of 40 billion yuan, a year-on-year increase of 62%. In 6 years, Alibaba Cloud has grown 31 times. The latest va...[Details]
In 2020, my country announced that it would strive to achieve carbon peak by 2030 and carbon neutrality by 2060. Under the background of the "dual carbon" strategy, the new energy industry has ushe...[Details]
Samsung has pushed a software update to the Galaxy Watch 3, bringing it a handwashing mode and support for SmartThings Find. SmartThings Find is a feature that helps users find lost Samsung G...[Details]
I have used Qemu to run/debug arm linux several times, but I forgot about it after a while. I had to look up the information again every time, which wasted a lot of time. This time I made the whole...[Details]