What does the outer diameter of the MULTI-LAYER color ring mean? The blue color ring is the drill hole, and the drill hole size is the inner diameter. The gray color ring is the outer diameter. What d...
2019 is almost halfway through, and tomorrow will be the time for many students to become famous. Looking back on my senior year of high school, I was both excited and nervous. I was excited because I...
Longmen Grottoes are located in the Yique Gorge, 6 kilometers south of Luoyang City. Because it is located in the south of the capital, the ancient emperors called themselves "the true dragon emperor"...
PrefaceAfterthe release of Bluetooth 5 protocol, Nordic took the lead in launching the chip nrf52840 that supports ble5.0 protocol. The powerful configuration is simply outrageous for me who has used ...
I browsed around on Taobao but couldn't find it. The input is a 5V USB plug, and the output is 2 wires (or terminals) of 1.5V. It's not hard to make it yourself, but I don't want to work hard....
This article mainly introduces the high-voltage diode of microwave oven, and focuses on the detection and principle of high-voltage diode. diode Diode, (English: Diode), is an electronic compon...[Details]
As one of the most common control systems in our lives, Zhishi Classroom has explained the application, characteristics and classification of stepper motors. Friends must be curious about how stepp...[Details]
For future iPhones, iPads, and MacBooks, Apple plans to use smaller internal components to increase the size of the device's batteries, according to DigiTimes. Apple plans to "substantially increase"...[Details]
The efficiency of white LEDs
is increasing at a rapid rate. In 2004, engineers were proud to report that
the power
at 350 mA
was almost 60 lm/W, but today the research record is o...[Details]
Although the latest Navigate on Autopilot has just been criticized by Consumer Reports for its poor performance, Tesla has recently applied for a new patent titled "System and Method for Handling Err...[Details]
AC electrolytic capacitors or polypropylene and polyester capacitors used to start single-phase asynchronous motors. The single-phase current flowing through a single-phase motor cannot generate a ...[Details]
Watchdog, this thing can be seen everywhere, a brief introduction to it is in my other blog post, that is about arm11, but it is basically the same http://blog.csdn.net/king_bingge/article/details/85...[Details]
In 2021, Xiaomi, which just took the second place in global smartphone shipments, has surpassed Apple and now seems to be only 2 percentage points behind Samsung, the world's number one. But at prese...[Details]
0 Introduction
Wireless sensor networks are networks composed of multiple nodes with sensors, data processing units and communication modules. They have become a research hotspot in recent years be...[Details]
Fault phenomenon The instrument cannot be turned on due to abnormal startup Testing process After testing, it was found that the logic unit of the instrument control board was damaged, causing abnorm...[Details]
Today, Xiaomi's Redmi product director Wang Teng showed off a new phone - Redmi Note 11, which means that this new phone will be released soon. Previously, blogger @数码闲聊站 revealed that the hi...[Details]
This work realizes the car to automatically follow the track, stop at the station and announce the station by voice, and send the speed and other information to the platform through the wireless modul...[Details]
LED dot matrix blocks have the advantages of high brightness, uniform light emission, good reliability, and easy assembly, and can form display screens of various sizes. At present, LED display scre...[Details]
The intelligent soft start cabinet is an electrical device used to control the start and stop of the motor. It controls the starting current and voltage of the motor to achieve smooth start and sof...[Details]
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