[i=s] This post was last edited by 蓝天白云秋高气爽 on 2022-1-5 12:04[/i]Do a small project on the "ESP32 Development Board IOT Bluetooth WIFI Misiqi": use this development board to intercept the input signal...
[align=left]My colleague said that this is a circuit to prevent the MCU from hanging up. Fan_Ctrl is the signal from the microcontroller, C is the DC blocking capacitor, Fan_Ctrler is the signal sent ...
[i=s]This post was last edited by kikiwu on 2019-3-8 11:48[/i] [align=center][align=left] I was impulsive and determined to make one myself. It turns out that my courage is one of my strengths. What h...
The monolithic integrated switching power supply VIPer53 is another highly cost-effective power supply chip newly launched in the VIPower family of STMicroelectronics (ST). The device integrates a ded...
[size=4][color=#000000][backcolor=white] In many engineering applications, PWM waves (pulse width modulation) are needed, such as motor speed regulation, temperature control and power adjustment. This...
What is 5G technology and what impact will it have on positioning technology? Every dayfirst, let us introduce you to 5G. This is the fifth generation of mobile connectivity. The earlier 2G, 3G, and 4...
1. Series DC regulated power supply
The circuit block diagram is shown in Figure 1, and the basic principle of the circuit is shown in Figure 2. Negative feedback is formed by sampling, amplificatio...[Details]
Bit operation is to read and write a bit individually, which is very common in 51 MCU. In 51 MCU, the keyword sbit is used to implement bit definition, while in STM32, the operation of a bit is imple...[Details]
High-side/low-side current-sense circuits Low-side current-sense circuits have a current-sense resistor connected in series to ground (Figure 1), while high-side current-sense circuits have a curre...[Details]
Dr. Song Tingting (transliteration) and Distinguished Professor Ma Qian (transliteration) (from left to right) and the team use a laser 3D printer to produce titanium alloy. Image source: RMIT Univ...[Details]
Recently, a post on Weibo about 5G is coming has been widely circulated and caused a lot of controversy. Many netizens asked: "Isn't the 4G network still in trial commercial use? How come 5G is about...[Details]
Hall Effect Sensors
Modern and Reed Switch Sensors Remain the Best Choice
in Your Application
Since the Hall Effect Sensor was introduced a few years ago, it has captured the imaginati...[Details]
According to Tianyancha APP, on October 19, Huawei Technologies Co., Ltd. disclosed the patent of "Motion Posture Recognition Method, Terminal Equipment and Storage Medium", with publication number C...[Details]
1. Flatness
The surface flatness of the display screen should be within ±1mm to ensure that the displayed image is not distorted. Local protrusions or depressions will cause blind spots in th...[Details]
According to Gsmarena, the Indian market price of Samsung Galaxy Note10 Lite has been exposed, starting at 35,990 Indian rupees (approximately RMB 3,491). Gsmarena reported that accord...[Details]
The standard 51 is 12T, which means 12 clock cycles (crystal oscillator cycle, for example, 12M, the cycle is 1/12M, unit is second), the machine does an instruction cycle, exactly 1/12M*12=1uS, comm...[Details]
89C52 controls MAX7219 to drive digital tubes, providing source code, schematic diagram, welding diagram, etc. Links are at the end of the article. Schematic Source code max7219.h /***********...[Details]
Global PC shipments are expected to fall 9.7 percent this year as consumers around the world continue to turn their attention to mobile devices, including tablets and smartphones, and PC users in man...[Details]
In recent years, ultra-large screens, Dolby sound effects, queen seats and various driving modes have gradually become standard features in models ranging from more than 300,000 yuan to new cars with...[Details]
Generally, a good PLC program needs to have the following characteristics: simplicity, readability, correctness, reliability, easy modification, scalability, complete alarm system and convenient pr...[Details]
Life is a mixture of joy and sorrow, and so is business.
Last week, it was reported that Honeycomb Energy decided to suspend the construction of its two
battery
factory projects ...[Details]