The power supply and disconnection of 12V door locks (such as magnetic locks, cathode locks, etc.) are controlled by relays. The back electromotive force generated by the door locks every time they sw...
The external FLASH of STM32F746GDiscovery is broken. I want to replace it with a new one, but I can't blow it off with an air gun. I tried twice, but I couldn't blow it off. The first time I tried, I ...
[b]Aerial photography drones can only be multi-rotor drones? Parrot stands up and gives you a fixed-wing Parrot Disco... [/b] [color=#444444][backcolor=rgb(255, 255, 255)][font=Verdana, Arial, sans-se...
The previous article introduced the use of LCD screen. This screen also has a touch function. This article will introduce the use of the touch function of LCD.
There is a lot of content about touch, w...
characteristic * Complete program flow control * Emulates all analog and digital functions on the chip, except RESET pin * Real-time operation * Supports symbolic debugging (C and assembly level, or ...[Details]
The annual Spring Festival travel rush begins. Traffic jams and long charging queues have become a torment for all those who drive pure electric vehicles back home. Spring Festival travel rush S...[Details]
As the world's environmental pollution and economic crisis become increasingly serious, people pay more and more attention to the research of renewable energy. As the most promising technology for ge...[Details]
News on the evening of December 28th, Xiaomi launched the new generation flagship mobile phone "Xiaomi 12" series, as well as new products such as Xiaomi Watch S1, Xiaomi True Wireless Noise Can...[Details]
LED display screens are divided into video display screens, graphic display screens and digital display screens, all of which are composed of LED matrix blocks. The display device of LED digital di...[Details]
Generally, there are two crystal oscillator access ports, OSCin and OSCout, on the single-chip microcomputer. We can use a passive crystal oscillator plus a starting capacitor to start the crystal osc...[Details]
1 Introduction
Temperature is a major controlled parameter in industrial production processes. At present, conventional PID controllers are mostly used to control temperature. PID controll...[Details]
Battery recycling facility at the U.S. Department of Energy's
Oak Ridge National Laboratory (
ORNL)
Lithium-ion batteries are essential for decarbonizin...[Details]
Various
types The main feature of
low-frequency amplifiers
is that they have a wide operating frequency range, and the center frequency of the amplified signal ranges from tens of Hz to h...[Details]
The communication bandwidth of modern satellite communications, 5G mobile communications, and wireless LAN is very wide, which may exceed 500MHz or even reach around 2GHz. For such a broadband signal...[Details]
According to reports, joint research by Professor Yoon-Ho Kim’s team at Pohang University of Science and Technology (POSTECH) in South Korea and the Center for Quantum Science and Technology at the U...[Details]
Redmi officially introduced that the pop-up camera of K30 Pro is a camera that can "protect itself". K30 Pro uses a 3D gravity sensing system, which can quickly sense the falling state and quickly st...[Details]
First of all, high light efficiency: The light efficiency of LED display screens can be said to be an important indicator of energy saving. At present, China still needs to strengthen its light effic...[Details]
1. Conditions for CPU to access the chip The CPU reads data from external devices by accessing the storage controller. If the CPU wants to access a chip, it needs the following conditions (co...[Details]
The intelligent soft start cabinet is a device used for starting the motor. It controls the starting current of the motor to achieve smooth starting of the motor, reduce the current shock during st...[Details]
Analog electronics
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