Recently, there have been many rumors about the 2G network being phased out, and various news have been flying around, even becoming a hot search topic. How do we interpret the true meaning of this in...
First, I used floating point numbers to set the voltage (actually I should have used fixed point numbers), and then I should have used event sets for inter-thread communication (yes, I was lazy again)...
The strategy of ST chip is ambitious! It not only deepens the cooperation with universities, but also has a wide application in the domestic market! In the last year, the price of an ordinary STM32F10...
[i=s]This post was last edited by bigbat on 2019-2-22 11:52[/i] After lighting up the LED in the previous article, start testing Ethernet. [color=#0000ff]The board is provided by ST, [url=https://www....
This is the 24V input power processing part on a microcontroller circuit board.
What is TV_RM in the red circle? Is it a TVS tube? After being connected in parallel with the resistor, both ends are co...
Background: In order to coordinate the more comprehensive knowledge points of circuit design, I will introduce various commonly used devices and design concepts in circuit design in the near future, s...
According to Jiwei.com, amid the Sino-US trade friction, many Chinese companies are subject to the US Entity List, including manufacturers in the mobile phone industry chain such as Huawei and O-Film...[Details]
Although the price of Samsung's flagship phones is prohibitive, often costing eight or nine thousand or even tens of thousands of yuan, Samsung still has many low-priced mobile phones worth choosing,...[Details]
0 Introduction
Electromagnetic flowmeter is a metering instrument for measuring the volume flow of conductive media, with the characteristics of high measurement accuracy, good stability and ...[Details]
Figure 1. Schematic diagram of the (a) deposition process and (b) deposition mechanism of metallic lithium on curved graphitic carbon spheres.
Figure 2. (a) Discharge curve and deposition ...[Details]
Since Apple launched the AirPods series, TWS headphones have become the hottest market in the wearable device field in the past two years. According to the latest report from market research firm ID...[Details]
Introduction
With the continuous improvement of environmental awareness and the increasing prominence of energy issues, electric vehicles, as a clean, efficient and low-emission means of trans...[Details]
"99% abnormality rate of physical examinations for white-collar workers in Shanghai" and "Five major health concerns of post-90s" have frequently appeared on hot searches; public opinions related to ...[Details]
1. Forward voltage decreases, dim light
A: One is that the electrode and the light-emitting material are in ohmic contact, but the contact resistance is large, which is mainly caused by low co...[Details]
Electrolytic
capacitors
are widely used in
different fields of
power
electronics
, mainly for smoothing, energy storage or
filtering after rectification
of AC volta...[Details]
In the following content, the editor will focus on introducing and explaining the relevant content of spectrum analyzers, mainly on how to choose a spectrum analyzer and how to solve the loss of lock...[Details]
Infrared transmission and reception diagram:
Infrared receiving circuit
The receiving end defaults to high level
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The maximum pulse width of the detection pulse is 5ms
Ret...[Details]
1 Introduction Temperature is one of the main controlled parameters in industrial production, and various temperature control systems related to it are widely used in metallurgy, chemical industry, m...[Details]
How Spectrum Analyzers Work Currently, signal analysis is mainly carried out from three aspects: time domain, frequency domain and modulation domain. The spectrum analyzer analyzes the frequency doma...[Details]
When SM2..0 is 011, the SLEEP instruction will put the MCU into power-saving mode. This mode is different from the power-down mode in only one way: if the timer/counter 2 is driven asynchronously, t...[Details]
In most processors after ARM V4 and V4T, the interrupt vector table can have two locations: one is 0 and the other is 0xffff0000. This can be controlled by the V bit (bit ) in the CP15 coprocessor ...[Details]
RF/Wirelessly
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