With the explosive growth of TWS earphones, higher requirements are placed on the battery life of earphones and battery boxes. Generally, the battery life can be improved from the following points.
1)...
Now we are going to produce a batch of calibration cards (EEPROM 24C128 + pull-up resistors for SCL and SDA signals, a total of threecomponents). This calibration card is an accessory for the product....
CAN bus
CAN (Controller Area Network) bus is widely used in vehicle communication and control due to its many advantages such as high real-time performance, high reliability, complete functions, high ...
A common parameter for power supplies is the output power, such as 2000 watts.
However, some power supplies will give two parameters, one is the apparent power (such as 2500 VA), and then the active p...
The ST-Link virtual serial port on the board is connected to UART4 of STM32MP157A. If you type characters in the terminal to enter interactive mode when the system is in the card insertion state and t...
[i=s]This post was last edited by Hot Ximixiu on 2019-7-4 21:18[/i]There is a joke like this: "Marry to my village. The conditions in my village are not bad. Clothes are basically made by spinning, fo...
According to foreign media reports, between March and May 2018, Nintendo's internal server used to store game development data was hacked. It is not clear how much game data under development was lea...[Details]
1 Introduction
Frequency conversion technology was born to meet the needs of stepless speed regulation of AC motors. With the development of power electronic devices, frequency conversion techn...[Details]
1 Introduction
GPS attracts many users around the world with its high precision, all-weather, global coverage, convenience, flexibility, high quality and low price. The widespread application of...[Details]
1. When plugging and unplugging the power frequently, the PIC microcontroller is prone to crash. Use a 10K resistor and connect the 5V output of the LM7805 to the ground. 2. The capacitance of the re...[Details]
introduction
nRF24L01 is a single-chip wireless transceiver chip that works in the 2.4-2.5 GHz universal ISM frequency band. It is used in wireless data communications, wireless access control...[Details]
The second stage of initialization: initialization of various system resources The second stage of initialization is performed only by the main cpu (cpu0) cpu1 ... etc. cpu is only responsible for ...[Details]
Entering 2019, the global semiconductor industry is in decline, and the Sino-US trade war is also happening. The development prospects of the semiconductor industry are full of uncertainty. To paraph...[Details]
Using the PWM input capture function of STM32, the duty cycle and (or) frequency of the square wave can be measured When in use, configure the corresponding input as the multiplexing function corresp...[Details]
At the end of December 2019, the finals of the 3rd Beihang Global Innovation and Entrepreneurship Competition were held in Beijing. After fierce competition in the preliminary and semi-finals and lay...[Details]
ON Semiconductor and Danfoss have announced that the company will supply high-power IGBTs and diodes to Danfoss Silicon Power for use in inverter traction modules for the fast-growing electric vehicl...[Details]
With the rapid development of network technology and embedded technology, video surveillance through the network has been widely used. 3G network makes it possible to transmit smooth video informatio...[Details]
Multimeters can be used to measure DC voltage, DC current, AC voltage, resistance, etc. Some multimeters can also measure AC current, decibels, power, inductance, capacitance, transistor parameters...[Details]
Temperature is a parameter that people pay close attention to, both in daily life and in industrial production. Temperature control is an important part of industrial automatic control and has importa...[Details]
On May 10, Doxin Semiconductor responded to investors' inquiries on the investor interaction platform regarding "What is the LPDDR4X process developed by the company? Is it expected to be mass-produc...[Details]
When porting QT4.5 to mini2440, I encountered the problem of displaying Chinese in QT. Based on the information searched on the Internet, the solution is summarized as follows:
Step 1: Dow...[Details]
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