Teach you how to quickly ensure the safety of lithium battery UPS power supply. In the process of daily use and maintenance, the safety of lithium battery UPS power supply cannot be ignored. How to en...
I recently used the Bluetooth module HC-05. I first set the serial port baud rate to 38400, entered the AT command, and
Set the Bluetooth module to master mode, then power it on again, set the baud ra...
[size=4]The function parameter can be not only integer, real, character, etc., but also pointer type. Its function is to transfer the address of a variable to another function. [/size] [size=4] [/size...
First, let's present a low-power one-button power on/off circuit. The characteristic of this circuit is that when the power is turned off, all transistors are cut off and almost no power is consumed.
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1. The transmission distance of traditional Bluetooth ranges from tens of meters to hundreds of meters, while BLE is set at 100 meters (actually not that far, it is relatively stable within 50 meters,...
The AD5933 specification sheet mentions temperature measurement: "The measure temperature command is used to start the temperature measurement. When measuring temperature, the device does not need to ...
Recently, there have been some big developments in the logistics
robot
industry. The Mocang Robot, which was established less than half a year ago, completed a RMB 20 million seed round of ...[Details]
The mastery of analog circuits is divided into three levels:
Primary level: to memorize these 20 circuits skillfully and understand their functions. Anyone who is an electronics enthusiast or a per...[Details]
Ever since Shen Yiren left the mysterious new OPPO phone in October at the end of the OPPO Reno2 launch conference, the popularity of this mysterious new phone OPPO Reno Ace equipped with the world's...[Details]
Precautions for using common electrical instruments
1. Use of clamp meter
A clamp meter is an instrument used to measure the current of an operating electrical circuit. I...[Details]
1. Warning 280:'i':unreferenced local variable
This indicates that no access operation is performed on the local variable i in the function.
Solution: Eliminate the declaration of the i variable in...[Details]
After the wrong operation, the chip will be locked and cannot be burned, as shown below: The solution is to use the STM32 ST-LINK Utility tool to unlock the chip: First connect the device and ...[Details]
Data shows that the global installed capacity of electric vehicle power batteries in 2022 will be approximately 517.9GWh, a year-on-year increase of 71.8%. In 2022, global power battery sales will be...[Details]
Materials: First prepare a development board with Linux installed Use the xshell tool to connect to the development board and the winscp tool to connect to the development board. Prepare an Ubun...[Details]
From mobile phones to solar energy to electric cars , people are increasingly dependent on batteries. As the demand for safe, efficient and powerful energy storage devices continues to grow, the need...[Details]
After two decades of relying on hybrids to meet fuel economy regulations and offer consumers a greener choice, the world's two largest automakers now say hybrids have no future in the U.S. General ...[Details]
0 Introduction
The automatic positioning of industrial locomotives is the basis of locomotive automation operation. It requires the detection device to accurately, quickly and reliably detect the lo...[Details]
introduction
Temperature sensors are needed in various production sites to detect temperature, and temperature is one of the most commonly used control parameters. However, in some dangerous s...[Details]
1.OLED related See —- 51 Software simulation SPI drive OLED 2. Hardware SPI See - SPI Topic (II) - STM32 driver FLASH (W25Q64) 3. Drivers The driver is transplanted with reference to the 51...[Details]
On November 4, Li Rui, member of the Standing Committee of the Provincial Party Committee and Secretary of the Municipal Party Committee, visited private enterprises in Honghuagang District and Xinpu ...[Details]
Power technology
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