Multiple Choice 1. The transistor works in Class B working state, and the conduction angle of the tube is . A) 0 °; B) 90 °;C) 180 °;D) 360 °; E) Between 180 ° and 360 °.2. When the transistor work...
The demand for electrical energy in cars is growing as demand for autonomous driving functions as well as comfort, convenience and infotainment features continues to grow. Today's cars have an increas...
[i=s]This post was last edited by yhye2world on 2019-8-15 15:10[/i]As shown below, RS232 to RS485 passive converter;
The terminal board on the RS485 port side is lost.Now I want to use a DB9 connector...
When comparing CRT and LCD displays, one of the most common differences is flicker. It is generally believed that CRT displays flicker, while LCDs do not. It is found that both types of displays flick...[Details]
The specific principle of ds1302 can be found in relevant Chinese materials: The specific process used by ds1302 is: Write the command and initial time to ds1302 to initialize ds1302. Write command...[Details]
Applying kernel space memory from a user perspective // https://blog.csdn.net/u011011827/article/details/117335579 level 1 api level1 phy mem api : get_page_from_freelist add_to_free_list ...[Details]
Path Breath and Fat Band is a new device that claims to help users lose weight by analyzing their metabolism in detail. However, despite the company's claims that the device has scientific basis, so...[Details]
Sensor MQ-2 collector PCF8591 processor STC89c51 display LCD1602 button adjustment plus or minus alarm value initial value is 50% The simulation schematic diagram of the 5V simple voltmeter bas...[Details]
Written at the beginning: Interrupt is one of the very important functions of all microprocessors including single-chip microcomputers. Beginners of single-chip microcomputers must have this knowledg...[Details]
1. Introduction
As network and information technology become more mature worldwide, industrial automatic control systems increasingly use Ethernet and TCP/IP protocols as the main communic...[Details]
Experiment name: LED dot matrix experiment (light up one point) Wiring instructions: Experimental phenomenon: After downloading the program, the 8*8 LED dot matrix lights up the first point in the up...[Details]
The prosperity of downstream new energy vehicles continues to rise, and the pace of power battery production capacity expansion has not stopped. According to statistics from Gaogong Lithium Battery...[Details]
Nowadays, many MCU application fields are powered by batteries, and energy saving has become a common concern for design engineers. I hope everyone can discuss this aspect. The following are some...[Details]
On February 16, Fangbang Co., Ltd. released its 2021 annual report, achieving operating income of 286 million yuan, a year-on-year decrease of 0.76%, basically the same as the same period in 2020; an...[Details]
LED is a light-emitting tube with diode characteristics, which can only be powered in one direction. Usually, the brightness output of LED is proportional to the current passing through the LED, b...[Details]
Both parties hope to explore opportunities in distribution asset monitoring and grid digitalization for the global metering industry Highlights: • Qualcomm Technologies and Gridspertise Srl., ...[Details]
There would be no market for electric vehicles if charging infrastructure for electric vehicles required long queues and hours of waiting. As public charging points tend to increase power delivery ...[Details]
51mcu
京公网安备 11010802033920号
EEWORLD
