I would like to ask if the 8255A chip can only select one port at a time. After defining the address for the port, such as Q8255A XBYTE[0x1CFF], if you want to use port A in the program, you can direc...
[i=s]This post was last edited by maychang on 2019-7-23 15:32[/i] There are many definitions of digital power supply. The more common ones are Definition 1: Power supply with digital control functio...
:congratulate: I have a Bluetooth speaker. I think the built-in battery (7.4V 22.2Wh) is broken. Now I can only use it with a power adapter. I want to take it outside and there is no power supply. Can...
Activity details: [Mil based on NXP's first NPU kit MYC-JX8MPQ]Updated to 2022-04-17Evaluation report summary:@Popular Technology[Mil MYC-JX8MPQ Review] + Improve the sht20 reading on the QT side[Mil ...
Common water level sensors include photoelectric, float, capacitive, and ultrasonic types. The working principles and application environments of each type of water level sensor are different. So how ...
I am about to graduate and need a graduation project. I can't think of anything to do. Can anyone provide a project, like a password lock, a microcontroller application?...
When an IT company builds a network, we must not only start from the actual needs of the enterprise itself, but also pragmatically plan and design the network according to the amount of networking fu...[Details]
Since 2017, the hottest trend in the mobile phone industry is full screen. Most mobile phone brand manufacturers have focused on full screen technology and strived to gain greater benefits from the...[Details]
A few days ago, I experienced the automatic parking function of a new car of a certain brand with my colleagues in the company. To be honest, the performance of this car is very similar to the way I ...[Details]
With the release of the "Elevator Supervision and Inspection Regulations", new requirements have been put forward for the elevator inspection quality of inspection agencies. However, during the imple...[Details]
Qualcomm Technologies and Google Cloud announce collaboration on Neural Architecture Search (NAS) for the intelligent connected edge
Qualcomm Technologies is the first SoC customer t...[Details]
The graduation project required external interrupts and timers, and both timers and external interrupts required three. I was confused at the time. I could have three timers, but it was difficult to ...[Details]
Using AT89S51 Single Chip Microcomputer to Make Infrared TV Remote Control The actual product is shown in the figure below: The output of a typical infrared TV remote control is generated by pulse...[Details]
According to local Japanese industry media reports, international memory chip giant Micron Technology (Micron) plans to build a new DRAM chip factory in Hiroshima, Japan, and is expected to receive l...[Details]
The starting performance of the medium frequency power supply is the most important performance indicator, and its quality directly affects the quality and performance of the equipment. Therefore, t...[Details]
With the development of society, people have higher and higher requirements for the comfort and safety of cars. However, manual transmission cars have increased the difficulty of driving due to the he...[Details]
"As video traffic grows exponentially, architecture optimization becomes a top priority. During the current COVID-19 pandemic, each of us is experiencing various forms of remote work, learning and en...[Details]
Samsung has released an official trailer and is scheduled to unveil a number of new products including Galaxy Note20, Z Flip 5G, Buds, etc. on August 5. The whistleblower Ishan Agarwal reveal...[Details]
Common op amp model knowledge CA3130 high input impedance operational amplifier Intersil
CA3140 High Input Impedance Operational Amplifier
CD4573 Quad Programmable Operational Amplifier MC1...[Details]
The turbine flowmeter is a flowmeter that measures flow. So what are the characteristics of the turbine flowmeter in practical applications? What are the advantages of the turbine flowmeter? The fol...[Details]
Speaking of 2.5D screens, I believe everyone has heard of it. After all, the latest iPhone 6 uses this screen. But in fact, iPhone 6 is not the first manufacturer to use this type of screen. As ea...[Details]