We are currently making a set of outdoor smart locks, which are anti-theft and have no obvious prying points. This means that it is a fully enclosed shell, which is also installed on a metal cabinet. ...
Dear experts, I have a difficult problem to solve. My company wants to use a single chip microcomputer to control the on and off of a load of about 48V 100A. We do not plan to use a relay to control t...
I beg all masters and seniors to see where the circuit is configured incorrectly. The current problem is that there is a leakage of 4~5mA when the load (voice chip) is connected.Please give me some ad...
To understand the triggering of an oscilloscope, we must first understand the role of the triggering of an oscilloscope. Let's take a look at the current running state of the oscilloscope. The oscillo...
ST-60 is a new semiconductor series of STMicroelectronics, dedicated to the innovation of contactless connection. ST-60 uses the 60GHz frequency, which is an unlicensed band in most countries. The rea...
[size=4] The TMS320C2X/C5X fixed-point processor has two types of memory: program memory and data memory. The program memory mainly contains executable program code, while the data memory mainly conta...
Design requirements:#
Use infrared tube to detect whether someone enters or leaves
After triggering the infrared tube, use PWM to drive the buzzer to make it make a ding-dong sound....[Details]
A touch screen is a computer input device that allows users to make selections by touching the screen, unlike a keyboard or mouse that allows input. Computers with touch screens require little sto...[Details]
Well-known blogger @数码闲聊站 previously revealed that OPPO will launch a folding screen mobile phone, named OPPO Find N. Compared with the N series 7 years ago, this phone is more like a flagship. This ...[Details]
Recently, a number of domestic companies have complained to the China Mobile Alliance about Sharp's unreasonably high prices and abuse of litigation injunctions in patent licensing negotiations. The ...[Details]
1 Introduction Vehicles are a special application environment. The continuous improvement of vehicle automation has put forward higher requirements for vehicle instruments. Traditional moving magne...[Details]
Apple has formed a dedicated communications research team to work on new ways to beam data, such as internet connections, directly from satellites to user devices, Bloomberg's Mark Gurman repo...[Details]
Recently, the CES 2023 exhibition was opened in Las Vegas, the United States. During the exhibition, Samsung held a media meeting. Han Jong-hee, Vice Chairman and Co-CEO of Samsung Electronics, sai...[Details]
By Alessandro Veglio , Texas Instruments Automotive designers have successfully integrated millimeter wave (mmWave) sensors into several automotive in-cabin applications. One of these applicat...[Details]
On September 13, SiFive, the founding company of RISC-V computing, announced the launch of three automotive-grade cores: E6-A, X280-A and S7-A solutions to meet the key needs of current and future ...[Details]
MCU simulated serial port experiment. If you want to use the serial port function on a MCU without a serial port, you need to simulate a serial port. The microcontroller source program is as follo...[Details]
Foreign media 9to5 Mac reported that HomePod is about to reach a month as Apple's discontinued product. Unlike the iMac Pro, which disappeared from Apple's official stores within 13 days, the w...[Details]
As for the absolutely disruptive product for electric vehicles: solid-state batteries, in fact, many media have begun to exaggerate since 2022, as if that is the real starting point of electric veh...[Details]
Sina Digital News reported on the afternoon of May 20 that the smartphone brand Nubia held an online press conference and officially launched the Nubia Z30 Pro phone. According to the officia...[Details]
4. Design and application of new green energy-efficient Class D audio amplifier
introduction
In the multimedia era, traditional Class A, Class B, and Class AB linear analog audio amplifiers can...[Details]
ARM seven working modes: Figure 1-1:
Figure 1-1
The above seven working modes can be set in cpsr: M =Mode number as follows.
Figure 1-2
The reason for having so many...[Details]
RF/Wirelessly
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