In the schematic diagram, there is no separate 1.8V power supply chip. Is it the output of RT5350 itself? Even so, why do some of its pins need 1.8V input? Please give me some advice. Thank you very m...
I am currently experiencing a permission issue when testing the Deactivate file by sending APDU commands to the USIM card via the AT+CSIM command. The EF I am testing is EFcpp2, and the permission ope...
I am currently using the firmware library of version V3.5, but the user manual I downloaded is from 2007, codenamed UM0427. The library function descriptions in it seem to be quite different from thos...
[i=s]This post was last edited by jibuzhuw2012 on 2020-4-24 09:43[/i]Dear Gods, please guide meThis is my first time designing a 7637-related product (cigarette lighter). I have read a lot of informat...
I can now simulate and debug the program; Run->Load->Load Program each time it is downloaded to RAM, but after I hit a breakpoint and restart the computer the program is gone. How do I download the pr...
Shenzhen Oubiao Industrial is recruiting walkie-talkie software engineers. If interested, please contact: 0755-26521204/26521000-836. Skill requirements: 1. Proficient in C language and assembly langu...
Today's computer peripherals are pursuing high speed and high versatility. In order to meet user needs, seven companies led by Intel launched the USB (Universal Serial Bus) bus protocol in 1994, wh...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[Details]
The solidification and modularization of intelligent video analysis algorithms are the current trends in the application of intelligent video analysis technology. It perfectly combines intelligent ...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[Details]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[Details]
Smart lighting control systems provide high controllability for various buildings and further enhance the level of green energy. They are the core products of energy conservation and digital techn...[Details]
With the continuous consumption of earth's energy and the scarcity of resources, the harm of greenhouse effect to human beings, and the serious pollution of the atmosphere to the earth, the intern...[Details]
The traditional display screen using 51 single-chip microcomputer to control LED dot matrix has relatively simple functions. If it is to achieve diversified functions, it often takes a lot of time ...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
FPGAs are used in 81% of electronic systems, including many commercial and defense products, and most FPGAs use BGA packaging. The BGA packaging is characterized by small solder balls and small sol...[Details]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[Details]
PCB Design
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