This card reader was broken before, I fixed it, you can see it mainly on the motherboard. The motherboard has not been touched. Now everything works fineThe blue shell on the top can be opened by pres...
Why does the RS485 communication protocol specify several bytes instead of specific data? For example, "address field A0A1A2A3 4, command byte 1, length byte 1, data area (identifier 2, data)" What do...
The ECU (Electronic Control Unit) is the module in your car that controls the engine, ensures complete combustion, and more. It protects you from accidents and even gets you to your destination. This ...
I have a set of source code, similar to www.dihishoes.com, and also CRM, ERP source code. If you are good at art design, you can add me. If you have code exchange, you can also add me. In addition, I ...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:23[/i]At that time, I went to a toy store and bought a remote control car, and then I took everything out of it. The one with two motors in t...
introduction
my country has a vast territory and a large population. The scale of housing construction is huge, and the amount of residential construction is large and wide. It is still on t...[Details]
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
As LEDs continue to improve in almost every aspect of performance and cost, LED lighting is being used in an increasingly wide range of applications, among which LED street lights are a focus of in...[Details]
D5026A is a driver IC designed by Shanghai Debei Electronics for energy-saving LED display screens. Its design concept is energy-saving and compatible with existing solutions, that is, it can be ...[Details]
Introduction
Nowadays, people pay more and more attention to the security alarm system, and people have higher and higher requirements for the functions and performance of the alarm. This paper prop...[Details]
1 Embedded Systems
Embedded System refers to a collection of computer hardware and software with specific functions or purposes, which is divided into embedded software system and embe...[Details]
Distributed Wireless Communication System (DWCS) uses distributed antennas, distributed processing control, joint signal processing and other technologies to improve the system's spectrum efficie...[Details]
For battery-powered portable devices, in addition to breaking through the limitations of processing power, the performance of portable system power supplies also needs to be continuously improved. ...[Details]
Power supply is often the most easily overlooked link in the circuit design process. In fact, as an excellent design, power supply design should be very important, which greatly affects the perfor...[Details]
introduction
Temperature and humidity are the main environmental parameters of industrial and agricultural production. It is of great significance to measure them accurately and timely. Using a s...[Details]
DigRF
is
poised to replace the two main forms of data communication paths between RF and baseband semiconductor devices:
analog
signaling, and proprietary digital signaling (paralle...[Details]
Various electronic and electromagnetic interference inside and outside the car often puts automotive electronic equipment in dangerous working conditions, degrading the performance of electronic eq...[Details]
1. Sensor
According to the national standard GB7665-87, a sensor is defined as a device that can sense the specified measured quantity and convert it into a usable output signal according to a...[Details]
The situation of "excessive neutral current" mentioned here means that when the three-phase load is balanced, the neutral current is still too large, and the neutral current is more than 1.5 times ...[Details]
Making friends through disassembly
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