USB 2.0 has three speeds: LS (Low Speed) 1.5Mbps FS (Full Speed) 12Mbps HS (High Speed) 480Mbps LS is mainly used in low-end keyboards and mice. The actual speed is very low. It is not recommended exc...
I am looking for a design paper on dot matrix display screen based on single chip microcomputer. If you are interested, please contact QQ1210979462. I will chat on QQ about the salary!...
Graduation thesis for an in-service master, the design requirements for the drive power supply of a stepper motor are as follows: 1. The control circuit, drive circuit and other related circuits of th...
At that time, the company recruited a large number of new people who had just graduated from undergraduate and graduate schools. The average age was 25 years old. The new assistant was a girl I person...
As the title says, if the wiring is a single-sided board on one side and a double-sided board on the other two sides, how can we tell whether it is a four-layer board or an eight-layer board? Or more?...
Today we analyze LIS2DW12, simulate the IIC interface, and verify the ID first:uint8_t LIS2DW12_Read_Date(uint8_t SlaveAddress, uint8_t RegAddress)
{uint8_t recvDate;uint8_t succ, stime=0;I2C_Start();...
This program is written to simulate the serial port hardware mechanism. When used, a timed interrupt can be set with a time interval of 1/4 baud rate. The receiving function is called once for ea...[Details]
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[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]
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
DSP (digital signal processor) is used more and more frequently in today's engineering applications. There are three main reasons for this: first, it has powerful computing power and is capable of ...[Details]
Vertical cavity surface emitting lasers (VCSELs) are gradually replacing traditional edge emitting lasers, especially in low bandwidth and short-distance communication systems where cost factors ar...[Details]
Experimental tasks
A DS18B20 is used to form a temperature measurement system. The temperature measurement accuracy reaches 0.1 degrees. The temperature range is between -20 degrees and +50 de...[Details]
In 2012, more than half of the cars in the European, Japanese and American car markets will be equipped with color displays, navigation systems, satellite communications and other in-vehicle infota...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guangzho...[Details]
Abstract: The output of high-range acceleration sensor is less than 10 mV under the excitation of small signal. The noise of traditional test system may cover such small voltage signal, so that hig...[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]
Analysis of the three core aspects of digital TV transmission standards
According to the differences in regionality, transmission method and modulation method, the transmission method needs to...[Details]
The production process of lithium batteries does not mention the previous processes such as material preparation, winding, liquid injection, and packaging, but only talks about the final formation ...[Details]
1 Battery technology determines the fate of energy vehicles
Regardless of whether new energy vehicles are hybrid or pure electric vehicles, they cannot do without the core technology of batter...[Details]