As the title says, a friend wants to use E coins to redeem items on Yixun.com, so I post this here to see how many friends use Yixun.com? What are the features of Yixun.com? What do you usually buy?...
Now I am developing a POS machine and found that after the GPRS connection is successful, the printing page is also completed, but at this time the GPRS is disconnected by itself. I canceled the state...
I am using pxa270. I modified it with the built-in mainstoneIII. Everything was normal at the beginning, but an instruction abnormality occurred when it ran to KCall. I searched on the Internet and sa...
[i=s]This post was last edited by Aguilera on 2018-5-27 22:00[/i] [size=5] Initialize the driver in Code Composer Studio. In the state machine, the value of the wheel will be polled periodically and t...
What is the difference between a memory controller and an MMU? I am using the DaVinci series of processors, which include ARM926, VPSS (mainly used for video processing), and DSP. These things all wor...
Analog circuits are very important , and the application of transistors in analog circuits is of paramount importance. Being able to correctly understand the amplification region, saturation region, a...
When the WDP500-2A plane grating monochromator is used to test the emission wavelength of a high-power laser diode at different currents, the matching of the laser diode has the disadvantages of lo...[Details]
Abstract: In order to generate a stable excitation signal, the design of a digital frequency synthesizer is implemented on FPGA using Verilog hardware language. The design includes accumulator, wav...[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]
1 Introduction
Building Automation System (BAS) is a distributed monitoring system (DCS) designed according to distributed information and control theory. It is the result of the mutual de...[Details]
1 Introduction
With the development of control, computer, communication, network technology, etc., a new control technology, namely fieldbus, has emerged in the field of industrial control...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
0 Introduction
With the rise and continuous improvement of the solid-state lighting industry, light-emitting diodes (LEDs) have become an alternative lighting technology and are gr...[Details]
This controller uses PIC16C54 single-chip microcomputer as the controller, and it is very easy to use: just connect a telephone line to the loudspeaker through the controller, and you can rem...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
Introduction
As the country increases its efforts to control the atmospheric environment, motorcycle emission regulations will become stricter year by year, and motorcycles that do not meet the...[Details]
Against the backdrop of global warming, energy conservation and emission reduction have become a global hotspot and focus, which has also sounded the clarion call for the take-off of the LED lighti...[Details]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
HL201A is a special thick film driver integrated circuit with a capacity of less than 75AGTR developed by Xi'an Power Electronics Technology Research Institute. The article explains the pin arrange...[Details]
1 Introduction
At present, people have higher and higher requirements for the quality of life. When people are busy with work, soymilk machine is a new type of household beverage machine. It uses so...[Details]