[i=s] This post was last edited by paulhyde on 2014-9-15 03:28 [/i] First, the signal source frequency should not exceed 50 or 60M. If it exceeds 60M, it is not easy to see with an ordinary bandwidth ...
I want to ask a question. I want to use assembly to store a string of data into the external expansion RAM of the microcontroller and then call it in C. Please give me some advice....
[color=#39352d] Recently, a new class division model of Chinese society has appeared on the Internet. It is very interesting. I will first extract and analyze it as follows: [/color] [color=#39352d] L...
The following is the program for the electronic calendar. . Please help. . Main program LP1: MOV AH,1 ; Input a single character from the keyboard INT 21H CMP AL,'M' ; AL='M'? JNE LP5 CALL DATE ; Disp...
Does anyone have the component diagrams of nRF401 and AT89C2051? Or can an expert help me draw 3 diagrams? I just went to the library to borrow books to study today! I am about to defend my thesis, ca...
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
This article discusses how to wake up a touch-sensitive device such as a tablet without touching the device, using basic gesture recognition and novel proximity sensors. The article discusses the p...[Details]
When choosing a laptop battery, you should consider several factors, such as power, appearance, and quality.
Regarding power, we often see that a manufacturer uses values such as the number ...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[Details]
The data collector of the automatic weather station is generally designed based on a single-chip microcomputer or a PC/104 bus controller. It has the characteristics of good compatibility with PC, low...[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
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[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 above is to use MB1404 as a stereo composite signal transmitter. You can use the internal high-frequency amplifier and oscillator or not! According to my experience, I still recommend beginners...[Details]
0 Introduction
In order to improve the automation control of shortwave transmitters, so that they can automatically process from far to near, the technicians here use the ICS system to complete the ...[Details]
With the rapid development of the national economy, lifting and hoisting operations are used more and more frequently and widely in various fields of economic construction. China has continuously expl...[Details]
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