Experimental principle: This example is a demonstration program for using SIM800 to send and receive data via GPRS. Experimental phenomenon: After the program is run, set the DMZ of the router, open t...
[color=black]LED is originally a diode. Of course, a diode can be directly connected to AC power. A rectifier diode can be directly connected to AC power. However, the voltage resistance of a general ...
I recently received a Stellaris Cortex-M3 evaluation board and tried the examples in it. Now I want to do a project by myself, but there is no library function. Can anyone provide me with the library ...
[font=宋体][size=10.5pt]The simplex wireless calling system is divided into two parts: transmitting and receiving. The transmitting part adopts phase-locked loop frequency synthesizer technology. The MC...
The input terminal of this power supply can be connected to AC voltage and DC voltage at the same time. It is the same terminal, and the DC input voltage range is Vdc: 18~100V and the AC input voltage...
Blood pressure is one of the important physiological parameters of the human body. Accurate measurement of it is conducive to early detection and identification of hypertension types, and to the pro...[Details]
A biped robot joint constructed by pneumatic artificial muscles is introduced. The joint uses the flexible characteristics of pneumatic artificial muscles to effectively control the impact of the la...[Details]
This issue will briefly introduce the test related to spectrum - occupied bandwidth.
Definition: Occupied bandwidth refers to the bandwidth corresponding to 99% of the total transmitted power, cent...[Details]
Due to the needs of medical development, in many cases, general thermometers can no longer meet the requirements of fast and accurate temperature measurement, such as measuring human body temperature ...[Details]
The small size and low cost of home appliance control boards mean that high-cost materials will not be used in the circuit to solve the electromagnetic interference problem. The interference of hom...[Details]
Demand Analysis
In an era of rapid information development, the process of electronicization of the financial system has also been greatly accelerated. As a platform that provides services 24 ...[Details]
introduction
Controller Area Network (CAN) is a bus standard proposed by Bosch of Germany to solve the information communication between automotive electronic control units. With its excel...[Details]
Multiple Input and Multiple Output (MIMO) technology is arguably the next most important development in wireless communications since the advent of digital communications. Many new wireless commun...[Details]
Abstract: By controlling the supply voltage of the radio frequency (RF) power amplifier (PA) in a CDMA/WCDMA cellular phone, the PA efficiency can be improved, heat generation can be reduced, and t...[Details]
With the advent of the new economic era represented by the Internet, PCs have lost their former glory, and smart 3C products (Computer, Communication and Consumer) will set off a new wave. As one o...[Details]
Automatic target recognition (ATR) algorithms usually include algorithms for automatically detecting, tracking, identifying, and selecting attack points for targets. The complexity of the battlefi...[Details]
This paper introduces the technology and application of optical transceiver modules and digital non-volatile variable resistors in optical communication networks, and focuses on the design and appl...[Details]
When it comes to ATX power supply, people will think of two "classic" ICs: pulse width modulation chip TL494 and voltage comparator LM339. The new dedicated control chip AT2005B has the functions ...[Details]
1. Introduction
Most of the existing heaters use traditional devices such as electric heating tubes and electric heating wires for heating. The outer shell of the electric heating tube is a ...[Details]
0 Introduction
The mobile mechanism is the main body of the cleaning robot, which determines the movement space of the cleaning robot and generally adopts a wheeled structure. The sensor syste...[Details]