Design requirements of gas concentration detector based on at89s52: (1) Small size, light weight, easy to carry. The circuit uses a single-chip microcomputer as the main controller and is powered by a...
Recently, due to the death of the father of hybrid rice, a wave of learning and exploring hybrid rice has been set off on the Internet.
On the one hand, it is to pay tribute to the father of hybrid ri...
Is it necessary to add OSIntExit() function when the interrupt function, especially Tmr_TickISR_Handler, exits?But I have seen that many interrupts written by others are not added at all, that is, no ...
[p=30, null, left][font=宋体][font=Verdana][color=#a0522d] Linear regulators have long been widely used in the industry. Before switch-mode power supplies became mainstream after the 1960s, linear regul...
I saw it online, I don't know if it has any flashback issues.Baidu Cloud Disk
[hide]Link: https://pan.baidu.com/s/1ZFhK56UXgvfT3jYnrqvTFAExtraction code: 3wx0[/hide]...
[i=s]This post was last edited by ddllxxrr on 2014-8-19 13:21[/i] [p=18, null, left][color=rgb(51, 51, 51)]In the previous mbed digital input and output preliminary application, the user's input was j...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[Details]
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[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]
Aromatic gases are widely present in food, medicine, cosmetics and various daily chemical products, such as snacks, liquor, spices, Chinese herbal medicines, plasters, perfumes, soaps, shampoos, et...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[Details]
Overview
In spectral measurement, photomultiplier tubes (PMT) and charge-coupled devices (CCD) are often used as photoelectric converters. PMT is used in slow-changing, high-precision spectral...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
Abstract: Aiming at the needs of coal-rock acoustic emission signal monitoring system, a data acquisition circuit with 24-bit resolution and 16-channel synchronous data acquisition function is desi...[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]
Temperature compensated quartz crystal oscillator (TCXO) is widely used as a high-precision frequency source in communication systems, radar navigation systems, precision measurement and control sy...[Details]
In the "digital pressure measurement" experimental device of applied physics, the subject technical knowledge of analog circuits, digital circuits, sensors and single-chip microcomputers is used. In o...[Details]
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