[i=s]This post was last edited by lb8820265 on 2016-3-19 14:37[/i] [align=left] [size=3] I have designed the board during this period. The board is very small, only 5.5cm×6.5cm. The project files are ...
[i=s]This post was last edited by mzb2012 on 2017-10-6 20:54[/i] [b][size=6]Human infrared sensor LED light[/size][/b] [b][size=5]1. Background[/size][/b] [size=4]When I have a baby at home, I sometim...
I want to use the button as an external interrupt, turn on the timer through the interrupt service routine, use the timer TIM1 to update the interrupt, and turn off the timer interrupt when the extern...
Moderator, I have a question:I use ST-LINK to debug the chip online. After the program is burned into the MCU once, when I connect again, the MCU and ST-LINK cannot connect! It has been unable to conn...
I would like to ask the experts, is there a good method for ARM7 to move each data in the array by one position and connect the 0th position of the second one to the 7th position of the first one, and...
" Aite " is not just for boys. There are also a group of " Aite " girls active in the circle . Like IT boys, IT girls have to face all kinds of overtime, frustration and hardship every day! They don't...
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]
introduction
my country has a vast territory and a large population. The scale of housing construction is huge, and the amount of residential construction is large and wide. It is still on t...[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]
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]
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]
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]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
Among the many members of the single-chip microcomputer family, the MCS-51 series of single-chip microcomputers has occupied the main market of industrial measurement and control and automation eng...[Details]
From the previous section, we have learned that the timer/counter in the microcontroller can have multiple uses, so how can I make them work for the purpose I need? This requires setting the timer/...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[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]
Only a small number of LED manufacturers can produce high-quality LEDs. For applications that are only used for simple indication, low-quality LEDs are sufficient. However, high-quality LEDs must...[Details]
Introduction
Nowadays, people pay more and more attention to the security alarm system, and people have higher and higher requirements for the functions and performance of the alarm. This paper prop...[Details]
1. Introduction
With the increasing popularity of fully automatic washing machines, consumers have higher and higher requirements for their environmenta...[Details]