Title of Work
Smart car based on ESP32 road sign recognition
Author: Wang Zhiyuan
1. Introduction
The smart car based on ESP32 road sign recognition is ESP32 as the master control, controlling the mov...
Take the SD card as an example. Registry [HKEY_LOCAL_MACHINE\Drivers\BuiltIn\SDHC_SMDK2440] "Order"=dword:21 "Dll"="sdhc_sc2440.dll" "Prefix"="SDH" "DMAChannel"=dword:0 ; DMA channel to use. Set to 0x...
Regarding the issue of using sensors to sample minute changes in liquids? I want to use sensors to sample minute changes in liquids, and then I tried hanging a bottle and using sensors to sample chang...
I use GPRS to debug and send text messages, but I don't know how to convert the text into PDU mode. Or how to convert the hexadecimal text received in the hyperterminal into Chinese?...
Questions about isolated communication:1. Is this isolated communication the same as level conversion?2. As shown in the figure, this is an IIC isolated communication circuit , which uses two high-vol...
[align=left][color=rgb(34, 34, 34)][font="]The transistor amplifier circuit includes the transistor single-stage amplifier circuit, the transistor double-stage amplifier circuit, and the negative feed...
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[Details]
1 Introduction
With the acceleration of the pace of urban modernization, society has higher requirements for urban road lighting and urban lighting projects. The state has clearly required tha...[Details]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[Details]
With the rapid development of urban economy, elevators are increasingly used as a vertical transportation tool. However, elevator fault detection and maintenance, especially the role of elevator remot...[Details]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[Details]
Although it is relatively easy to check the stability of a simple amplifier at lower frequencies, it may be much more difficult to evaluate the stability of a more complex circuit. This artic...[Details]
Vertical cavity surface emitting lasers (VCSELs) are gradually replacing traditional edge emitting lasers, especially in low bandwidth and short-distance communication systems where cost factors ar...[Details]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
This week, Microsoft held its 2012 Microsoft Worldwide Partner Conference (WPC) in Toronto, Canada. At the conference, Microsoft showed its new products and services to partners around the world. A...[Details]
LED is the abbreviation of light emitting diode, which is an electric light source made of semiconductor technology. The core part of LED is a chip composed of P-type semiconductor and N-type semi...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[Details]