I have installed LINUX on the SD card. The board is also running Linux normally, but why can't I ping the board and the PC? . . . Please help me, a novice....
As shown in the photo: the higher the DC voltage connected to the ground by the negative pole of the battery, the greater the error of the AD value read by the microcontroller. Please tell me how to e...
The circuit needs to drive 8 relays. When multiple relays are closed and turned on, the current increases greatly. To ensure the actual effect, while widening the current line, it is hoped that the so...
To illustrate the use of the Model 2602 SourceMeter in multi-channel, multi-function test applicationsSource table capabilitiesand flexibility, let's look at 8- bit multiplicationDigital to Analog Con...
Other versions of PL2303 are basically fine. After a lot of effort, [img=640,500]http://ww3.sinaimg.cn/large/a7d07956gw1e76yti3vhpj20hs0dw0v7.jpg[/img] [img=640,500]http://photo.weibo.com/2815457622/w...
Today, when I was drawing PCB, I accidentally opened the routine program that comes with AD10 and found many secrets! Foreign engineers are really worth learning from. 1. Schematic diagram2. PCB[[i] T...
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]
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]
AD8205 is
a single-supply high-performance differential
amplifier
launched by
Analog
Devices of the United States
. The typical single-supply voltage is 5V, and its common-mode volta...[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]
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]
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]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[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: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]
Currently, each country is developing its own USB interface
charging specifications
, which leads to a major problem that a USB interface
charging
device manufactured in one country...[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]
A few days ago, I bought an 8LED flashlight in the market (the flashlight uses No. 5 batteries). Because I had other things to do, I didn't pay attention when purchasing it. When I got home and use...[Details]
The power supply is the core component of a computer. Although it is not of high value, all computer components rely on the switching power adapter to provide energy, so the stability of a power su...[Details]
FPGA/CPLD
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