An experience, a lesson. Let's take a look. I have been debugging AVR microcontroller circuit boards these days and found a strange phenomenon: the matrix keyboards on more than half of the boards can...
I use pwm to read the sine wave table, but the output is just the duty cycle changing, not the sine wave. Is there something missing? Can an expert give me some advice? Thanks!...
[align=left][color=rgb(0, 0, 0)][backcolor=rgb(255, 255, 255)][font=微软雅黑][size=14px][size=4]As the title says, cortex-A8 platform, kernel version: linux 2.6.37[/size][/size][/font][/backcolor][/color]...
Share it with everyone:[if gte mso 9]>Normal07.8 磅02falsefalsefalseMicrosoftInternetExplorer4Before talking about accuracy, we must first talk about resolution. Recently, there have been hot posts dis...
Which type of pressure sensor should I choose? The weighing range I want is 0 to 2000 grams or 3000 grams. I hope you can give me some advice! I hope it is a voltage output type sensor so that I can d...
I need to put 100 sets of digital tubes (6 per set) in each grid with a spacing of 40CM. The data displayed is the number of things in the grid. I saw someone else's work. Each set of digital tubes is...
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]
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[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]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[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]
People who often surf the Internet until late at night, their families always complain that turning on the big lights in the living room affects their rest, but some people don't have keyboard ligh...[Details]
Don’t just look at the power when choosing a power supply
We know that a power supply with a low rated power can hardly meet the power supply needs of the system, which may cause frequent free...[Details]
In recent years, with the increasing maturity of LED technology, LED light sources have been increasingly widely used due to their advantages of using low-voltage power supply, low energy consumpti...[Details]
With the popularity of digital appliances, rechargeable batteries can be seen everywhere in people's daily lives and have become one of the indispensable daily necessities.
This article gives ...[Details]
1 Introduction
CAN (Controller Area Network) bus is a kind of field bus. It is used in many industrial sectors due to its outstanding advantages such as high performance, high reliability, high...[Details]
1. Project Introduction
Beijing Benz-Daimler Chrysler Co., Ltd. is a joint venture between Beijing BAIC Group and Benz-Daimler Chrysler. In October 2005, it started to build a new automobile ...[Details]
0 Introduction
PROFIBUS is an open digital communication system with a wide range of applications, which has been included in the international standards IEC 61158 and IEC 61784. Since the gen...[Details]
Stepper motors, also called steppers, use the principles of electromagnetism to convert electrical energy into mechanical energy and have been used since the 1920s. With the increasing popularity o...[Details]
If users want to extend the effective use time of the battery, in addition to ensuring the quality of the charger, correct charging techniques are also essential. Here are 14 tips for charging mobile ...[Details]
1 Causes of problems with electric vehicle batteries
1.1 Caused by the battery itself
Why do we say that? In the previous issue, we learned about the working princi...[Details]