This question is quite ridiculous, but I just can't figure it out. I downloaded an example program from the Internet, which reads a test.txt file from the SD card. [code]BOOL CSDMMCDlg::OnInitDialog()...
I was bored. I sent a message to a female colleague: I have booked a room, waiting for you! She replied: Don’t joke. ? I replied: Really, everyone says you have good skills, I want to test it out. She...
I use MAX7219 to drive LED to display time countdown. I use 8051 to drive but it doesn't work. Let's see if there is any problem with this program. void max7219_reset(void) //Initialize MAX7219 { writ...
As the title says, I tested several boards and found that PA15 outputs 3.3V by default. What's going on? There are several boards, and they are all different....
[size=4][color=#000000][backcolor=white] IoT, 5G, and NB-IoT are the most popular communication terms nowadays. With the maturity of 5G, "intelligent interconnection of all things" is becoming a reali...
Electric motors and internal combustion engines of the same power have similar torque levels. High power requires high torque, and torque determines a vehicle's acceleration speed, commonly known a...[Details]
Current Development Status of DVR Market
A DVR, or digital video recorder, uses a hard disk for recording, unlike traditional analog video recorders. It's often called a DVR because it's a com...[Details]
For autonomous vehicles to safely navigate the road, they must identify far more complex objects than just traffic lights, pedestrians, and other familiar objects. Among these obstacles is a crucia...[Details]
Based on the commutation technology, thyristor rectifiers are classified into two main types. Line-commutated and force-commutated inverters are commonly used, while other commutated inverters, nam...[Details]
With the advancement of science and technology and the promotion of green, energy-saving, and circular development, the demand for precise control and accurate measurement is increasing. In the pow...[Details]
The composition of the water heater
The water heater itself is divided into the following parts:
1. Water tank.
This is where the water heater is filled with water and where the wate...[Details]
0 Introduction
With a rapidly aging population, a young couple is now required to care for an increasing number of elderly people, leading to a growing difficulty in providing care for them. E...[Details]
With the growth of the Internet of Things (IoT), wearable, and portable devices, consumers are growing weary of cluttered cables and the need for frequent battery recharges. The benefits of wireles...[Details]
We know that the power output by the engine does not directly act on the wheels to drive the car, but needs to pass through a series of power transmission mechanisms. So how is the power transmitte...[Details]
As automotive technology develops at an ever-increasing pace, the performance requirements for automotive internal structures, components, and accessories are becoming increasingly demanding. The d...[Details]
Thoughts triggered by the Wuhan Radish Run incident
It's so hot, even Ferraris spontaneously combust. A recent incident on a Wuhan overpass: a red Ferrari...[Details]
Let’s first take a look at the development concept of the EVD series.
The EVD control module is specially developed for operation in extreme environments. Components that meet these requiremen...[Details]
Abstract: This design uses field-effect transistors to create a tube-like audio power amplifier. The preamplifier uses a single Class A transistor, while the power stage utilizes Class AB push-pull...[Details]
The question of the benefits and drawbacks of DC and AC charging for electric vehicles is a common concern among electric vehicle users. Currently, there are two types of charging stations and meth...[Details]
This article describes how to achieve constant-pressure water supply through PID control using an Allen-Bradley PLC-5 processor in conjunction with a SAMI STAR inverter. To ensure safe and reliable...[Details]
Microcontroller MCU
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