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...
[i=s]This post was last edited by lansebuluo on 2022-7-15 22:45[/i]To transplant the LWIP program with the operating system, I found some other posts on the Internet for transplantation. After the cod...
Due to the significant increase in electronic devices in automotive and industrial applications, the automotive and industrial markets continue to play an important role in China's electronics in...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
1 Introduction
As an emerging microfabrication technology, micro-electromechanical system (MEMS) technology has begun to be applied in various fields. It can integrate functions such as inform...[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]
Flooded Batteries
This battery developed in Germany can be used to power flashlights, strobe lights and toys as long as it is filled with water. This battery can be stored for 50 years and can...[Details]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
Introduction
Liquid crystal, as a display device, is widely used in low-power products such as instruments, meters, and electronic equipment with its unique advantages. In the past, the displ...[Details]
In today's body control module (BCM) designs, savvy engineers are moving away from electromechanical relays whenever possible. Their next step is to eliminate fuses. But is eliminating fuses a nece...[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]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[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]
1. Overview
At present, an information revolution is in the ascendant around the world, led by microelectronics, computers and communication technologies, and centered on information technolog...[Details]
1 Introduction
With the improvement of people's quality of life, lamps are no longer just basic indoor lighting tools, but also a kind of practical art for architectural decoration. When ther...[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]