Why does the first LED not light up after key1 is pressed? The key1 is connected to port p3.4#include
sbit d1=P1^0; sbit key1=P3^4; void main() {P3=0xff; while(1); { if(key1==0) d1=0; else d1=1; } }...
When LPC17XX LWIP bare metal transplantation starts running, ARP ICMP UDP and SNMP are all connected and run normally for a while, but then the Ethernet is disconnected. I wonder if anyone has encount...
Many IoT applications now generally use LoRa chips, but not LoRaWan network protocols. After investigation, it was found that the reasons for not using the LoRaWAN network protocol are: small number o...
[align=left][/align][align=left][font=微软雅黑][size=4][b][color=#0000ff] [/color][/b][/size][/font][/align][align=left][font=微软雅黑][size=4][b][color=#0000ff]Original intention of the event: [/color][/b]In...
[TI's first low-power design competition] + Real-time clock uses RTC to implement a real-time clock [size=14px] [/size] [size=14px] Set parameters by touch [/size] [size=14px] [/size][backcolor=transp...
There are many different ways of human-computer interaction. The more common ones are listed below:
Mouse interaction: Using a mouse to operate a computer and interact was the most common human...[Details]
Abstract:
With the increasing complexity of smart vehicle electrical and electronic architectures, the full lifecycle management of vehicle electronic control components faces multiple challe...[Details]
As the number of cars increases, environmental pressures are also increasing. At this time, some people are saying that new energy vehicles are energy-efficient and environmentally friendly, and ar...[Details]
As the scale and business applications of national e-government networks continue to expand, the data and services transmitted over them are becoming increasingly sensitive and critical. To protect...[Details]
introduction
The concept of the smart home is gradually developing and gaining market acceptance. We believe its ultimate form lies in the interconnection of all home appliances through open i...[Details]
Normally, we determine our location and where we want to go by comparing our surroundings with observation and simple GPS tools. However, this kind of reasoning is very difficult for self-driving c...[Details]
Methods of DC motor speed regulation:
1. The voltage regulator can be used to change the input voltage and speed directly, which is often used for large kilowatt-level motors.
2. Thyristo...[Details]
Tools/Materials
Yitong Chuanglian MODBUS to PROFIBUS Gateway YT-PB-03
Siemens s7-300
This article describes how to configure the YT-PB-03 MODBUS to PROFIBUS gat...[Details]
New version helps developers build secure and trustworthy embedded systems
Shanghai, China—August 21, 2025—
QNX, a division of BlackBerry Ltd., today announced the release of QNX...[Details]
Hair dryer structure and working principle: It is mainly used for drying and shaping hair, but it can also be used for local drying, heating and treatment in laboratories, physiotherapy rooms, ind...[Details]
With the continuous development of ultrasonic technology, ultrasound has been widely used in fields such as inspection, cleaning, welding, and medical treatment, and has even found its way into tex...[Details]
According to foreign media reports, German chipmaker Infineon has recently completed the acquisition of Marvell Technology's automotive Ethernet business for a total transaction amount of US$2.5 bi...[Details]
Siemens software mainly includes PLC, frequency converter, human-machine interface, etc. The current Siemens software can be said to be very stable.
PLC series range from the Siemens S5 series...[Details]
On August 19, according to foreign media Cyber Security News reported yesterday, a cybersecurity researcher discovered that hundreds of publicly accessible TeslaMate installation programs are leaki...[Details]
Using the STM32F103 as a microprocessor, a low-cost wireless WiFi music player system was designed. This system, combined with the WM-G-MR-08 (wm631) module for WiFi data reception and the VS1003B ...[Details]