I soldered a board and copied the program into the microcontroller, but the circuit board does not respond. My microcontroller is at89c52. I wonder if any expert knows where I went wrong? Please guide...
Is there any way to monitor the status of the 9th pin of the serial port? I not only need to know whether there is data being sent or received (TXD, RXD status), but also need to know the status of ot...
There are always some people in the workplace who like to play tricks, and some people are honest. In fact, there is no good or bad personality. Only by better understanding yourself can you calmly de...
I'm working on a switching power supply recently, so I'll give you some information... about inverters, haha... maybe it's not suitable for you, please forgive me...
I'm looking for a basic e-book on digital electronics (pdf). Can any big brother or sister give me one that can download it? Don’t sign up and get points. Thanks...
While
the solid-state battery
industry is still engaged in a long technological marathon for
the "ultimate solution" for
electric vehicles
, some companies have begun looking for mor...[Details]
Recently,
Xpeng Motors and Xinlian Integrated Circuit jointly announced the mass production of China's first hybrid silicon carbide product.
Designed and developed by Xpeng Motors and joint...[Details]
The 2025 China International Automotive Testing Exhibition will be held at the Shanghai World Expo Exhibition and Convention Center from August 27 to 29, 2025.
Clacton Seafront, UK, ...[Details]
A human-machine interface (HMI) refers to the platform used by people to operate a PLC. This platform provides an interface between programs and humans, serving as a medium for information transmis...[Details]
Chinese characters are extensive and profound, and there are many different names for ESD tubes. How many of them do you know?
As far as I know, ESD diodes are currently known as ESD p...[Details]
Shenzhen Baowei Power Supply high frequency pure sine wave power, communication inverter power supply has two communication interfaces, RS232 and R485 interfaces, their functions and characteristic...[Details]
Speaking of the problem of vehicle spontaneous combustion, whether it is a pure electric vehicle or a fuel vehicle, there will be incidents of spontaneous combustion. For the same spontaneous combu...[Details]
The Waveshare ESP32-P4-ETH is a compact ESP32-P4 development board with Ethernet and PoE support. It looks very similar to the Olimex ESP32-P4-DevKit, minus the pUEXT connector. However, we've also...[Details]
As the core of electric vehicles, batteries are concerned with vehicle use and maintenance. The operation of vehicles is guaranteed by the electricity generated by batteries. For batteries, battery...[Details]
Which is better, copper braided wire flexible connector or copper stranded wire flexible connector? When choosing copper wire flexible connector, people always struggle with whether to use copper b...[Details]
The assisted driving industry in 2025 stands at the dual crossroads of "large-scale implementation" and "safety upgrades." Cities like Beijing and Wuhan have already issued regulations de...[Details]
introduction
Due to their flexibility and security, Java cards are increasingly being used in the smart card field. Once a Java card is released, if multiple applications need to call the same...[Details]
Lisle, Illinois – August 19, 2025 –
Molex Incorporated, a global electronics giant and leader in connected innovation, celebrates the opening of its new China sales office dedicated to the auto...[Details]
introduction
By the end of 2014, people aged 60 and above in China accounted for 15.5% of the total population, reaching 212 million; those aged 65 and above accounted for 10.1% of the total, ...[Details]
introduction
As the concept of "low-carbon travel and green environmental protection" becomes more and more popular, bicycles have become a crucial means of transportation. Currently, urban pu...[Details]
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