Android BLE can only send 20 bytes of data each time. If you want to send hundreds of bytes, if you don't control the flow, packets will be lost. According to the specification, each time a packet of ...
I want to process a 4cm*9cm 4-layer 1.6mm thick small board. How much does it cost to make 30 sets? Is there anyone who can make PCB proofs and give me some guidance?...
[font=微软雅黑]Special thanks to EEWORLD forum member Xinhai Baby for his suggestions: [/font] [A post destined to be extraordinary] [url=https://bbs.eeworld.com.cn/thread-338735-1-1.html]https://bbs.eewo...
[i=s]This post was last edited by sfcsdc on 2020-4-20 16:35[/i]Previously I asked you how a switching power supply can output a voltage lower than the reference voltage.
https://bbs.eeworld.com.cn/thr...
This example is for the STM32F107VC chip. Other STM32 chips need to modify related parameters.Create a new project unit dedicated to memory debugging (optional)Target page, modify the initial download...
The TIA Portal software's shift instructions shift the contents of an accumulator bit by bit to the left or right. The number of bits shifted is determined by N. A left shift of N bits multiplies t...[Details]
From being a global leader to losing the market, Korean battery manufacturers have always wanted to regain the lost market and dignity, but facing Chinese battery manufacturers represented by CAT...[Details]
Tesla and BYD, vying for dominance in the global electric vehicle market, are reportedly considering adopting Samsung's AMOLED (active-matrix organic light-emitting diode) technology for their next...[Details]
A line scan lens is an industrial lens used with line scan cameras. Its imaging principle is to capture the image of the workpiece using a linear sensor and then perform digital signal processing t...[Details]
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With the development of digital and network technologies, broadcasting technology has become increasingly diversified, with the most significant trend being the transition from an...[Details]
On August 25th, Apple's expansion in India encountered new troubles. According to Bloomberg, Foxconn Technology Group has recalled approximately 300 Chinese engineers from India, further hindering ...[Details]
Amidst the wave of intelligent automotive transformation, advanced driver assistance is gradually emerging from cutting-edge technology into the mainstream, becoming a new frontier of industry comp...[Details]
On August 22, the National Energy Administration released the latest data, showing that by the end of July 2025, China's total number of electric vehicle charging infrastructure will reach 16.696 m...[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]
Electric vehicles are now widespread, but they've brought with them a host of problems, the most prominent of which is charging. Small electric vehicles (EVs) are a new form of transportation in a ...[Details]
Charging is a familiar process for new energy vehicles, and as a source of battery energy, charging piles are crucial. New energy vehicle charging can be divided into fast charging and slow chargin...[Details]
UPS stands for Uninterruptible Power Supply, which includes energy storage devices. It is mainly used to provide uninterruptible power supply for devices that require high power stability.
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During daily operation of an R-type power transformer, the voltage used varies as the equipment being used adjusts. This raises the question: can the transformer change voltage at this point? The a...[Details]
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In the field of intelligent driving, regulations are becoming increasingly stringent, and the technical threshold continues to rise. Especially after the traffic accident in March 2025, the Ministr...[Details]