I want to use a Bluetooth module and connect it directly to a lithium battery (4.2v). However, the maximum supply voltage of the Bluetooth module is 3.6V, and the maximum supply voltage is 150mA. I ho
[font=宋体][size=4]I wanted to use the block tail interrupt of the serial port to receive a complete modbus protocol frame tonight. When I came back, I just wanted to adjust it. I didn't expect that whe
1. Why do we need Cache?The access speed of large-capacity memory (such as DRAM) is limited, and is generally much slower than the CPU clock speed; small-capacity memory (such as SRAM) can provide fas
[align=left]Although I still use Bluetooth speakers, I have always had a heart for smart speakers. Since Amazon released the smart speaker echo a few years ago, I have been drooling over this type of
[url]https://v.qq.com/x/page/u0348v9g7dw.html[/url] AD17's new function optimizes routing. What I want to know is, after selecting a part of the routing in the video, what button is pressed to select