In the device instance path of the device manager, there is something like 20413258574D below.
Taking the virtual serial port as an example, the VID and PID can find the corresponding device in the co...
In China, Web 2.0 is growing rapidly. Forums and blogs with Chinese characteristics have hundreds of millions of page views every day, and many netizens are happy to express their opinions on this new...
Original URL: https://zhuanlan.zhihu.com/p/85308440Figure 2-1 is a simplified block diagram of a superheterodyne spectrum analyzer. "Heterodyne" means mixing, that is, converting frequencies, and "sup...
TDA2030 is an audio amplifier circuit, which adopts V-type 5-pin single in-line plastic package structure. As shown in the figure, it can be divided into H type and V type according to the shape of th...