First of all, I felt novel when I saw this level test, and then I thought of the kids of engineers in our forum... Then I thought of the ESP32 development environment that was complained by engineers,
I suddenly had the urge to do a series of topics on sound visualization. This topic is a bit difficult and covers a wide range of areas. The related FFT and FHT algorithms are also quite complicated,
There is a saying that goes, expensive is in value! Everyone knows that PCB materials such as resin PCB, metal PCB, and ceramic PCB, among which resin is the cheapest and ceramic is the most expensive
On February 9, local time, Dutch lithography giant ASML announced in its 2021 financial report that Chinese company Dong Fang JingYuan Electron (DFJY) was actively selling products in China that could