Reprinted from: Institute of Physics, Chinese Academy of Sciences
We all know that electricity is very dangerous. The safe voltage for the human body under dry conditions is only 36V, and the industri
Solve the circuit principle in the figure.
The whole circuit is an esd protection circuit.
If the input voltage at 1 is a positive pulse and is greater than the reverse working voltage, D2 will be tur
I have an ARM FL2440 board. If I want to make a camera program (Linux), and buy a mainstream camera from the market, with slightly higher pixels and USB2.0, and want to capture images and display them
When uploading files to an external ftp server, it is found that small files (about a few KB) cannot be uploaded, but slightly larger files can be uploaded. When uploading a few KB file, the server pr