I recently bought an ARM9 development board (S3C2410), which comes with a LINUX operating system, but I don't know much about it at the moment. And I want to start from the basics step by step, so I w
Requirements are as follows:1. The IO port can directly drive the buzzer and motor;2. Only 7 IO ports are needed;3. Common programming methods.Sorry for the trouble.I found an AT89LP213 before, which
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, there must be a state machine.
For exam
I want to spend 200 gold coins. Can I organize an event? I have received many gifts and prizes. The gold coins are also given by the forum. I get them from the public and use them for the public. It i
When the NPN tube is running in the saturation region, the books will say that both the emitter and the collector must be forward biased. However, according to the marking method in all books, if the