I passed by a scrap yard and saw a B-ultrasound machine with a broken screen. I estimated that the screen was damaged intentionally by a hammer. You know the reason. If it is broken, it must be scrapped and a new one must be bought. 
With the idea of not taking advantage of the environment, I bargained with the scrap dealer and bought it back for 50 yuan to play with. On the one hand, I wanted to see how domestic high-tech is. On the other hand, I thought that if I had an STM32 microcontroller, it would be useful when I was tinkering with toys. After all, chips are so expensive now, and this 50 yuan is really worth the money.
Well, without further ado, on a sunny morning, I prepared to unpack it and take a look at the appearance. I can see that this is a machine made in Shenzhen. I don’t know what brand it is.
Next, continue to disassemble
At this point, I have basically finished the disassembly. I thought about this keyboard and decided that I could use it to make a toy, so I didn't disassemble it for scrap. In the end, I got a motherboard, two fans, a power board, an iron shell, aluminum sheets, and a bunch of screws. There was no STM32F4, F7 chip as I expected. It seems that I thought too much. I threw the iron and aluminum back to the scrap dealer in exchange for 20 yuan. In total, I spent 30 yuan to get the keyboard, motherboard, and power board. So, do you think it's worth it?
If you have any ideas, please write your opinions in the comment section
提升卡
变色卡
千斤顶
京公网安备 11010802033920号
