[font=微软雅黑] If you travel a lot, are you used to those unreasonable roaming charges for your mobile phone? However, sometimes a mobile phone is absolutely necessary - we all have to pay roaming charge
Hello, big brothers and big sisters! I am very polite here! I will definitely give you points! I am writing a program to read the serial port, but I encountered a problem in the sizeof() function. Whe
After more than a year of research and development, our board 4412 is on the market, and 5250 will be on the market soon. Here are some pictures of our boards. Taobao link: [url=http://item.taobao.com