Urgent help. Has anyone used the sim900A module? Currently, I only have a hardware design manual and an AT instruction set. It seems that a software design manual is needed. If any of my friends have
The first discussion is mainly to clarify the general way to implement the plan and prepare the necessary prior knowledge.The basic division of labor is as follows:ddllxxrrlow power consumption LCD da
Can you recommend a book on computer organization principles? I have only learned assembly language and microcomputer interface, and have not systematically learned the organization principles. In add
[align=center][b][img]http://img17.poco.cn/mypoco/myphoto/20160513/17/5495913320160513175125076_640.jpg?750x438_120[/img][/b][/align][align=center][b] [/b][/align][align=left]Since I retired from the