Standard USB, mini-USB interface definition (absolutely classic, worthy of favorites)

There are many USB and mini-USB interfaces on the network.ArticleThere are a lot of textures in it that are either unclear (not photos, but hand-painted) or wrong (the plug cannot be inserted into the socket according to its standard method ), considering the wide use of USB connections and interfaces, we hope to help you reorganize and edit them. The following describes the definition of a standard USB interface. USB is a commonly used PC interface with only four wires and two power supplies. Please note that do not reverse the positive and negative ends, otherwise, the USB device or the PC's nanqiao chip will be burned! The ID foot is used only in the OTG function. The mini-USB interface consists of mini-A, B, and AB interfaces. If your system only uses slave, you can use the B interface. The System Controller will determine the ID foot level to determine what kind of device is inserted. If it is a high level, it will be a B Joint insertion. At this time, the system will take the lead.Mode(MASTER Mode) If the ID is low, the interface is inserted, and then the system uses the HNP dialogue protocol to determine which is the master and which is the slave. These descriptions are summarized by the technical staff and are for reference only. Generally, we use B-type mini-USB ports on our mobile phones. Paste a common USB interface picture below From left to right: miniusb public port (a plug), miniusb public port (B plug), USB public port (B), USB mother port (a socket) USB public port (type A plug)