Now we can talk about the official birth of micro-USB. Its appearance on the mobile device market was not difficult to predict. In connection with miniaturization, the former contact types of communication are gradually being replaced by more compact ones. The move to the new serial I/O connector has already been supported by some of the biggest companies on the planet. But why do mobile device manufacturers continue to use seemingly obsolete forms of information exchange? After all, there are already contactless methods of data transmission, for example, IrDA or Blue Tooth.
To answer these questions, you need to consider how the micro-USB connector works. It consists of 5-pin. Two of which are wires for information exchange. Next comes power, and a protective screen. Compared to its predecessor, it has become much smaller, but the principle of its operation has remained the same.
This port is powered by DC voltage (+5V), and its presence in the line reduces possible interference in the transmission of information. The same function is performedprotective screen. Moreover, the presence of power allows you to use the micro-USB connector for chargers.
This is the main advantage of micro-USB over wireless communication devices. This is primarily a great noise immunity, and the ability to use this port as a source of constant voltage to recharge the battery.
The operation of the serial I/O port is controlled by a special controller. A good prospect in increasing the speed of data exchange is the increase in the clock frequency of the device. That is, the miniaturization of the connector is not the last step in the development of this type of communication.
Compared to wireless devices, it should be noted that the operation of IrDA communication is very sensitive even to direct sunlight or a nearby device with a similar principle of operation. Even a turned on camcorder or TV remote control may interfere with normal operation.
BlueTooth gains in distance when transmitting data (several tens of meters) and is better protected from interference than its predecessor (IrDA), due to the higher operating frequency. But it still loses to a wired connection in terms of noise immunity and data transfer rate.
You can use a micro-USB adapter to connect your mobile device to a personal computer, as a rule, they can always be purchased at
specialized stores. Or it comes with the device. It should only be taken into account thatStructurally new connectors are available in Micro-A and Micro-B versions. That is, before purchasing, you must check the compatibility.
As a rule, the micro-USB cable is short, this is due to such a parameter as noise immunity. During operation, it must be located away from mains wires or other sources.
Apparently, the new connector has good prospects and will take root in the mobile device market for a long time. It has good performance characteristics, and in some respects outperforms alternative modes of communication.
