An often overlooked function of mobile phone interface: fun OTG extended application

Chongqing has failed to enter the summer for N times this year, but when OTG fans can be seen everywhere in shopping malls as promotional gifts, the little lion suddenly thinks that the mobile phone OTG interface he has been wanting to write for some time has not been written yet, except for two USB flash drives and fans, friends can pull it to the end of the article, and there are many interesting ways to play!

OTG function that was once dazzling.

With the continuous improvement of mobile phone performance, the OTG function, which was once the selling point of mobile phones and tablets many years ago, gradually faded out of people's field of vision in the form of standard. In fact, it seems that few friends can remember its functional orientation now.

OTG technology realizes data transmission between slave devices without a host.

For example, the digital camera is directly connected to the printer, and the USB port between the two devices is connected through OTG technology to print photos immediately; You can also send data from a digital camera to a mobile device with USB interface through OTG. If you like outdoor travel, you don't need to carry a card reader or a portable notebook to transmit data. Through OTG technology, USB interface accessories can be extended to intelligent terminals, enriching the functions of intelligent terminals.

It should be noted that in addition to data transmission, OTG function is a mobile phone interface and also has power supply function, so its expansibility becomes very interesting.

Dual-purpose OTG U disk for expanding mobile phone capacity

Not everyone can accept the cloud disk. At least the little lion and many friends around him are used to using USB flash drives and other devices when exchanging large-capacity data. At this time, OTGu USB flash drive is very practical.

With the emergence of different interface devices in the market, OTG USB flash drives are not only micro-USB and USB interfaces, but also Apple USB flash drives certified by MFi, OTG C-type USB flash drives and so on. In addition, not only that, during the alternation of the old and new interfaces, many devices also come with adapters to help users realize the connection between devices.

Usually, the price of an ordinary OTG Android Type-c dual-interface USB flash drive with 64GB capacity is around 80 yuan, and users can choose the corresponding products according to their own requirements on interface and speed.

The use of OTG USB flash drive is actually not complicated. After the hardware connection is completed, open the file manager of the mobile phone after the connection, and you can see the new storage with OTG displayed. If OTG is not displayed, then look at the name of the memory and the word USB will be displayed.

Then open the folder where the mobile phone files are located, press and hold the file selection, and then copy. After copying is completed, open the folder where the U disk is located, click Paste, and you can see the progress bar of data transmission.

Brands such as SanDisk and Kingston also provide special application software for OTGu USB flash drives. Users can manage, transmit and back up mobile data and OTGu USB flash drive data through special software. The manufacturer is actually very considerate, and the user can just take it directly.

Connecting the handle makes the mobile phone PC.

In addition to data transmission and backup, OTGu USB flash drive is actually more interesting than watching movies directly. In fact, when we notice the entertainment of OTG function, we have to mention the gameplay of the connecting handle.

Connecting the handle is actually thorough, and when we notice that the handle can be connected to the mobile phone through OTG, the connection of the keyboard and mouse becomes very simple. Of course, in fact, the little lion thinks that the core problem is the display and connection interface after the connection is completed.

First of all, what I want to share with you here is the wireless smart screen projection. Now iQiyi, Tmall and many others have similar products. The cost of one or two hundred yuan can project the mirror image of the mobile phone screen onto the wall. The entertainment experience with a large screen is definitely a dream!

The problem of wireless screen projection is actually very easy to solve, but what many small partners can't think of is the problem of limiting the number of OTG interfaces! After all, there is only one interface. In this case, the handle, keyboard and mouse are all here, and the mobile phone is a little too much, right? At this time, Hub products are very practical.

The price of such a Hub product specially prepared for OTG applications is around 50 yuan, and the connection of multiple devices is quite convenient.

Guest charging treasure mobile phone

It is normal for a mobile phone with OTG interface to be occupied by a small fan in summer. In fact, the little lion reminded everyone before that you should think twice about this kind of play. After all, frequent discharge operation is probably not very good for mobile phone batteries, but once the mobile phone has the function of mobile charging treasure, I'm afraid I can't help but want to use it.

In fact, the fan can turn when it is plugged in. There is nothing to say. Is it really possible to charge one mobile phone to another? Turn on the OTG switch of the mobile phone, and connect another mobile phone with the OTG cable/adapter+data cable to transmit "energy".

Haha, boss, can I borrow your mobile phone to charge me? It feels like the little lion is going to be hacked to death. ...

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