OTG, or On The Go, is a technology developed in recent years. Its main application is to connect different USB devices and mobile devices for data exchange. It is mainly used on some high-end mobile phones and tablets. On OTG enabled tablets or mobile phones, we can connect various USB devices, such as mouse, keyboard, USB flash disk, etc., which is still useful for mobile office. Especially for the reading of USB flash disk, card reader and other devices, mobile devices can be used directly when there is no computer around.
Test phone: Galaxy Note II system: Android 4.1.1
Since most mobile phones or tablets with OTG functions are Android systems, "crossover" products of mobile phones and tablets are adopted here As a test object. In addition to the Galaxy Note II, other high-end mobile phones such as the Galaxy S III, D1Q and Xiaomi 2 all support OTG functions（ Nexus 4 : I'll hide first). More tablets support OTG. The surface we tested earlier is particularly outstanding in this respect, supporting up to 10 USB devices. See 。
Connect the wireless keyboard and mouse, and the mouse movement is still sensitive, but some input methods use the keyboard to type will have serious delay, and it has not yet been tried out which input method supports the Chinese input of the USB keyboard.
It is a common use to connect USB flash drives, and the effect is good.
View files on USB flash drive
Connect the hard disk. Because the OTG power supply of the mobile phone is insufficient, the hard disk needs to be lit by an external power supply. It should also be noted that not all OTGs of mobile phones support ntfs. Galaxy Note II only supports FAT32 file systems and cannot support single files above 4G.
Move files from your hard disk drive.
Limit test: connect SD card, U disk, USB keyboard and mouse and mobile hard disk with USB connector. The test results show that all the equipment can be used normally.
Three USB OTG storage devices appear.
Connect the camera, you can view the photos in the SLR at any time, and copy them to the mobile phone for processing. Of course, in addition to simply reading images, 。
After connecting the camera, identify it as "camera"
Learn more about new cool devices, stay tuned
Related links:
Enjoy your own son's style Google Nexus 4 reviews
Anandtech is unreliable! Nexus 4 Unpacking and Hands on Test
Aikepu: How should a new mobile phone be checked?
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IKEP: How to measure the performance of a mobile phone?
