USB OTG (USB on the Go) is a standard that enables mobile devices to connect and share documents or data to one device to another. Traditionally mobile devices could only connect to a PC by USB, but USB OTG makes it possible for devices to connect directly to each other.
By using USB OTG, it’s possible to couple your smart phone / tablet with peripheral devices, such as a mouse or a keyboard, which one can then use to control it.
One can even connect to storage devices such as USB sticks or external hard drives with USB OTG. Using a file manager on the device, can directly access data on an external storage device and play movies or music without having to store them on the device. Alternatively, one can use it as a non-cloud based backup storage option for images, music, and other files from Smartphone.
USB OTG products can communicate with each other without the need to be connected to a PC. For example, a mobile phone can connect to a printer or a scanner, as long as all the devices are USB OTG-compatible. USB OTG grew from the increasing need for portable devices to be able to communicate with each other as the culture of technology moves away from a PC-centric world to smart phone.
USB On-The-Go recognizes that a device can perform both master and slave roles, and so subtly changes the terminology. With OTG, a “device” can be either a “host” when acting as a link master, or a “peripheral” when acting as a link slave. The choice between host and peripheral roles is handled entirely by which end of the cable the device is connected to. The device connected to the “A” end of the cable at start-up, known as the “A-device”, acts as the default host, while the “B” end acts as the default peripheral, known as the “B-device”.
One of the important features of USB OTG is that the standard does not require a host PC in order for the devices to communicate. USB OTG devices, known as dual-role peripherals, can act as limited hosts or peripherals themselves depending on how the cables are connected to the devices, and they also can connect to a host PC.
Steps to connect to a device:
- Get the USB OTG cable ready
- Plug your USB drive into the USB port on the cable, and then plug the cable into your phones micro USB port.
- Using USB OTG, you can use applications such as Gallery, Music etc to easily access files on your USB drive and your Smartphone.