Think of USB OTG as a means to use the accessories meant for bigger devices, such as your laptop, PC, gaming console, TV, etc ...
However, with OTG, your Android device can serve as the host, allowing it to interact directly with various USB peripherals without needing a PC. To use it, you must have a cable with a USB-A ...
USB On-The-Go (OTG) is one of the fun aspects of the USB standard. There are feelings about the other aspects, but that one is alright. Regardless, [Francesco] realized one day that the £3 ...