Black wire serves as ground just like in any other apparatus. In order to connect an android phone to a standard usb device you need to use a micro or mini usb to usb type a female convertor but this should also be an otg cable.
How To Make Usb Otg Cable 5 Steps With Pictures
Diy otg cable wiring diagram. A lot of people wonder why have micro usb 5 pins instead of 4. In accordance with wiring diagram for otg usb there are just four wires used inside the cable. Actually the extra pin or pin 4 is typically not connected in the normal usb cable but if it is connected to ground pin the phone will turn in a host mode and will be able to read. Wiring diagram of usb otg y cable there are many kinds of electronics available on the market. The cable can be used to transfer information from 1 apparatus to another. Most of them utilize usb cable.
I made another schematic how you should wire things up so the usb will work as a host or otg mode. Typically it utilizes black black red and white cable colors. I havent made it yet though. A mini usb otg cable is available in the market and can cost you around rs150 rs300 but finding vendors who actually sell it is not easy. The red one is to get sure wire with dc ability of 5 volts. Make cable as per schematic in step 4.
In addition it can connect device to a power source for charging function. One end a 35 audio 2female rca s video other end 10 pin round. 36 responses to make your own on the go otg usb cable perry on april 30th 2014 at 558 pm said. Usb device is connected to phone and phone is still charging.
Gallery of Diy Otg Cable Wiring Diagram
