DIY Cable to Use OTG and Simultaneously Charge the Device (Windows and Android)




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You can use this cable with all android and windows devices to use the OTG function and simultaneously charge the devices.

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Step 1: Materials Required

  1. Micro USB male A,
  2. USB Male A,
  3. USB female A
  4. DPDT or 2P2W or 2P2T switch
  5. and some wires.

Links to purchase the items:

DPDT Switch:
Micro USB Male A:

USB Male A-

USB Female A:

Step 2: Wiring Micro USB

Wire the Micro USB male A according to the schematic shown and USB guidelines.

Step 3: Preparing USB Male a and Female A

Strip and tin the wires of the USB male A and female A

Step 4: Wiring

Wire the connectors to the switch as shown in the diagram below. A clear explanation has been given in the video and working has also been demonstrated.

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    7 Discussions


    3 years ago

    I've been needing this for a project! Thanks man :D

    1 reply

    1 year ago

    What does the green (D+) and white (D-) do in a a power cable? Only Red (+) and black (-) are live... Why you connect the green to the switch? What's the purpose?
    Instructables, I am really trying very hard to be nice, here...


    1 year ago

    Instructables should remove this nonsense article...
    It is miss leading and insult for the rest of the people that write useful things here.


    1 year ago


    I was just wondering why does D+ need to be switched as well. Only switching ID to ground will not work?


    1 year ago

    I wonder if it would be possible to do this with a small timer circuit instead of a manual switch....


    2 years ago

    In short:

    1. Make cable as per schematic in Step 4: Wiring.

    2. Switch to 'Charge'.

    3. Connect everything: Phone charges.

    4. Switch to 'OTG': USB device is connected to phone, and phone is still charging.

    (I haven't made it yet though.)