Sunday, February 02, 2014

[cyvfyakx] USB OTG with external power

Create a USB OTG cable or adapter such that the power is not supplied by the host device but an external power source.  It would be a Y shaped cable.  Essentially, split the USB power wires from the signal wires.

The motivation is to use a external keyboard with a smartphone without draining its battery quickly, as mentioned previously.

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