USB Shield - Arrduino Uno Issue


hi, newbie , learning arduino development, android developer wanted start off connecting phone arduino , blink 1 of led. got usb host shield amazon link

but when connect shield arduino uno , connect phone shield phone doest seem charging. confused wether shield broked or there else doing wrong. nor of adk example works


please out

not meant charging phones.

meant usb communications.

eg getting usb device talk arduino , vice versa.

it can supply limited amount of power hardly enough might think can.



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