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USB Host Shield for Arduino
Amazon.com: HiLetgo 2.0 ADK Mini USB Host Shield SLR Development Tool Compatible SPI Interface for Arduino : Electronics
Amazon.com: ARCELI USB Host Shield for Arduino USB Shield UNO MEGA 2560 Support with Google Android ADK USB HUB : Electronics
USB Host Shield for Arduino Compatible with Google Android ADK UNO MAX3421E | eBay
USB Host Shield - should they arrive plug and play or need some setting up? E.g. soldering the relevant power select and vbus power select to suit application. : r/arduino