Mini USB Host Shield 2.0 ADK

From the shop's description

Mini USB Host Shield 2.0 ADK The Mini USB Host Shield 2.0 ADK is a compact expansion board designed to provide USB host capabilities to Arduino Pro Mini and other 3.3V microcontrollers. Based on the MAX3421E USB host controller, this shield enables Arduino to communicate with USB peripherals such as keyboards, mice, flash drives, and Android devices supporting the Android Open Accessory (ADK) protocol. Operating at 3.3V, the shield interfaces with the Arduino via the SPI protocol. Its small form factor (38mm x 18mm) makes it ideal for space-constrained projects. The shield supports USB hub functionality, allowing multiple USB devices to be connected simultaneously. It is compatible with Android devices running Android 2.3.4 or higher, facilitating data exchange between Arduino and Android smartphones or tablets. Features: Mini USB Host allows (Pro mini version only) to achieve USB HOST function, can communicate with other USB devices, and support USB HUB function Compatible with hardware Mega 1280 Support for Google Android ADK function Support for Android phone type: G1, Nexus One, Nexus S, Motorola Droid X (mobile phone system needs to upgrade to Android 2.3.4, Tablet PC need to upgrade to Android 3.1) Communication Interface: SPI Pin Configuration: Specifications: Parameter Value USB Controller MAX3421E Operating Voltage 3.3V Communication Interface SPI USB Connector USB Type-A female Supported Arduino Boards Pro Mini (3.3V/8MHz), 3.3V FTDI Dimensions 38mm x 18mm Applications: Interfacing Arduino with USB keyboards, mice, and flash drives. Connecting Arduino to Android devices via ADK for data exchange. Developing USB-based Arduino projects requiring host capabilities. Implementing USB hub functionality in embedded systems. Creating compact USB host solutions for space-constrained applications. Package Include: 1x Mini USB Host Shield 2.0 ADK.