[[["เข้าใจง่าย","easyToUnderstand","thumb-up"],["แก้ปัญหาของฉันได้","solvedMyProblem","thumb-up"],["อื่นๆ","otherUp","thumb-up"]],[["ไม่มีข้อมูลที่ฉันต้องการ","missingTheInformationINeed","thumb-down"],["ซับซ้อนเกินไป/มีหลายขั้นตอนมากเกินไป","tooComplicatedTooManySteps","thumb-down"],["ล้าสมัย","outOfDate","thumb-down"],["ปัญหาเกี่ยวกับการแปล","translationIssue","thumb-down"],["ตัวอย่าง/ปัญหาเกี่ยวกับโค้ด","samplesCodeIssue","thumb-down"],["อื่นๆ","otherDown","thumb-down"]],["อัปเดตล่าสุด 2025-07-27 UTC"],[],[],null,["# Android Open Accessory (AOA) support allows external USB hardware\n(Android USB accessories) to interact with Android-powered devices in\n*accessory mode*. When an Android-powered device is in\naccessory mode, the connected accessory acts as the USB host (powers the bus and\nenumerates devices) and the Android-powered device acts as the USB accessory.\n\nAndroid USB accessories are designed to attach to Android-powered devices.\nSuch accessories adhere to AOA, enabling them to detect Android-powered devices\nthat support accessory mode, and must provide 500mA at 5V for charging power.\nSome previously-released Android-powered devices are capable of acting only\nas a USB device and cannot initiate connections with external USB devices. AOA\nsupport overcomes this limitation, enabling you to build accessories that can\ninitiate connections and interact with an assortment of Android-powered devices.\n| **Note:** Accessory mode is dependent on device hardware; not all devices support accessory mode. Devices that support accessory mode can be filtered using a `\u003cuses-feature\u003e` element in the corresponding application's Android manifest. For details, see the [USB Accessory](http://developer.android.com/guide/topics/connectivity/usb/accessory.html#manifest) developer guide.\n\nAOA has two versions that support different types of communication:\n\n- **[AOAv1](/docs/core/interaction/accessories/aoa).** Supports generic accessory communication and adb debugging.\n- **[AOAv2](/docs/core/interaction/accessories/aoa2).** Supports human interface device (HID) capabilities. Available in Android 4.1 (API Level 16) and higher."]]
