1 platform (also backported to Android 2 3 4) introduces Android Open Accessory support, which allows external USB hardware (an Android USB accessory) to interact with an Android-powered device in a special 'accessory' mode.. Accessories must also provide 500mA at 5V for charging power Many previously released Android-powered devices are only capable of acting as a USB device and cannot initiate connections with external USB devices.. For more information, see the USB Accessory Developer Guide The following list of distributers are currently producing Android Open Accessory compatible development boards:The Arduino Store provides the Arduino Mega ADK (in EU nations or non-EU nations) that is based on the ATmega2560 and supports the ADK firmware.. The Arduino Mega ADK is compatible Not sure about the Ardupilot Mega From their page:The Android 3.. DIY Drones provides an Arduino-compatible board geared towards RC (radio controlled) and UAV (unmanned aerial vehicle) enthusiasts.. SlickDevSlickDev. Android USB accessories are specifically designed to attach to Android-powered devices and adhere to a simple protocol (Android accessory protocol) that allows them to detect Android-powered devices that support accessory mode.. Android Open Accessory support overcomes this limitation and allows you to build accessories that can interact with an assortment of Android-powered devices by allowing the accessory to initiate the connection.. Note: Accessory mode is ultimately dependent on the device's hardware and not all devices will support accessory mode.. Apparently with Android 2 3 4 and 3 1 one can now access USB accessories I have a Ardupilot Mega (based on Arduino) board with a USB cable connected to my laptop, and I can connect to it using a simple serial communications program over COM7 and 115,200 baud.. Is it possible to write an Android app that will communicate over USB to my Ardupilot Mega board?I've seen many similar threads, but most of them were pre-USB host.. When an Android-powered powered device is in accessory mode, the connected accessory acts as the USB host (powers the bus and enumerates devices) and the Android-powered device acts as the USB device.. It supports FTDI and CDC-ACM usb serial devices using Android's USB host support; no root or ADK necessary.. It enables common USB-to-serial adapters to work with Android devices that have USB host mode without needing to root.. SparkFun's IOIO board now has beta support for the ADK firmware ZootZootYou can check out the library described in Slick USB 2 Serial Library.. There is also a discussion list where you can get help mik3ymik3yMaybe Check out the Android Open Accessories announcement on the Android Developers Blog.. This allows me into the command-line interface, and I can issue commands and get logs.. Hi, I have been searching a way to read serial data using USB host shield connected to Arduino Uno, but did not have much luck.. Hein du PlessisHein du Plessis 4 Answers usb-serial-for-android is my open source library written for exactly this need.. It can talk most Arduinos The project is still in its early days, but the basic support has worked well enough for several projects.. RT Corp provides an Arduino-compatible board based on the Android ADK board design.. Devices that support accessory mode can be filtered using a 'uses-feature' element in your corresponding application's Android manifest.. Seeed Studio provides an Arduino-compatible board that supports the ADK firmware.. Microchip provides a PIC based USB microcontroller board Modern Device provides an Arduino-compatible board that supports the ADK firmware.
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