mik3y/usb-serial-for-android · GitHub.
usb-serial-for-android
This is a driver library for communication with Arduinos and other USB serial hardware on Android, using theAndroid USB Host API available on Android 3.1+.
No root access, ADK, or special kernel drivers are required; all drivers are implemented in Java. You get a raw serial port with read(), write(), and other basic functions for use with your own protocols.
Quick Start
1. Download usb-serial-for-android-v010.jar
2. Copy the jar to your Android project’s libs/ directory. (See Android’s FAQ for help).
3. Copy device_filter.xml to your project’s res/xml/ directory.
4. Configure your AndroidManifest.xml to notify your app when a device is attached (see Android USB Host documentation for help).
<activity
android:name="..."
...>
<intent-filter>
<action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
</intent-filter>
<meta-data
android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED"
android:resource="@xml/device_filter" />
</activity>
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5. Use it! Example code snippet:
// Get UsbManager from Android.
UsbManager manager = (UsbManager) getSystemService(Context.USB_SERVICE);
// Find the first available driver.
UsbSerialDriver driver = UsbSerialProber.acquire(manager);
if (driver != null) {
driver.open();
try {
driver.setBaudRate(115200);
byte buffer[] = new byte[16];
int numBytesRead = driver.read(buffer, 1000);
Log.d(TAG, "Read " + numBytesRead + " bytes.");
} catch (IOException e) {
// Deal with error.
} finally {
driver.close();
}
}
For a more complete example, see the UsbSerialExamples project in git, which is a simple application for reading and showing serial data.
A simple Arduino application is also available which can be used for testing.
Compatible Devices
Author, License, and Copyright
usb-serial-for-android is written and maintained by mike wakerly.
This library is licensed under LGPL Version 2.1. Please see LICENSE.txt for the complete license.
Copyright 2011-2012, Google Inc. All Rights Reserved.
Portions of this library are based on libftdi (http://www.intra2net.com/en/developer/libftdi). Please see FtdiSerialDriver.java for more information.
Help & Discussion
For common problems, see the Troubleshooting wiki page.
For other help and discussion, please join our Google Group, usb-serial-for-android.
Are you using the library? Let us know on the group and we’ll add your project toProjectsUsingUsbSerialForAndroid.
