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- Xamarin Android Serial Port Example
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Serial Port wrapper for Xamarin.Android. Contribute to officialdoniald/Xamarin.Android.SerialPort development by creating an account on GitHub. If there is a serial port on the Android device and if you can use that with a native (Java) app, you will be able to use it with Xamarin.Android. Xamarin USB Serial for Android This is a wrapper and example projects of the usb-serial-for-android for Xamarin. Usb-serial-for-android is a driver library for communication with Arduinos and other USB serial hardware on Android, using the Android USB Host API available on Android 3.1+.
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usingJava.Lang; |
usingJava.Nio; |
usingJava.Nio.Charset; |
usingSerial; |
usingSystem; |
usingNativeSerialPort=Serial.Serial; |
usingSerialPortBuilder=Serial.Serial.Builder; |
namespaceSerialPort.SerialPortWrapper |
{ |
/// <summary> |
/// Native Serial Port wrapper. More information: https://github.com/chzhong/serial-android. |
/// </summary> |
publicclassSerialPort |
{ |
/// <summary> |
/// This is the native SerialPort. We can use this as a SerialPort. |
/// </summary> |
privateNativeSerialPort_serialPort; |
/// <summary> |
/// Stop the reading from the Serial Port. |
/// </summary> |
privatebool_stopOnReceive=true; |
/// <summary> |
/// Read from the Serial Port and send the readed datas to the subscribers. |
/// </summary> |
publiceventEventHandler<SerialPortEventArgs> OnReceived; |
protectedvirtualvoidOnReceived_Event(SerialPortEventArgse) |
{ |
OnReceived?.Invoke(this, e); |
} |
/// <summary> |
/// Read from the Serial Port. |
/// </summary> |
private System.Threading.ThreadOnReceiveThread; |
/// <summary> |
/// Create new SerialPort from the native library: libserial-release.aar. |
/// Creates a Serial object and opens the port if a port is specified, otherwise it remains closed until serial::Serial::open is called. |
/// @throws SerialException Generic serial error. |
/// @throws SerialIOException I/O error. |
/// @throws IllegalArgumentException Invalid arguments are given. |
/// </summary> |
/// <paramname='device'>A string containing the address of the serial port, which would be something like 'COM1' on Windows and '/dev/ttyS0' on Linux.</param> |
/// <paramname='baudrate'>An unsigned 32-bit integer that represents the baudrate.</param> |
/// <paramname='stopbits'>Number of stop bits used, default is stopbits_one, possible values are: stopbits_one, stopbits_one_point_five, stopbits_two.</param> |
/// <paramname='parity'>Method of parity, default is parity_none, possible values are: parity_none, parity_odd, parity_even.</param> |
/// <paramname='byteSize'>Size of each byte in the serial transmission of data, default is eightbits, possible values are: fivebits, sixbits, sevenbits, eightbits.</param> |
/// <paramname='flowControl'>Flowcontrol Type of flowcontrol used, default is flowcontrol_none, possible values are: flowcontrol_none, flowcontrol_software, flowcontrol_hardware.</param> |
/// <paramname='timeout'>A serial::Timeout struct that defines the timeout conditions for the serial port. inter_byte_timeout,read_timeout_constant,read_timeout_multiplier,write_timeout_constant,write_timeout_multiplier</param> |
publicSerialPort( |
stringdevice, |
intbaudrate, |
Stopbitsstopbits, |
Parityparity, |
ByteSizebyteSize, |
FlowControlflowControl, |
Timeouttimeout) |
{ |
SerialPortBuilderSerial=newSerialPortBuilder( |
device, |
baudrate, |
stopbits, |
parity, |
byteSize, |
timeout, |
flowControl); |
OnReceiveThread=newSystem.Threading.Thread(()=> |
{ |
while (!_stopOnReceive) |
{ |
varbuffer=Read(); |
if (buffer!=null&&buffer.Length>0) |
{ |
OnReceived(this, newSerialPortEventArgs() { Data=buffer }); |
} |
} |
}); |
OnReceiveThread.IsBackground=true; |
OnReceiveThread.Start(); |
_serialPort=Serial.NativeSerialPort; |
} |
/// <summary> |
/// Read a given amount of bytes from the serial port into a given buffer. The read function will return in one of three cases: The number of requested bytes was read. In this case the number of bytes requested will match the size_t returned by read. A timeout occurred, in this case the number of bytes read will not match the amount requested, but no exception will be thrown. One of two possible timeouts occurred: The inter byte timeout expired, this means that number of milliseconds elapsed between receiving bytes from the serial port exceeded the inter byte timeout. The total timeout expired, which is calculated by multiplying the read timeout multiplier by the number of requested bytes and then added to the read timeout constant. If that total number of milliseconds elapses after the initial call to read a timeout will occur. An exception occurred, in this case an actual exception will be thrown. |
/// @throws SerialIOException I/O Error. |
/// </summary> |
/// <paramname='buffer'>An array of at least the requested size.</param> |
/// <paramname='offset'>the offset of the buffer to receive data.</param> |
/// <paramname='size'>How many bytes to be read.</param> |
/// <returns>A size_t representing the number of bytes read as a result of the call to read.</returns> |
publicintRead(byte[] buffer, intoffset, intsize) |
{ |
return_serialPort.Read(buffer, offset, size); |
} |
/// <summary> |
/// Read all data available from the serial port. |
/// @throws SerialIOException I/O Error. |
/// </summary> |
/// <returns>A buffer that contains all available data.</returns> |
publicbyte[] Read() |
{ |
return_serialPort.Read(); |
} |
/// <summary> |
/// Read a given amount of bytes from the serial port into a give buffer. |
/// @throws SerialIOException I/O Error. |
/// </summary> |
/// <paramname='buffer'>A reference to a std::vector of uint8_t.</param> |
/// <paramname='size'>A size_t defining how many bytes to be read.</param> |
/// <returns>A size_t representing the number of bytes read as a result of the call to read.</returns> |
publicintRead(ByteBufferbuffer, intsize) |
{ |
return_serialPort.Read(buffer, size); |
} |
/// <summary> |
/// Read a given amount of bytes from the serial port into a give buffer. |
/// @throws SerialIOException I/O Error. |
/// </summary> |
/// <paramname='buffer'>A reference to a std::string.</param> |
/// <paramname='size'>A size_t defining how many bytes to be read.</param> |
/// <paramname='charset'>The charset of the data.</param> |
/// <returns>A size_t representing the number of bytes read as a result of the call to read.</returns> |
publicintRead(StringBuilderbuffer, intsize/*= 1*/, Charsetcharset) |
{ |
return_serialPort.Read(buffer, size, charset); |
} |
/// <summary> |
/// Read a given amount of bytes from the serial port and return a string containing the data. |
/// @throws SerialIOException I/O Error. |
/// </summary> |
/// <paramname='size'>A size_t defining how many bytes to be read.</param> |
/// <paramname='charset'>A std::string containing the data read from the port.</param> |
/// <returns></returns> |
publicstringRead(intsize, Charsetcharset) |
{ |
return_serialPort.Read(size, charset); |
} |
/// <summary> |
/// Reads in a line or until a given delimiter has been processed. Reads from the serial port until a single line has been read. |
/// @throws SerialIOException I/O Error. |
/// </summary> |
/// <paramname='buffer'>A std::string reference used to store the data.</param> |
/// <paramname='size'>A maximum length of a line, defaults to 65536 (2^16).</param> |
/// <paramname='eol'>A string to match against for the EOL.</param> |
/// <returns>A size_t representing the number of bytes read.</returns> |
publicintReadLine(StringBuilderbuffer, intsize/*= 65536*/, stringeol/*= 'n'*/) |
{ |
return_serialPort.Readline(buffer, size, eol); |
} |
/// <summary> |
/// Reads in a line or until a given delimiter has been processed. Reads from the serial port until a single line has been read. |
/// @throws SerialIOException I/O Error. |
/// </summary> |
/// <paramname='size'>A maximum length of a line, defaults to 65536 (2^16).</param> |
/// <paramname='eol'>A string to match against for the EOL.</param> |
/// <returns>A std::string containing the line.</returns> |
publicstringReadLine(intsize/*= 65536*/, stringeol/*= 'n'*/) |
{ |
return_serialPort.Readline(size, eol); |
} |
/// <summary> |
/// Reads in multiple lines until the serial port times out. This requires a timeout > 0 before it can be run.It will read until a Timeout occurs and return a list of strings. |
/// @throws SerialIOException I/O Error. |
/// </summary> |
/// <paramname='size'>A maximum length of combined lines, defaults to 65536 (2^16)</param> |
/// <paramname='eol'>A string to match against for the EOL.</param> |
/// <returns>A array containing the lines.</returns> |
publicstring[] ReadLines(intsize/*= 65536*/, stringeol/*= 'n'*/) |
{ |
return_serialPort.Readlines(size, eol); |
} |
/// <summary> |
/// Write a byte[] to the serial port. |
/// @throws SerialIOException I/O Error. |
/// </summary> |
/// <paramname='data'>A const reference containing the data to be written to the serial port.</param> |
/// <paramname='size'>A size_t that indicates how many bytes should be written from the given data buffer.</param> |
/// <returns>A size_t representing the number of bytes actually written to.</returns> |
publicintWrite(byte[] data, intsize) |
{ |
return_serialPort.Write(data, size); |
} |
/// <summary> |
/// Write the string on the SerialPort. |
/// </summary> |
/// <paramname='text'></param> |
publicvoidWrite(stringtext) |
{ |
_serialPort.Write(text); |
} |
/// <summary> |
/// Write the string and a new line on the SerialPort. |
/// </summary> |
/// <paramname='text'></param> |
publicvoidWriteLine(stringtext) |
{ |
_serialPort.Write(text+'n'); |
} |
/// <summary> |
/// Flush the input and output buffers. |
/// </summary> |
publicvoidFlush() |
{ |
_serialPort.Flush(); |
} |
/// <summary> |
/// Flush only the input buffer. |
/// </summary> |
publicvoidFlushInput() |
{ |
_serialPort.FlushInput(); |
} |
/// <summary> |
/// Flush only the output buffer. |
/// </summary> |
publicvoidFlushOutput() |
{ |
_serialPort.FlushOutput(); |
} |
/// <summary> |
/// Set the RTS handshaking line to the true level. |
/// </summary> |
publicvoidSetRTS() |
{ |
_serialPort.SetRTS(); |
} |
/// <summary> |
/// Set the RTS handshaking line to the given level. |
/// </summary> |
/// <paramname='level'></param> |
publicvoidSetRTS(boollevel) |
{ |
_serialPort.SetRTS(level); |
} |
/// <summary> |
/// Set the DTR handshaking line to the given level. |
/// </summary> |
publicvoidSetDTR() |
{ |
_serialPort.SetDTR(); |
} |
/// <summary> |
/// Set the DTR handshaking line to the given level. |
/// </summary> |
/// <paramname='level'></param> |
publicvoidSetDTR(boollevel) |
{ |
_serialPort.SetDTR(level); |
} |
/// <summary> |
/// Sends the RS-232 break signal. |
/// </summary> |
/// <paramname='duration'></param> |
publicvoidSendBreak(intduration) |
{ |
_serialPort.SendBreak(duration); |
} |
/// <summary> |
/// Set the break condition to true level. |
/// </summary> |
publicvoidSetBreak() |
{ |
_serialPort.SetBreak(); |
} |
/// <summary> |
/// Set the break condition to a given level. |
/// </summary> |
/// <paramname='level'></param> |
publicvoidSetBreak(boollevel) |
{ |
_serialPort.SetBreak(level); |
} |
/// <summary> |
/// Close the Serial Port. |
/// </summary> |
publicvoidClose() |
{ |
_serialPort.Close(); |
} |
/// <summary> |
/// Stop the Receiving Thread. |
/// </summary> |
publicvoidStopReceive() |
{ |
_stopOnReceive=true; |
} |
/// <summary> |
/// Start the Receiving Thread. |
/// </summary> |
publicvoidStartReceive() |
{ |
_stopOnReceive=false; |
} |
/// <summary> |
/// Blocks until CTS, DSR, RI, CD changes or something interrupts it. |
/// Can throw an exception if an error occurs while waiting. |
/// You can check the status of CTS, DSR, RI, and CD once this returns. |
/// Uses TIOCMIWAIT via ioctl if available (mostly only on Linux) with a |
/// resolution of less than +-1ms and as good as +-0.2ms. Otherwise a |
/// polling method is used which can give +-2ms. |
/// @throws SerialException |
/// </summary> |
/// <returns>Returns true if one of the lines changed, false if something else occurred.</returns> |
publicboolWaitForChange() |
{ |
return_serialPort.WaitForChange(); |
} |
} |
} |
Xamarin Android Serial Port Example
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This is a driver library to allow your Xamarin Android app to communicate with many common USB serial hardware. It uses the Android USB Host APIavailable on Android 3.1+.
No root access, ADK, or special kernel drivers are required; all drivers are implemented inc#. You get a raw serial port with
Read()
, Write()
, and other basicfunctions for use with your own protocols. The appropriate driver is picked based on the device's Vendor ID and Product ID.This is a Xamarin C# port of Mike Wakerly's Java usb-serial-for-android library. It follows that library very closely. The main changes were to make the method names follow C# standard naming conventions. Some Java specific data types were replaced with .NET types and the reflection code is .NET specific. Code examples written for the Java version of the library should translate more or less faithfully to C#.
It also includes code derived from LusoVU's XamarinUsbSerial library. XamarinUsbSerial was a C# wrapper for the Java usb-serial-for-android. It used an older version of the usb-serial-for-android .jar file.
UsbSerialForAndroid is a 100% C# port of the original java code. Dmg 04.
Structure
This solution contains two projects.
- UsbSerialForAndroid - A port of the Java library usb-serial-for-android
- UsbSerialExampleApp - A Xamarin version of the example app that comes with usb-serial-for-android
Getting Started
1. Reference the library to your project
Best wedding video editing software for mac. 2. Copy the device_filter.axml from the example app to your Resources/xml folder. Make sure that the Build Action is set to AndroidResource
3. Add the following attribute to the main activity to enable the USB Host
Xamarin Android Serial Port Orange
4. Add the following IntentFilter to the main activity to receive USB device attached notifications
5. Add the MetaData attribute to associate the device_filter with the USB attached event to only see the devices that we are looking for Open any file app mac.
6. Refer to MainActivity.cs in the example app to see how connect to a serial device and read data from it.
Working with unrecognized devices
https://jbydjcx.weebly.com/blog/pink-storytellers-full-episode. The UsbSerialForAndroid has been compiled with the Vendor ID/Product ID pairs for many common serial devices. Dowload windows migration assistant for macos mojave. If you have a device that is not defined by the library, but will work with one of the drivers, you can manually add the VID/PID pair.
UsbSerialProber is a class to help you find and instantiate compatibleUsbSerialDrivers from the tree of connected UsbDevices. Normally, you will usethe default prober returned by
UsbSerialProber.getDefaultProber()
, whichuses the built-in list of well-known VIDs and PIDs that are supported by ourdrivers.Parallel Port
To use your own set of rules, create and use a custom prober:
Of course, nothing requires you to use UsbSerialProber at all: you caninstantiate driver classes directly if you know what you're doing; just supplya compatible UsbDevice.
Xamarin Android Application
Compatible Devices
Xamarin Android Serial Port Communication
- Serial chips: FT232R, CDC/ACM (eg Arduino Uno) and possibly others.See CompatibleSerialDevices.
- Android phones and tablets: Nexus 7, Motorola Xoom, and many others.See CompatibleAndroidDevices.
Additional information
This is a port of the usb-serial-for-android library and code examples written for it can be adapted to C# without much effort.
For common problems, see theTroubleshootingwiki page for usb-serial-for-android library.
https://jbydjcx.weebly.com/blog/goldwave-for-windows-10. GoldWave is available from a number of download sites. Choose any one of the following links to download the program: Download GoldWave v6.41 (2019-06-13, 13.20MB, primary server) Download GoldWave v6.41 (2019-06-13, 13.20MB, secondary server) Download GoldWave v6.31 Windows Store version. Recent Changes. GoldWave is a highly rated, professional digital audio editor. It's fully loaded to do everything from the simplest recording and editing to the most sophisticated.
Employee handbook template microsoft word. For other help and discussion, please join the usb-serial-for-android Google Group,usb-serial-for-android.
Author, License, and Copyright
This library is licensed under LGPL Version 2.1. Please see LICENSE.txt for the complete license.
Copyright 2017, Tyler Technologies. All Rights Reserved. Portions of this library are based on the usb-serial-for-android and XamarinUsbSerial libraries. Their rights remain intact.
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