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This plugin will allow you to easily use the USB uart hardware based on FTDI or CDC (and more!) protocols.

Pub

usb_serial #

An Android USB Serial Flutter Plugin

This plugin allows Flutter code to interact with USB serial devices connected to your Android device. For example an FTDI or CDC based USB device.

Getting Started #

Add a dependency to your pubspec.yaml

dependencies:
	usb_serial: ^0.0.1

include the usbserial package at the top of your dart file.

import 'package:usb_serial/usb_serial.dart'

Edit app\build.gradle and add

    compileOptions {
        sourceCompatibility 1.8
        targetCompatibility 1.8
    }

to the 'android' object.

Optional #

Add

	<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" />

to your AndroidManifest.xml

and place device_filter.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <!-- 0x0403 / 0x6001: FTDI FT232R UART -->
    <usb-device vendor-id="1027" product-id="24577" />
    
    <!-- 0x0403 / 0x6015: FTDI FT231X -->
    <usb-device vendor-id="1027" product-id="24597" />

    <!-- 0x2341 / Arduino -->
    <usb-device vendor-id="9025" />

    <!-- 0x16C0 / 0x0483: Teensyduino  -->
    <usb-device vendor-id="5824" product-id="1155" />

    <!-- 0x10C4 / 0xEA60: CP210x UART Bridge -->
    <usb-device vendor-id="4292" product-id="60000" />
    
    <!-- 0x067B / 0x2303: Prolific PL2303 -->
    <usb-device vendor-id="1659" product-id="8963" />
    
    <!-- 0x1366 / 0x0105: Segger JLink -->
    <usb-device vendor-id="4966" product-id="261" />
    
</resources>

in the res/xml directory. This will notify your app when one of the specified devices is plugged in.

Usage #

...
onPressed: () async {
	List<UsbDevice> devices = await UsbSerial.listDevices();
	print(devices);

	UsbPort port;
	if (devices.length == 0) {
		return;
	}
	port = await devices[0].create();

	bool openResult = await _port.open();
	if ( !openResult ) {
		print("Failed to open");
		return;
	}
	
	await port.setDTR(true);
	await port.setRTS(true);

	port.setPortParameters(115200, UsbPort.DATABITS_8,
	  UsbPort.STOPBITS_1, UsbPort.PARITY_NONE);

	// print first result and close port.
	port.inputStream.listen((Uint8List event) {
		print(event);
		port.close();
	});

	await port.write(Uint8List.fromList([0x10, 0x00]));
}
...

Dependencies #

This library depends on:

https://github.com/felHR85/UsbSerial

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Publisher

verified publisherbessems.dev

This plugin will allow you to easily use the USB uart hardware based on FTDI or CDC (and more!) protocols.

Repository (GitHub)
View/report issues

License

unknown (LICENSE)

Dependencies

flutter

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