serial_port_win32
A SerialPort library using win32 API.
Getting Started
Get Ports
final ports = SerialPort.getAvailablePorts();
print(ports);
/// result like [COM3, COM4]
Create Serial Port
The port instance is Singleton Pattern. Don't re-create port for same Com name.
final port = SerialPort("COM5", openNow: false, ByteSize: 8);
// port.open()
port.openWithSettings(BaudRate: CBR_115200);
// final port = SerialPort("COM5"); /// auto open with default settings
Set parameters
port.BaudRate = CBR_115200;
port.ByteSize = 8;
port.StopBits = ONESTOPBIT;
port.Parity = NOPARITY;
port.ReadIntervalTimeout = 10;
/// and so on, parameters like win32.
Read
port.readBytesOnListen(8, (value) => print(value));
// or
port.readOnListenFunction = (value) {
print(value);
};
// port.readOnListenFunction = (value) {
// print(value);
// };
// Future.delayed(Duration(seconds: 5)).then((value) {
// port.writeBytesFromString('close');
// sleep(Duration(seconds: 1));
// port.close();
// });
Write
Write String
String buffer = "hello";
port.writeBytesFromString(buffer);
Write Uint8List
final uint8_data = Uint8List.fromList([1, 2, 3, 4, 5, 6]);
print(port.writeBytesFromUint8List(uint8_data));
Get Port Connection Status
port.isOpened == false;
Close Serial Port
Close Without Listen
port.close();
Close On Listen
port.closeOnListen(
onListen: () => print(port.isOpened),
)
..onError((err) {
print(err);
})
..onDone(() {
print("is closed");
print(port.isOpened);
});
Small Example
import 'package:serial_port_win32/src/serial_port.dart';
void main() {
var ports = SerialPort.getAvailablePorts();
print(ports);
if(ports.isNotEmpty){
var port = SerialPort(ports[0]);
port.BaudRate = CBR_115200;
port.StopBits = ONESTOPBIT;
port.close();
}
}
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7 Apr 5, 2022
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2 Apr 7, 2022
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