serial_port 0.1.0+1

Dart extension library to communicate on serial port.

#Serial Port

SerialPort is a Dart Api to provide access read and write access to serial port. Sorry, Windows is not (yet) supported.

Inspiration come from node-serialport and [node-arduino-firmata] (https://github.com/shokai/node-arduino-firmata).

Compilation

Why ?

Yes, it must be compiled because it's a VM extension, depending of execution platform.

What I need ?

gcc, make and dart must be in PATH

How compile it ?

• Install Dart dependencies

pub get

• Run make, cc files will be compiled, and some dart tests will be launched

Output

[SerialPort]> make
rm -rf lib/src/libserial_port*.*
dart build.dart
Building project "/Users/nicolasfrancois/Documents/SerialPort/lib/src/serial_port.yaml"
Building complete successfully
dart test/test_serial_port.dart
unittest-suite-wait-for-done
PASS: Util Convert bytes to string
PASS: Serial port Just open
PASS: Serial port Just close
PASS: Serial port Just write String
PASS: Serial port Just write bytes
PASS: Serial port Defaut baudrate 9600
PASS: Serial port Fail with unkwnon portname
PASS: Serial port Fail with unkwnon baudrate

All 8 tests passed.
unittest-suite-success

How use it ?

Echo

import 'package:serial_port/serial_port.dart';
import 'dart:async';

main(){
  var arduino = new SerialPort("/dev/tty.usbmodem1421");
  arduino.onRead.map(BYTES_TO_STRING).listen(print);
  arduino.open().then((_) {
    print("Ctrl-c to close");
    new Timer(new Duration(seconds: 2), () => arduino.writeString("Hello !"));
  });
}

void setup(){
  Serial.begin(9600);
}

void loop(){
  while (Serial.available() > 0) {
    Serial.write(Serial.read());
  }
}

List connected serial ports

import 'package:serial_port/serial_port.dart';
import 'dart:async';

main(){
  SerialPort.avaiblePortNames.then((portnames) {
  	print("${portnames.length} devices founded:");
    portnames.forEach((device) => print(">$device"));
  });
}

Nexts developments

• Have a better implementation for writing bytes.
• Wait for TODO(turnidge): Currently handle_concurrently is ignoredfrom Dart VM.
• Support serial port communication parameter like (parity, stopbits, FLOWCONTROLS, ...).
• Look for using [native_extension_with_build_tools]https://github.com/mezoni/native_extension_with_build_tools) ?