react-native-serialport-windows

Serial Communication for React Native Windows apps

Installation

npm install react-native-serialport-windows

import {
  listPorts,
  openPort,
  closePort,
  write,
  eventEmitter,
} from 'react-native-serialport-windows';

Usage

1. List available ports

Retrieve a list of all available serial ports:

const availablePorts = await listPorts();

1. Open a port

Open a port with the desired settings:

await openPort('COM1', 9600, 8, 1, 0, 0);
// Parameters: portName, baudRate, dataBits, stopBits, parity, flowControl

2. Write data

Send data to the serial port. Data should be an array of byte values:

const data = [0x48, 0x65, 0x6c, 0x6c, 0x6f]; // "Hello"
await write(data);

3. Receive data

Listen for incoming data using the eventEmitter:

useEffect(() => {
  const subscription = eventEmitter.addListener(
    'SerialPortDataReceived',
    ({ data }) => {
      const text = String.fromCharCode(...data);
      console.log('Received:', text);
    }
  );

  return () => subscription.remove();
}, []);

4. Close the port

When finished, ensure the port is closed:

await closePort();

Example

git clone https://github.com/MihirGrand/react-native-serialport-windows.git

cd react-native-serialport-windows

npm install

cd example

npm run windows

Contributing

git checkout -b my-feature-branch

git add .
git commit -m "feat: New feature description"

git push origin my-feature-branch

and create a PR!

License

MIT