writable read-only property of the
SerialPort interface returns a
WritableStream for sending data to the device connected to the port. Chunks written to this stream must be instances of
DataView. This property is non-null as long as the port is open and has not encountered a fatal error.
The following example shows how to write a string to a port. A
TextEncoder converts the string to a
Uint8Array before transmission.
const encoder = new TextEncoder(); const writer = port.writable.getWriter(); await writer.write(encoder.encode("PING")); writer.releaseLock();
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