async function connect(){ const port = await navigator.serial.requestPort(); // - Wait for the port to open. await port.open({ baudRate: 9600 }); let decoder = new TextDecoderStream(); const inputDone = port.readable.pipeTo(decoder.writable); const inputStream = decoder.readable; let reader = inputStream.getReader(); const encoder = new TextEncoderStream(); const outputDone = encoder.readable.pipeTo(port.writable); const outputStream = encoder.writable; await readLoop(); } async function clickConnect(){ // CODELAB: Add connect code here. await connect(); } async function readLoop(){ // CODELAB: Add read loop here. while (true) { const { value, done } = await reader.read(); if (value) { log.textContent += value + '\n'; } if (done) { console.log('[readLoop] DONE', done); reader.releaseLock(); break; } } } await function writeToStream(){ // CODELAB: Write to output stream const writer = outputStream.getWriter(); lines.forEach((line) => { console.log('[SEND]', line); writer.write(line + '\n'); }); writer.releaseLock(); }