Improve trainer capture metadata and USB flashing

cli/setup_mit_audio

@@ -45,6 +45,7 @@ download_hf_mit_rirs() {
     python - "${HF_RIR_REPO_ID}" "${HF_RIR_API_URL}" "${AUDIO_DIR}" <<-'EOF'
 import json
 import sys
+import time
 import urllib.parse
 import urllib.request
 from pathlib import Path
@@ -67,24 +68,57 @@ files = sorted(
 if not files:
     raise SystemExit("Hugging Face MIT RIR dataset did not list any 16khz WAV files")
 
+print(f"   Found {len(files)} MIT environmental RIR files on Hugging Face mirror", flush=True)
 downloaded = 0
 skipped = 0
-for rel in files:
+
+def download_file(url: str, target: Path, rel: str):
+    tmp = target.with_suffix(target.suffix + ".incomplete")
+    for attempt in range(1, 4):
+        try:
+            if tmp.exists():
+                tmp.unlink()
+            with urllib.request.urlopen(url, timeout=30) as response:
+                with tmp.open("wb") as out:
+                    while True:
+                        chunk = response.read(1024 * 64)
+                        if not chunk:
+                            break
+                        out.write(chunk)
+            if not tmp.exists() or tmp.stat().st_size == 0:
+                raise RuntimeError("empty download")
+            tmp.replace(target)
+            return
+        except Exception as exc:
+            if tmp.exists():
+                tmp.unlink()
+            if attempt == 3:
+                raise RuntimeError(f"download failed for {rel}: {exc}") from exc
+            print(f"   Retry {attempt}/2 for {rel}: {exc}", flush=True)
+            time.sleep(2 * attempt)
+
+total = len(files)
+for idx, rel in enumerate(files, start=1):
     target = audio_dir / rel
     if target.exists() and target.stat().st_size > 0:
         skipped += 1
+        if idx == 1 or idx % 25 == 0 or idx == total:
+            print(f"   MIT RIR download progress: {idx}/{total} files ({downloaded} downloaded, {skipped} reused)", flush=True)
         continue
     target.parent.mkdir(parents=True, exist_ok=True)
     encoded = urllib.parse.quote(rel, safe="/")
     url = f"https://huggingface.co/datasets/{repo_id}/resolve/main/{encoded}"
-    with urllib.request.urlopen(url, timeout=60) as response:
-        target.write_bytes(response.read())
+    if idx == 1 or idx % 25 == 0 or idx == total:
+        print(f"   Downloading MIT RIR {idx}/{total}: {rel}", flush=True)
+    download_file(url, target, rel)
     if not target.exists() or target.stat().st_size == 0:
         raise SystemExit(f"download failed for {rel}")
     downloaded += 1
+    if idx == 1 or idx % 25 == 0 or idx == total:
+        print(f"   MIT RIR download progress: {idx}/{total} files ({downloaded} downloaded, {skipped} reused)", flush=True)
 
-print(f"   Hugging Face MIT environmental RIR download complete ({downloaded} downloaded, {skipped} reused)")
-print(f"   MIT environmental RIR files available: {len(files)}")
+print(f"   Hugging Face MIT environmental RIR download complete ({downloaded} downloaded, {skipped} reused)", flush=True)
+print(f"   MIT environmental RIR files available: {len(files)}", flush=True)
 EOF
 }
 

static/index.html

@@ -509,6 +509,34 @@
       max-width: 420px;
     }
 
+    .firmwareUsbWifiPanel {
+      grid-column: 1 / -1;
+      display: grid;
+      gap: 12px;
+      padding: 14px;
+      border-radius: 14px;
+      border: 1px solid rgba(57,212,160,0.16);
+      background: rgba(57,212,160,0.055);
+    }
+
+    .firmwareUsbWifiToggle {
+      display: flex;
+      align-items: center;
+      gap: 10px;
+      color: var(--text);
+      font-weight: 700;
+    }
+
+    .firmwareUsbWifiToggle input {
+      width: auto;
+    }
+
+    .firmwareUsbWifiGrid {
+      display: grid;
+      grid-template-columns: repeat(2, minmax(180px, 1fr));
+      gap: 12px;
+    }
+
     .studioHero {
       position: relative;
       overflow: hidden;
@@ -1186,6 +1214,7 @@
       .firmwareGrid { grid-template-columns: 1fr; }
       .firmwareLayout,
       .firmwareTargetGrid,
+      .firmwareUsbWifiGrid,
       .firmwareActionsPanel {
         grid-template-columns: 1fr;
       }
@@ -1591,7 +1620,8 @@
             <label class="field">
               <strong>Detected Device</strong>
               <select id="firmwareDeviceSelect">
-                <option value="">No devices scanned yet</option>
+                <option value="">Choose target...</option>
+                <option value="__browser_usb_flash__">Browser USB Flash (new/recovery)</option>
               </select>
             </label>
             <label class="field">
@@ -1623,6 +1653,22 @@
           <button id="cleanFirmwareBtn" type="button">Clear downloaded images</button>
           <button id="openFirmwareConsoleBtn" type="button">Open firmware console</button>
         </div>
+        <section class="firmwareUsbWifiPanel" aria-label="Browser USB Wi-Fi setup">
+          <label class="firmwareUsbWifiToggle">
+            <input id="firmwareUsbWifiEnabled" type="checkbox" checked />
+            <span>Set up Wi-Fi after Browser USB Flash</span>
+          </label>
+          <div class="firmwareUsbWifiGrid">
+            <label class="field">
+              <strong>Wi-Fi SSID</strong>
+              <input id="firmwareUsbSsid" type="text" placeholder="Network name" autocomplete="off" />
+            </label>
+            <label class="field">
+              <strong>Wi-Fi Password</strong>
+              <input id="firmwareUsbPassword" type="password" placeholder="Network password" autocomplete="current-password" />
+            </label>
+          </div>
+        </section>
         <div class="usbFlashHint">Use Browser USB Flash for new satellites, recovery, or devices older than Tater firmware 3.0.3. Chrome or Edge must be used on localhost or HTTPS. In the macOS app, open <code>http://127.0.0.1:8789</code> in Chrome or Edge; port <code>3232</code> is only for OTA updates after firmware is installed.</div>
       </section>
     </div>
@@ -2031,7 +2077,7 @@
   }
 
   function escapeHtml(text) {
-    return String(text || "")
+    return String(text ?? "")
       .replaceAll("&", "&amp;")
       .replaceAll("<", "&lt;")
       .replaceAll(">", "&gt;");
@@ -2056,6 +2102,12 @@
     return { label: item.capture_label || "Captured", cls: "" };
   }
 
+  function formatDetectionProfile(value) {
+    return String(value || "")
+      .replaceAll("_", " ")
+      .replace(/\b\w/g, (ch) => ch.toUpperCase());
+  }
+
   function renderCapturedItems(payload) {
     const data = payload || { items: [], captured_count: 0, negative_count: 0, personal_count: 0 };
     uiState.captured = data;
@@ -2084,6 +2136,18 @@
       if (item.wake_word) meta.push(`<span class="pill">${escapeHtml(item.wake_word)}</span>`);
       if (item.max_probability !== null && item.max_probability !== undefined) meta.push(`<span class="pill">max ${escapeHtml(item.max_probability)}</span>`);
       if (item.average_probability !== null && item.average_probability !== undefined) meta.push(`<span class="pill">avg ${escapeHtml(item.average_probability)}</span>`);
+      if (item.detection_profile) meta.push(`<span class="pill">profile ${escapeHtml(formatDetectionProfile(item.detection_profile))}</span>`);
+      if (item.peak_probability_cutoff !== null && item.peak_probability_cutoff !== undefined) meta.push(`<span class="pill">peak cutoff ${escapeHtml(item.peak_probability_cutoff)}</span>`);
+      if (item.probability_cutoff !== null && item.probability_cutoff !== undefined) meta.push(`<span class="pill">avg cutoff ${escapeHtml(item.probability_cutoff)}</span>`);
+      if (item.active_window_count !== null && item.active_window_count !== undefined && item.min_active_windows !== null && item.min_active_windows !== undefined) {
+        meta.push(`<span class="pill">windows ${escapeHtml(item.active_window_count)}/${escapeHtml(item.min_active_windows)}</span>`);
+      }
+      if (item.rise_score !== null && item.rise_score !== undefined) meta.push(`<span class="pill">rise ${escapeHtml(item.rise_score)}</span>`);
+      if (item.vad_max_probability !== null && item.vad_max_probability !== undefined) meta.push(`<span class="pill">VAD max ${escapeHtml(item.vad_max_probability)}</span>`);
+      if (item.vad_average_probability !== null && item.vad_average_probability !== undefined) meta.push(`<span class="pill">VAD avg ${escapeHtml(item.vad_average_probability)}</span>`);
+      if (Array.isArray(item.probability_history) && item.probability_history.length) {
+        meta.push(`<span class="pill" title="${escapeAttr(item.probability_history.join(", "))}">history ${escapeHtml(item.probability_history.length)}</span>`);
+      }
       const formatSummary = item.final_format ? describeFormat(item.final_format) : "16 kHz, mono, 16-bit";
       const when = formatTimestamp(item.captured_at || item.received_at);
       const actionDisabled = uiState.reviewBusy ? "disabled" : "";
@@ -2449,6 +2513,18 @@
     return port;
   }
 
+  async function browserUsbAuthorizedPorts() {
+    if (!window.isSecureContext || !navigator.serial || typeof navigator.serial.getPorts !== "function") {
+      return [];
+    }
+    return navigator.serial.getPorts();
+  }
+
+  function browserUsbStoredPort(selector = "") {
+    const key = String(selector || "default").trim() || "default";
+    return uiState.browserUsb.ports?.[key] || null;
+  }
+
   function normalizeEsptoolJsModule(module) {
     if (module?.ESPLoader && module?.Transport) {
       return module;
@@ -2507,19 +2583,15 @@
     return chunks.join("");
   }
 
-  async function browserUsbSetSignals(port, signals, timeoutMs = 1200) {
-    if (!port || typeof port.setSignals !== "function") {
-      return false;
-    }
+  async function browserUsbWithTimeout(promise, timeoutMs, message) {
     let timeoutId = 0;
     try {
-      await Promise.race([
-        port.setSignals(signals),
+      return await Promise.race([
+        promise,
         new Promise((_resolve, reject) => {
-          timeoutId = setTimeout(() => reject(new Error("Timed out setting USB serial control signals.")), Math.max(1, Number(timeoutMs) || 1));
+          timeoutId = setTimeout(() => reject(new Error(message)), Math.max(1, Number(timeoutMs) || 1));
         }),
       ]);
-      return true;
     } finally {
       if (timeoutId) {
         clearTimeout(timeoutId);
@@ -2527,6 +2599,18 @@
     }
   }
 
+  async function browserUsbSetSignals(port, signals, timeoutMs = 1200) {
+    if (!port || typeof port.setSignals !== "function") {
+      return false;
+    }
+    await browserUsbWithTimeout(
+      port.setSignals(signals),
+      timeoutMs,
+      "Timed out setting USB serial control signals."
+    );
+    return true;
+  }
+
   async function browserUsbHardResetAfterFlash(transport, loader, port) {
     try {
       appendFirmwareLog("Resetting device after USB flash.");
@@ -2547,6 +2631,42 @@
     }
   }
 
+  function browserUsbSameDevice(left, right) {
+    const leftInfo = left?.getInfo?.() || {};
+    const rightInfo = right?.getInfo?.() || {};
+    const leftVendor = Number(leftInfo.usbVendorId || 0);
+    const leftProduct = Number(leftInfo.usbProductId || 0);
+    const rightVendor = Number(rightInfo.usbVendorId || 0);
+    const rightProduct = Number(rightInfo.usbProductId || 0);
+    return Boolean(leftVendor && leftProduct && leftVendor === rightVendor && leftProduct === rightProduct);
+  }
+
+  async function browserUsbWaitForReconnect(previousPort, selector, timeoutMs = 30000) {
+    const deadline = Date.now() + Math.max(1000, Number(timeoutMs) || 1000);
+    let lastLogAt = 0;
+    while (Date.now() < deadline) {
+      let ports = [];
+      try {
+        ports = await browserUsbAuthorizedPorts();
+      } catch (_error) {
+        ports = [];
+      }
+      const matchingPort = ports.find((port) => browserUsbSameDevice(previousPort, port)) || (ports.length === 1 ? ports[0] : null);
+      if (matchingPort) {
+        const key = String(selector || "default").trim() || "default";
+        uiState.browserUsb.ports[key] = matchingPort;
+        appendFirmwareLog(`Reconnected ${browserUsbPortLabel(matchingPort)} for Wi-Fi setup.`, "USB serial reconnected for Wi-Fi setup...");
+        return matchingPort;
+      }
+      if (Date.now() - lastLogAt > 2500) {
+        lastLogAt = Date.now();
+        appendFirmwareLog("Waiting for Chrome to expose the rebooted USB serial device...", "Waiting for rebooted USB device...");
+      }
+      await sleep(750);
+    }
+    throw new Error("The device rebooted, but Chrome did not expose the reconnected USB serial device. Click Browser USB Flash again and select the device if needed.");
+  }
+
   async function flashBrowserUsbPort(port, artifact) {
     const module = await ensureEsptoolJsLoaded();
     const { ESPLoader, Transport } = module;
@@ -2636,6 +2756,344 @@
     }
   }
 
+  const IMPROV_SERIAL_HEADER = [0x49, 0x4d, 0x50, 0x52, 0x4f, 0x56];
+  const IMPROV_SERIAL_VERSION = 0x01;
+  const IMPROV_SERIAL_TYPE = {
+    CURRENT_STATE: 0x01,
+    ERROR_STATE: 0x02,
+    RPC: 0x03,
+    RPC_RESPONSE: 0x04,
+  };
+  const IMPROV_SERIAL_COMMAND = {
+    WIFI_SETTINGS: 0x01,
+    GET_CURRENT_STATE: 0x02,
+    GET_DEVICE_INFO: 0x03,
+  };
+  const IMPROV_SERIAL_STATE = {
+    STOPPED: 0x00,
+    AWAITING_AUTHORIZATION: 0x01,
+    AUTHORIZED: 0x02,
+    PROVISIONING: 0x03,
+    PROVISIONED: 0x04,
+  };
+  const IMPROV_SERIAL_ERROR = {
+    NONE: 0x00,
+    INVALID_RPC: 0x01,
+    UNKNOWN_RPC: 0x02,
+    UNABLE_TO_CONNECT: 0x03,
+    NOT_AUTHORIZED: 0x04,
+    UNKNOWN: 0xff,
+  };
+  const IMPROV_TEXT_ENCODER = new TextEncoder();
+  const IMPROV_TEXT_DECODER = new TextDecoder();
+
+  function improvSerialStateLabel(stateValue) {
+    switch (Number(stateValue)) {
+      case IMPROV_SERIAL_STATE.STOPPED:
+        return "Stopped";
+      case IMPROV_SERIAL_STATE.AWAITING_AUTHORIZATION:
+        return "Awaiting authorization";
+      case IMPROV_SERIAL_STATE.AUTHORIZED:
+        return "Ready for Wi-Fi credentials";
+      case IMPROV_SERIAL_STATE.PROVISIONING:
+        return "Connecting to Wi-Fi";
+      case IMPROV_SERIAL_STATE.PROVISIONED:
+        return "Wi-Fi connected";
+      default:
+        return `Unknown state ${stateValue}`;
+    }
+  }
+
+  function improvSerialErrorLabel(errorValue) {
+    switch (Number(errorValue)) {
+      case IMPROV_SERIAL_ERROR.NONE:
+        return "No error";
+      case IMPROV_SERIAL_ERROR.INVALID_RPC:
+        return "Invalid Improv command";
+      case IMPROV_SERIAL_ERROR.UNKNOWN_RPC:
+        return "Unknown Improv command";
+      case IMPROV_SERIAL_ERROR.UNABLE_TO_CONNECT:
+        return "Unable to connect to Wi-Fi";
+      case IMPROV_SERIAL_ERROR.NOT_AUTHORIZED:
+        return "Not authorized";
+      case IMPROV_SERIAL_ERROR.UNKNOWN:
+        return "Unknown Improv error";
+      default:
+        return `Improv error ${errorValue}`;
+    }
+  }
+
+  function improvEncodeString(value) {
+    const bytes = IMPROV_TEXT_ENCODER.encode(String(value || ""));
+    if (bytes.length > 255) {
+      throw new Error("Improv Serial values must be shorter than 256 bytes.");
+    }
+    return [bytes.length, ...bytes];
+  }
+
+  function improvBuildRpcPayload(command, strings = []) {
+    const data = [];
+    (Array.isArray(strings) ? strings : []).forEach((value) => {
+      data.push(...improvEncodeString(value));
+    });
+    if (data.length > 255) {
+      throw new Error("Improv Serial command is too large.");
+    }
+    return [command, data.length, ...data];
+  }
+
+  function improvBuildSerialPacket(type, payload = []) {
+    const bytes = [...IMPROV_SERIAL_HEADER, IMPROV_SERIAL_VERSION, type, payload.length, ...payload];
+    const checksum = bytes.reduce((sum, byte) => (sum + byte) & 0xff, 0);
+    return new Uint8Array([...bytes, checksum, 0x0a]);
+  }
+
+  function improvParseRpcPayload(payload) {
+    const bytes = Array.from(payload || []);
+    const command = Number(bytes[0] || 0);
+    const dataLength = Number(bytes[1] || 0);
+    const dataEnd = Math.min(bytes.length, 2 + dataLength);
+    const strings = [];
+    let offset = 2;
+    while (offset < dataEnd) {
+      const length = Number(bytes[offset] || 0);
+      offset += 1;
+      if (offset + length > dataEnd) {
+        break;
+      }
+      strings.push(IMPROV_TEXT_DECODER.decode(new Uint8Array(bytes.slice(offset, offset + length))));
+      offset += length;
+    }
+    return { command, strings };
+  }
+
+  class ImprovSerialParser {
+    constructor() {
+      this.buffer = [];
+    }
+
+    feed(chunk) {
+      const bytes = chunk instanceof Uint8Array ? Array.from(chunk) : [];
+      this.buffer.push(...bytes);
+      const packets = [];
+      while (this.buffer.length >= IMPROV_SERIAL_HEADER.length) {
+        const headerIndex = this.buffer.findIndex((byte, index, rows) =>
+          IMPROV_SERIAL_HEADER.every((headerByte, headerOffset) => rows[index + headerOffset] === headerByte)
+        );
+        if (headerIndex < 0) {
+          this.buffer.splice(0, Math.max(0, this.buffer.length - IMPROV_SERIAL_HEADER.length + 1));
+          break;
+        }
+        if (headerIndex > 0) {
+          this.buffer.splice(0, headerIndex);
+        }
+        if (this.buffer.length < 10) {
+          break;
+        }
+        if (this.buffer[6] !== IMPROV_SERIAL_VERSION) {
+          this.buffer.shift();
+          continue;
+        }
+        const type = Number(this.buffer[7] || 0);
+        const payloadLength = Number(this.buffer[8] || 0);
+        const checksumIndex = 9 + payloadLength;
+        if (this.buffer.length <= checksumIndex) {
+          break;
+        }
+        const checksum = this.buffer
+          .slice(0, checksumIndex)
+          .reduce((sum, byte) => (sum + Number(byte || 0)) & 0xff, 0);
+        if (checksum !== Number(this.buffer[checksumIndex] || 0)) {
+          this.buffer.shift();
+          continue;
+        }
+        const payload = new Uint8Array(this.buffer.slice(9, 9 + payloadLength));
+        const nextOffset = this.buffer[checksumIndex + 1] === 0x0a ? checksumIndex + 2 : checksumIndex + 1;
+        this.buffer.splice(0, nextOffset);
+        packets.push({ type, payload });
+      }
+      return packets;
+    }
+  }
+
+  async function openImprovSerialPort(port) {
+    for (let attempt = 1; attempt <= 8; attempt += 1) {
+      try {
+        await port.open({ baudRate: 115200, bufferSize: 255 });
+        return;
+      } catch (error) {
+        const message = String(error?.message || error || "");
+        if (error?.name === "InvalidStateError" || message.toLowerCase().includes("already open")) {
+          return;
+        }
+        if (attempt >= 8) {
+          throw error;
+        }
+        appendFirmwareLog(`Waiting for USB serial to reconnect (${attempt}/8)...`, "Waiting for USB serial...");
+        await sleep(1000);
+      }
+    }
+  }
+
+  async function setupImprovWifi(port, options) {
+    const ssid = String(options?.ssid || "").trim();
+    const password = String(options?.password || "");
+    if (!ssid) {
+      appendFirmwareLog("Wi-Fi setup skipped.");
+      return;
+    }
+
+    appendFirmwareLog("Waiting for the flashed device to restart into Improv Serial.", "Waiting for Improv Serial...");
+    appendFirmwareLog("If the screen stays off, unplug and reconnect USB once; the trainer will keep watching for Improv.");
+    await sleep(10000);
+    await openImprovSerialPort(port);
+    appendFirmwareLog("USB serial reopened. Checking Improv Serial.", "Checking Improv Serial...");
+
+    const parser = new ImprovSerialParser();
+    const reader = port.readable?.getReader?.();
+    const writer = port.writable?.getWriter?.();
+    if (!reader || !writer) {
+      throw new Error("USB serial reader/writer was not available for Wi-Fi setup.");
+    }
+
+    let stopped = false;
+    let currentState = null;
+    let currentError = IMPROV_SERIAL_ERROR.NONE;
+    let lastStateLabel = "";
+    let responseUrls = [];
+    let seenImprovPacket = false;
+
+    const handlePacket = (packet) => {
+      if (!packet || typeof packet !== "object") {
+        return;
+      }
+      seenImprovPacket = true;
+      if (packet.type === IMPROV_SERIAL_TYPE.CURRENT_STATE) {
+        currentState = Number(packet.payload?.[0] ?? -1);
+        const label = improvSerialStateLabel(currentState);
+        if (label !== lastStateLabel) {
+          lastStateLabel = label;
+          appendFirmwareLog(`Improv: ${label}.`, `Wi-Fi setup: ${label}.`);
+        }
+        return;
+      }
+      if (packet.type === IMPROV_SERIAL_TYPE.ERROR_STATE) {
+        currentError = Number(packet.payload?.[0] ?? IMPROV_SERIAL_ERROR.UNKNOWN);
+        if (currentError !== IMPROV_SERIAL_ERROR.NONE) {
+          appendFirmwareLog(`Improv error: ${improvSerialErrorLabel(currentError)}.`, "Wi-Fi setup failed.");
+        }
+        return;
+      }
+      if (packet.type === IMPROV_SERIAL_TYPE.RPC_RESPONSE) {
+        const response = improvParseRpcPayload(packet.payload);
+        if (response.command === IMPROV_SERIAL_COMMAND.GET_DEVICE_INFO && response.strings.length) {
+          appendFirmwareLog(`Device info: ${response.strings.filter(Boolean).join(" • ")}`);
+        }
+        if (
+          response.command === IMPROV_SERIAL_COMMAND.WIFI_SETTINGS ||
+          response.command === IMPROV_SERIAL_COMMAND.GET_CURRENT_STATE
+        ) {
+          responseUrls = response.strings.filter(Boolean);
+          if (responseUrls.length) {
+            appendFirmwareLog(`Device URL: ${responseUrls[0]}`);
+          }
+        }
+      }
+    };
+
+    const readLoop = (async () => {
+      while (!stopped) {
+        try {
+          const result = await reader.read();
+          if (result?.done) {
+            break;
+          }
+          parser.feed(result?.value).forEach(handlePacket);
+        } catch (error) {
+          if (!stopped) {
+            appendFirmwareLog(`Improv read warning: ${String(error?.message || error)}`);
+          }
+          break;
+        }
+      }
+    })();
+
+    const sendRpc = async (command, strings = []) => {
+      await browserUsbWithTimeout(
+        writer.write(improvBuildSerialPacket(IMPROV_SERIAL_TYPE.RPC, improvBuildRpcPayload(command, strings))),
+        4000,
+        "Timed out writing Improv Serial command."
+      );
+    };
+
+    let pollTimer = 0;
+    try {
+      await sendRpc(IMPROV_SERIAL_COMMAND.GET_DEVICE_INFO);
+      await sendRpc(IMPROV_SERIAL_COMMAND.GET_CURRENT_STATE);
+      const helloDeadline = Date.now() + 8000;
+      while (!seenImprovPacket && Date.now() < helloDeadline) {
+        if (currentError && currentError !== IMPROV_SERIAL_ERROR.NONE) {
+          throw new Error(improvSerialErrorLabel(currentError));
+        }
+        await sleep(150);
+      }
+      if (!seenImprovPacket) {
+        throw new Error("No Improv Serial response from the flashed firmware. Turn off Wi-Fi setup for images with saved Wi-Fi, or flash an image that includes improv_serial.");
+      }
+      appendFirmwareLog("Connected to Improv Serial.", "Connected to Improv Serial.");
+      await sleep(300);
+      appendFirmwareLog(`Sending Wi-Fi credentials for ${ssid}.`, `Sending Wi-Fi credentials for ${ssid}...`);
+      await sendRpc(IMPROV_SERIAL_COMMAND.WIFI_SETTINGS, [ssid, password]);
+      pollTimer = setInterval(() => {
+        void sendRpc(IMPROV_SERIAL_COMMAND.GET_CURRENT_STATE).catch(() => {});
+      }, 1500);
+
+      const deadline = Date.now() + 45000;
+      while (Date.now() < deadline) {
+        if (currentError && currentError !== IMPROV_SERIAL_ERROR.NONE) {
+          throw new Error(improvSerialErrorLabel(currentError));
+        }
+        if (currentState === IMPROV_SERIAL_STATE.PROVISIONED) {
+          const urlSuffix = responseUrls.length ? ` ${responseUrls[0]}` : "";
+          appendFirmwareLog(`Wi-Fi setup complete.${urlSuffix}`, "Wi-Fi setup complete.");
+          return;
+        }
+        await sleep(300);
+      }
+      throw new Error("Timed out waiting for Improv Serial Wi-Fi setup.");
+    } finally {
+      if (pollTimer) {
+        clearInterval(pollTimer);
+      }
+      stopped = true;
+      try {
+        await reader.cancel();
+      } catch (_error) {
+        // Ignore reader cancellation cleanup failures.
+      }
+      try {
+        await readLoop;
+      } catch (_error) {
+        // Ignore read-loop cleanup failures.
+      }
+      try {
+        reader.releaseLock();
+      } catch (_error) {
+        // Ignore lock cleanup failures.
+      }
+      try {
+        writer.releaseLock();
+      } catch (_error) {
+        // Ignore lock cleanup failures.
+      }
+      try {
+        await port.close();
+      } catch (_error) {
+        // Ignore close cleanup failures.
+      }
+    }
+  }
+
   function closeConsole() {
     $("consoleOverlay").classList.remove("open");
     $("consoleOverlay").setAttribute("aria-hidden", "true");
@@ -2648,26 +3106,46 @@
       : "No files selected";
   }
 
+  const FIRMWARE_USB_DEVICE_VALUE = "__browser_usb_flash__";
+
+  function firmwareUsbSelected() {
+    return $("firmwareDeviceSelect").value === FIRMWARE_USB_DEVICE_VALUE;
+  }
+
+  function syncUsbFirmwareControls() {
+    const enabled = $("firmwareUsbWifiEnabled").checked;
+    $("firmwareUsbSsid").disabled = !enabled;
+    $("firmwareUsbPassword").disabled = !enabled;
+    $("usbFirmwareBtn").textContent = enabled ? "Flash + Set Up Wi-Fi" : "Browser USB Flash";
+  }
+
   function renderFirmwareDevices(devices, message) {
     const list = Array.isArray(devices) ? devices : [];
     uiState.firmware.devices = list;
 
-    if (!list.length) {
-      $("firmwareDeviceSelect").innerHTML = `<option value="">No devices detected</option>`;
-      setPill($("firmwareDetectStatus"), message || "No devices detected", "warn");
-      return;
-    }
-
     $("firmwareDeviceSelect").innerHTML = [
-      `<option value="">Choose detected device...</option>`,
+      `<option value="">Choose target...</option>`,
+      `<option value="${FIRMWARE_USB_DEVICE_VALUE}">Browser USB Flash (new/recovery)</option>`,
       ...list.map((device, index) => {
         const label = `${device.name || device.host} (${device.host}:${device.port || 3232})`;
         return `<option value="${index}">${escapeHtml(label)}</option>`;
       }),
     ].join("");
 
+    if (!list.length) {
+      setPill($("firmwareDetectStatus"), message || "No devices detected", "warn");
+      if (!($("firmwareHost").value || "").trim()) {
+        $("firmwareDeviceSelect").value = FIRMWARE_USB_DEVICE_VALUE;
+        applySelectedFirmwareDevice().catch((error) => {
+          setPill($("firmwareStatus"), "USB settings failed", "warn");
+          console.warn("USB settings load failed", error);
+        });
+      }
+      return;
+    }
+
     setPill($("firmwareDetectStatus"), `${list.length} detected`, "ok");
-    if (!($("firmwareHost").value || "").trim()) {
+    if (!($("firmwareHost").value || "").trim() && !firmwareUsbSelected()) {
       $("firmwareDeviceSelect").value = "0";
       applySelectedFirmwareDevice().catch((error) => {
         setPill($("firmwareStatus"), "Device settings failed", "warn");
@@ -2687,6 +3165,14 @@
   async function applySelectedFirmwareDevice() {
     const indexText = $("firmwareDeviceSelect").value;
     if (indexText === "") return;
+    if (indexText === FIRMWARE_USB_DEVICE_VALUE) {
+      $("firmwareHost").value = "";
+      $("firmwarePort").value = "3232";
+      setPill($("firmwareStatus"), "Browser USB selected", "ok");
+      await refreshFirmwareTemplates();
+      syncButtons();
+      return;
+    }
     const device = uiState.firmware.devices[Number(indexText)];
     if (!device) return;
     await flushFirmwareProfileSave();
@@ -2711,6 +3197,7 @@
 
   function applyFirmwareTemplateTarget(template = selectedFirmwareTemplate()) {
     if (!template) return;
+    if (firmwareUsbSelected()) return;
     if (template.target_host) {
       $("firmwareHost").value = template.target_host;
     }
@@ -3023,6 +3510,9 @@
 
   function firmwareTemplateQuery() {
     const params = new URLSearchParams();
+    if (firmwareUsbSelected()) {
+      return "";
+    }
     const host = ($("firmwareHost").value || "").trim();
     const port = ($("firmwarePort").value || "3232").trim();
     if (host) params.set("target_host", host);
@@ -3200,12 +3690,20 @@
       alert("Browser USB flash needs Chrome or Edge on HTTPS or localhost. In the macOS app, use Open in Browser and choose Chrome or Edge.");
       return;
     }
-    const ok = confirm(`USB flash the prebuilt ${template.label || template.value} factory firmware?\n\nThis is for new satellites, recovery, or devices older than Tater firmware 3.0.3. It erases flash and writes the factory image over USB.`);
+    const wifiEnabled = $("firmwareUsbWifiEnabled").checked;
+    const wifiSsid = ($("firmwareUsbSsid").value || "").trim();
+    const wifiPassword = $("firmwareUsbPassword").value || "";
+    if (wifiEnabled && !wifiSsid) {
+      alert("Enter a Wi-Fi SSID or turn off Wi-Fi setup before Browser USB Flash.");
+      return;
+    }
+    const actionLabel = wifiEnabled ? "USB flash and set up Wi-Fi" : "USB flash";
+    const ok = confirm(`${actionLabel} for the prebuilt ${template.label || template.value} factory firmware?\n\nThis is for new satellites, recovery, or devices older than Tater firmware 3.0.3. It erases flash and writes the factory image over USB.`);
     if (!ok) return;
 
     let port;
     try {
-      port = await browserUsbSelectPort(template.value);
+      port = browserUsbStoredPort(template.value) || await browserUsbSelectPort(template.value);
     } catch (error) {
       alert("USB device selection failed: " + error.message);
       return;
@@ -3233,8 +3731,16 @@
       });
       appendFirmwareLogs(artifact.entries || [], "Factory image ready. Starting USB flash...");
       await flashBrowserUsbPort(port, artifact);
-      appendFirmwareLog("Browser USB flash finished.", "Browser USB flash finished.");
-      setPill($("firmwareStatus"), "USB flash finished", "ok");
+      if (wifiEnabled) {
+        port = await browserUsbWaitForReconnect(port, template.value);
+        await setupImprovWifi(port, { ssid: wifiSsid, password: wifiPassword });
+        appendFirmwareLog("Browser USB flash and Wi-Fi setup finished.", "Browser USB flash and Wi-Fi setup finished.");
+        setPill($("firmwareStatus"), "USB flash + Wi-Fi finished", "ok");
+      } else {
+        appendFirmwareLog("Wi-Fi setup skipped by user.");
+        appendFirmwareLog("Browser USB flash finished.", "Browser USB flash finished.");
+        setPill($("firmwareStatus"), "USB flash finished", "ok");
+      }
     } catch (error) {
       appendFirmwareLog(`Browser USB flash failed: ${String(error.message || error)}`, "Browser USB flash failed.");
       setPill($("firmwareStatus"), "USB flash failed", "err");
@@ -3320,6 +3826,11 @@
     const firmwareTemplate = ($("firmwareTemplate").value || "").trim();
     const firmwareSelection = selectedFirmwareTemplate();
     const firmwareAvailable = !firmwareSelection?.prebuilt_firmware || Boolean(firmwareSelection.prebuilt_firmware.available);
+    const usbSelected = firmwareUsbSelected();
+    const usbWifiEnabled = $("firmwareUsbWifiEnabled").checked;
+    const usbWifiSsid = ($("firmwareUsbSsid").value || "").trim();
+    const usbWifiReady = !usbWifiEnabled || Boolean(usbWifiSsid);
+    syncUsbFirmwareControls();
 
     $("ttsBtn").disabled = !hasPhrase || uiState.uploadBusy;
     $("uploadBtn").disabled = !hasSession || !hasSelected || uiState.uploadBusy;
@@ -3331,11 +3842,11 @@
     $("clearNegativeBtn").disabled = uiState.reviewBusy || negativeCount === 0;
     $("refreshSamplesBtn").disabled = uiState.reviewBusy || uiState.uploadBusy;
     $("refreshFirmwareBtn").disabled = uiState.firmwareBusy;
-    $("saveFirmwareSettingsBtn").disabled = uiState.firmwareBusy || !firmwareHost || !firmwareTemplate;
+    $("saveFirmwareSettingsBtn").disabled = uiState.firmwareBusy || usbSelected || !firmwareHost || !firmwareTemplate;
     $("cleanFirmwareBtn").disabled = uiState.firmwareBusy;
     $("openFirmwareConsoleBtn").disabled = false;
-    $("flashFirmwareBtn").disabled = uiState.firmwareBusy || !firmwareHost || !firmwareTemplate || !firmwareAvailable;
-    $("usbFirmwareBtn").disabled = uiState.firmwareBusy || !firmwareTemplate || !firmwareSelection?.prebuilt_firmware?.artifacts?.factory?.path;
+    $("flashFirmwareBtn").disabled = uiState.firmwareBusy || usbSelected || !firmwareHost || !firmwareTemplate || !firmwareAvailable;
+    $("usbFirmwareBtn").disabled = uiState.firmwareBusy || !firmwareTemplate || !firmwareSelection?.prebuilt_firmware?.artifacts?.factory?.path || !usbWifiReady;
   }
 
   function refreshSessionUI(session) {
@@ -3695,6 +4206,10 @@
       alert("Device settings failed: " + error.message);
     });
   });
+  ["firmwareUsbWifiEnabled", "firmwareUsbSsid", "firmwareUsbPassword"].forEach((id) => {
+    $(id).addEventListener("input", syncButtons);
+    $(id).addEventListener("change", syncButtons);
+  });
   $("refreshFirmwareBtn").addEventListener("click", async () => {
     try {
       await refreshFirmwareDevices();

trainer_server.py

@@ -108,26 +108,31 @@ FIRMWARE_TEMPLATE_SPECS = (
         "key": "voicepe",
         "label": "VoicePE",
         "description": "VoicePE satellite prebuilt firmware",
+        "flash_size": "16MB",
     },
     {
         "key": "satellite1",
         "label": "Sat1",
         "description": "Satellite1 prebuilt firmware",
+        "flash_size": "16MB",
     },
     {
         "key": "respeaker_lite",
         "label": "ReSpeaker Lite",
         "description": "ReSpeaker Lite prebuilt firmware",
+        "flash_size": "8MB",
     },
     {
         "key": "koala",
         "label": "Koala Satellite",
         "description": "Koala satellite prebuilt firmware",
+        "flash_size": "16MB",
     },
     {
         "key": "respeaker_xvf3800",
         "label": "ReSpeaker XVF3800",
         "description": "ReSpeaker XVF3800 prebuilt firmware",
+        "flash_size": "8MB",
     },
 )
 FIRMWARE_PREBUILT_LATEST_URL = (
@@ -684,6 +689,30 @@ def _parse_float(value: Any) -> float | None:
         return None
 
 
+def _parse_int(value: Any) -> int | None:
+    if value in (None, ""):
+        return None
+    try:
+        return int(float(value))
+    except Exception:
+        return None
+
+
+def _parse_probability_history(value: Any) -> List[int]:
+    if value in (None, ""):
+        return []
+    if isinstance(value, list):
+        raw_values = value
+    else:
+        raw_values = str(value).split(",")
+    history: List[int] = []
+    for raw_value in raw_values:
+        parsed = _parse_int(raw_value)
+        if parsed is not None:
+            history.append(parsed)
+    return history
+
+
 def _audio_sidecar_path(audio_path: Path) -> Path:
     return audio_path.with_suffix(".json")
 
@@ -1001,6 +1030,15 @@ def _captured_item_from_path(audio_path: Path) -> Dict[str, Any]:
         "blocked_by_vad": bool(meta.get("blocked_by_vad")),
         "max_probability": meta.get("max_probability"),
         "average_probability": meta.get("average_probability"),
+        "probability_cutoff": meta.get("probability_cutoff"),
+        "peak_probability_cutoff": meta.get("peak_probability_cutoff"),
+        "active_window_count": meta.get("active_window_count"),
+        "min_active_windows": meta.get("min_active_windows"),
+        "rise_score": meta.get("rise_score"),
+        "vad_max_probability": meta.get("vad_max_probability"),
+        "vad_average_probability": meta.get("vad_average_probability"),
+        "detection_profile": meta.get("detection_profile") or "",
+        "probability_history": meta.get("probability_history") or [],
         "detected_format": meta.get("detected_format") or {},
         "final_format": final_format,
         "postprocess": meta.get("postprocess") or {},
@@ -1453,6 +1491,15 @@ def _firmware_template_spec(template_key: str) -> Dict[str, Any]:
     raise ValueError("Unknown firmware template.")
 
 
+def _firmware_template_flash_size(template_key: Any) -> str:
+    try:
+        spec = _firmware_template_spec(_text(template_key))
+    except Exception:
+        spec = {}
+    flash_size = _text(spec.get("flash_size")).upper()
+    return flash_size if flash_size in {"4MB", "8MB", "16MB", "32MB"} else "8MB"
+
+
 def _firmware_raw_url(path: str) -> str:
     clean = str(path or "").strip().lstrip("/")
     return f"https://raw.githubusercontent.com/{FIRMWARE_GITHUB_OWNER}/{FIRMWARE_GITHUB_REPO}/{FIRMWARE_GITHUB_REF}/{clean}"
@@ -1713,7 +1760,7 @@ def _create_browser_flash_artifact(template_key: Any, prebuilt: Dict[str, Any],
         "source_binary": str(binary_path),
         "binary_size": int(target_binary_path.stat().st_size),
         "erase_all": True,
-        "flash_size": "4MB",
+        "flash_size": _firmware_template_flash_size(template_key),
         "flash_mode": "dio",
         "flash_freq": "40m",
     }
@@ -2967,6 +3014,15 @@ async def upload_captured_audio(
         "average_probability": _parse_float(
             extra_meta.get("average_probability") if average_probability is None else average_probability
         ),
+        "probability_cutoff": _parse_int(extra_meta.get("probability_cutoff")),
+        "peak_probability_cutoff": _parse_int(extra_meta.get("peak_probability_cutoff")),
+        "active_window_count": _parse_int(extra_meta.get("active_window_count")),
+        "min_active_windows": _parse_int(extra_meta.get("min_active_windows")),
+        "rise_score": _parse_int(extra_meta.get("rise_score")),
+        "vad_max_probability": _parse_int(extra_meta.get("vad_max_probability")),
+        "vad_average_probability": _parse_int(extra_meta.get("vad_average_probability")),
+        "detection_profile": str(extra_meta.get("detection_profile") or "").strip(),
+        "probability_history": _parse_probability_history(extra_meta.get("probability_history")),
         "notes": notes or extra_meta.get("notes") or "",
         "converted": result["converted"],
         "detected_format": result["detected_format"],
@@ -2996,6 +3052,15 @@ async def upload_captured_audio_raw(
     x_blocked_by_vad: str | None = Header(default=None),
     x_max_probability: str | None = Header(default=None),
     x_average_probability: str | None = Header(default=None),
+    x_probability_cutoff: str | None = Header(default=None),
+    x_peak_probability_cutoff: str | None = Header(default=None),
+    x_active_windows: str | None = Header(default=None),
+    x_min_active_windows: str | None = Header(default=None),
+    x_rise_score: str | None = Header(default=None),
+    x_vad_max_probability: str | None = Header(default=None),
+    x_vad_average_probability: str | None = Header(default=None),
+    x_detection_profile: str | None = Header(default=None),
+    x_probability_history: str | None = Header(default=None),
     x_notes: str | None = Header(default=None),
 ):
     raw_data = await request.body()
@@ -3031,6 +3096,15 @@ async def upload_captured_audio_raw(
         "blocked_by_vad": _parse_bool(x_blocked_by_vad),
         "max_probability": _parse_float(x_max_probability),
         "average_probability": _parse_float(x_average_probability),
+        "probability_cutoff": _parse_int(x_probability_cutoff),
+        "peak_probability_cutoff": _parse_int(x_peak_probability_cutoff),
+        "active_window_count": _parse_int(x_active_windows),
+        "min_active_windows": _parse_int(x_min_active_windows),
+        "rise_score": _parse_int(x_rise_score),
+        "vad_max_probability": _parse_int(x_vad_max_probability),
+        "vad_average_probability": _parse_int(x_vad_average_probability),
+        "detection_profile": (x_detection_profile or "").strip(),
+        "probability_history": _parse_probability_history(x_probability_history),
         "notes": x_notes or "",
         "converted": result["converted"],
         "detected_format": result["detected_format"],