diff --git a/drivers/sim/sms-reader.js b/drivers/sim/sms-reader.js
new file mode 100644
index 0000000..70b7eb5
--- /dev/null
+++ b/drivers/sim/sms-reader.js
@@ -0,0 +1,322 @@
+'use strict';
+
+/**
+ * SIM 卡短信读取器
+ * - 扫描 /dev/serial/by-path 中以 :1.3-port0 结尾的 Quectel AT 串口
+ * - 每 15 秒读取一次，过滤 5 分钟内的短信
+ * - 去重后追加写入 ~/sms-messages.txt
+ */
+
+const fs      = require('fs');
+const path    = require('path');
+const os      = require('os');
+const crypto  = require('crypto');
+const { execSync } = require('child_process');
+
+const BY_PATH_DIR     = '/dev/serial/by-path';
+const TARGET_SUFFIX   = ':1.3-port0';
+const OUT_FILE        = path.join(os.homedir(), 'sms-messages.txt');
+const STATE_FILE      = path.join(os.homedir(), '.sms-seen.json');
+const BAUD            = 9600;
+const POLL_MS         = 15_000;
+const WINDOW_MINUTES  = 5;
+const SEEN_LIMIT      = 2000;
+
+// ── 工具 ─────────────────────────────────────────────────────────────────────
+
+const sleep = ms => new Promise(r => setTimeout(r, ms));
+
+// ── 串口操作 ──────────────────────────────────────────────────────────────────
+
+function setupPort(dev) {
+  execSync(
+    `stty -F "${dev}" ${BAUD} cs8 -cstopb -parenb cread clocal -crtscts raw ` +
+    `-echo -echoe -echok -echonl min 0 time 5`,
+    { stdio: 'ignore' }
+  );
+}
+
+/** 读取串口原始数据，直到 OK/ERROR 或超时 */
+async function readRaw(fd, timeoutMs = 2000, stopOnOk = true) {
+  const buf      = Buffer.alloc(4096);
+  const deadline = Date.now() + timeoutMs;
+  let   text     = '';
+
+  while (Date.now() < deadline) {
+    let n = 0;
+    try {
+      n = fs.readSync(fd, buf, 0, buf.length, null);
+    } catch (e) {
+      if (e.code !== 'EAGAIN' && e.code !== 'EWOULDBLOCK') throw e;
+    }
+
+    if (n > 0) {
+      text += buf.slice(0, n).toString('utf8');
+      if (stopOnOk && (/\nOK|\rOK|ERROR/.test(text))) {
+        // 排尽剩余缓冲
+        await sleep(120);
+        try {
+          while (true) {
+            const n2 = fs.readSync(fd, buf, 0, buf.length, null);
+            if (n2 <= 0) break;
+            text += buf.slice(0, n2).toString('utf8');
+          }
+        } catch (_) {}
+        break;
+      }
+    } else {
+      await sleep(50);
+    }
+  }
+  return text;
+}
+
+/** 发送 AT 命令，返回清理后的响应行数组 */
+async function atCmd(fd, command, waitMs = 2000) {
+  // 清空输入缓冲
+  try { while (fs.readSync(fd, Buffer.alloc(256), 0, 256, null) > 0) {} } catch (_) {}
+  fs.writeSync(fd, Buffer.from(command + '\r'));
+  const raw = await readRaw(fd, waitMs, true);
+  return cleanLines(raw);
+}
+
+function cleanLines(raw) {
+  return raw
+    .replace(/\r/g, '\n')
+    .split('\n')
+    .map(l => l.trim())
+    .filter(l => {
+      if (!l) return false;
+      if (l === 'OK' || l === 'ERROR') return false;
+      if (l.startsWith('AT')) return false;
+      const printable = [...l].filter(c => c >= ' ').length;
+      return printable / Math.max(1, l.length) >= 0.85;
+    });
+}
+
+// ── 端口发现 ──────────────────────────────────────────────────────────────────
+
+function discoverPorts() {
+  if (!fs.existsSync(BY_PATH_DIR)) return [];
+  return fs.readdirSync(BY_PATH_DIR)
+    .filter(n => n.endsWith(TARGET_SUFFIX))
+    .sort()
+    .map(n => {
+      const link = path.join(BY_PATH_DIR, n);
+      try {
+        const real = fs.realpathSync(link);
+        return fs.existsSync(real) ? { link, real } : null;
+      } catch (_) { return null; }
+    })
+    .filter(Boolean);
+}
+
+// ── SMS 解析 ──────────────────────────────────────────────────────────────────
+
+/** 尝试将纯 UCS2 hex 解码为中文 */
+function maybeDecodeUcs2(text) {
+  const s = (text || '').replace(/\s+/g, '');
+  if (!s || s.length % 4 !== 0) return '';
+  if (/^\d+$/.test(s)) return '';           // 纯数字不解码（验证码原文）
+  if (!/^[0-9A-Fa-f]+$/.test(s)) return '';
+  try {
+    const decoded = Buffer.from(s, 'hex').toString('utf16le');
+    // utf16le 是 little-endian，Quectel 发的是 big-endian，需交换字节
+    const beDecoded = Buffer.from(s, 'hex').swap16().toString('utf16le');
+    const printable = c => c >= ' ';
+    const score = s => [...s].filter(printable).length / Math.max(1, s.length);
+    const best = score(beDecoded) >= score(decoded) ? beDecoded : decoded;
+    return score(best) >= 0.85 ? best.trim() : '';
+  } catch (_) { return ''; }
+}
+
+/** 从文本提取 4-8 位验证码 */
+function extractOtp(text) {
+  const m = (text || '').match(/(?<!\d)(\d{4,8})(?!\d)/);
+  return m ? m[1] : '';
+}
+
+/** 解析 +CMGL 响应行为消息对象数组 */
+function parseSms(lines) {
+  const messages = [];
+  let current = null;
+  for (const line of lines) {
+    if (line.startsWith('+CMGL:') || line.startsWith('+CMGR:')) {
+      const parts = line.split(',').map(p => p.trim().replace(/^"|"$/g, ''));
+      const sender = line.startsWith('+CMGL:')
+        ? (parts[2] || 'UNKNOWN')
+        : (parts[1] || 'UNKNOWN');
+      // 时间戳在 +CMGL: idx,stat,sender,,"yy/MM/dd,HH:mm:ss+tz"
+      const tsRaw = parts[4] || '';
+      current = { sender, tsRaw, timestamp: parseTimestamp(tsRaw), content: '', decoded: '' };
+      messages.push(current);
+    } else if (current && !line.startsWith('+')) {
+      const raw = (current.content + ' ' + line).trim();
+      current.content = raw;
+      current.decoded = maybeDecodeUcs2(raw);
+      current = null;
+    }
+  }
+  return messages;
+}
+
+/** 解析 Quectel 时间戳 "26/04/30,12:34:56+32"（+tz 单位 1/4 小时） */
+function parseTimestamp(raw) {
+  if (!raw) return new Date();
+  const m = raw.match(/(\d{2})\/(\d{2})\/(\d{2}),(\d{2}):(\d{2}):(\d{2})([+-]\d+)?/);
+  if (!m) return new Date();
+  const [, yy, mo, dd, hh, mm, ss, tz] = m;
+  const tzMin = tz ? parseInt(tz) * 15 : 0;
+  const iso = `20${yy}-${mo}-${dd}T${hh}:${mm}:${ss}${tzOffsetStr(tzMin)}`;
+  const d = new Date(iso);
+  return isNaN(d) ? new Date() : d;
+}
+
+function tzOffsetStr(totalMin) {
+  const sign = totalMin >= 0 ? '+' : '-';
+  const abs  = Math.abs(totalMin);
+  const h    = String(Math.floor(abs / 60)).padStart(2, '0');
+  const m    = String(abs % 60).padStart(2, '0');
+  return `${sign}${h}:${m}`;
+}
+
+/** 过滤 N 分钟内的短信 */
+function recentOnly(messages, minutes = WINDOW_MINUTES) {
+  const cutoff = Date.now() - minutes * 60 * 1000;
+  return messages.filter(m => m.timestamp >= cutoff);
+}
+
+// ── 去重 ──────────────────────────────────────────────────────────────────────
+
+function fingerprint(imsi, msg) {
+  const key = [
+    imsi || 'UNKNOWN',
+    msg.sender || 'UNKNOWN',
+    msg.decoded || msg.content || '',
+    msg.timestamp.toISOString(),
+  ].join('|');
+  return crypto.createHash('sha1').update(key).digest('hex');
+}
+
+function loadSeen() {
+  try {
+    const data = JSON.parse(fs.readFileSync(STATE_FILE, 'utf8'));
+    return Array.isArray(data) ? data : [];
+  } catch (_) { return []; }
+}
+
+function saveSeen(seen) {
+  fs.writeFileSync(STATE_FILE, JSON.stringify(seen.slice(-SEEN_LIMIT), null, 2), 'utf8');
+}
+
+function filterNew(results, seen) {
+  const seenSet = new Set(seen);
+  const newSeen = [...seen];
+  const filtered = [];
+  for (const item of results) {
+    const msgs = [];
+    for (const msg of item.messages) {
+      const fp = fingerprint(item.imsi, msg);
+      if (seenSet.has(fp)) continue;
+      seenSet.add(fp);
+      newSeen.push(fp);
+      msgs.push(msg);
+    }
+    filtered.push({ ...item, messages: msgs });
+  }
+  return { filtered, newSeen: newSeen.slice(-SEEN_LIMIT) };
+}
+
+// ── 读取一个端口 ──────────────────────────────────────────────────────────────
+
+async function readPort({ link, real }) {
+  let fd;
+  try {
+    setupPort(real);
+    fd = fs.openSync(real, fs.constants.O_RDWR | fs.constants.O_NOCTTY | fs.constants.O_NONBLOCK);
+
+    // 排空缓冲
+    await readRaw(fd, 400, false);
+
+    // 获取 IMSI
+    const cimiLines = await atCmd(fd, 'AT+CIMI');
+    const imsiMatch = cimiLines.join('\n').match(/\b(\d{15})\b/);
+    const imsi = imsiMatch ? imsiMatch[1] : 'UNKNOWN';
+
+    // 切换文本模式
+    await atCmd(fd, 'AT+CMGF=1');
+
+    // 读取所有短信
+    const smsLines = await atCmd(fd, 'AT+CMGL="ALL"', 4000);
+    const messages = recentOnly(parseSms(smsLines));
+
+    return { link, device: real, imsi, messages };
+  } catch (e) {
+    return { link, device: real, imsi: 'UNKNOWN', messages: [], error: e.message };
+  } finally {
+    if (fd !== undefined) try { fs.closeSync(fd); } catch (_) {}
+  }
+}
+
+// ── 输出渲染 ──────────────────────────────────────────────────────────────────
+
+function render(results) {
+  const now = new Date().toLocaleString('zh-CN', { hour12: false,
+    year: 'numeric', month: '2-digit', day: '2-digit',
+    hour: '2-digit', minute: '2-digit', second: '2-digit',
+    timeZoneName: 'short' });
+  const lines = [`=== ${now} ===`];
+  let anySms = false;
+
+  for (const item of results) {
+    const errStr = item.error ? `  ERROR: ${item.error}` : '';
+    lines.push(`Port: ${item.device}  IMSI: ${item.imsi}  Messages: ${item.messages.length}${errStr}`);
+    for (const msg of item.messages) {
+      anySms = true;
+      lines.push(`Time:    ${msg.timestamp.toLocaleString('zh-CN', { hour12: false })}`);
+      lines.push(`IMSI:    ${item.imsi}`);
+      lines.push(`From:    ${msg.sender}`);
+      lines.push(`Content: ${msg.decoded || msg.content}`);
+      const otp = extractOtp(msg.decoded || msg.content);
+      if (otp) lines.push(`Code:    ${otp}`);
+      lines.push('');
+    }
+  }
+  if (!anySms) lines.push(`No new SMS in last ${WINDOW_MINUTES} minutes.`);
+  return lines.join('\n').trimEnd() + '\n';
+}
+
+// ── 主循环 ────────────────────────────────────────────────────────────────────
+
+async function poll() {
+  const ports   = discoverPorts();
+  const results = await Promise.all(ports.map(readPort));
+
+  for (const item of results) {
+    for (const msg of item.messages) {
+      msg.otp = extractOtp(msg.decoded || msg.content);
+    }
+  }
+
+  const seen = loadSeen();
+  const { filtered, newSeen } = filterNew(results, seen);
+  const text = render(filtered);
+
+  fs.appendFileSync(OUT_FILE, text, 'utf8');
+  saveSeen(newSeen);
+  process.stdout.write(text);
+}
+
+async function main() {
+  console.log(`SIM SMS reader started. Poll every ${POLL_MS / 1000}s → ${OUT_FILE}`);
+  while (true) {
+    try {
+      await poll();
+    } catch (e) {
+      console.error('poll error:', e.message);
+    }
+    await sleep(POLL_MS);
+  }
+}
+
+main();