diff --git a/socket/modbus.py b/socket/modbus.py
index 91e366e..8cb3c28 100644
--- a/socket/modbus.py
+++ b/socket/modbus.py
@@ -25,7 +25,7 @@ PPT 8페이지(일괄 읽기) 최신 매핑(사용자 제공):
 - 값의 합리성 체크(클램프)를 통해 가장 그럴듯한 해석을 최종 선택한다.
 """
 
-import os, asyncio, struct, base64, re, socket
+import os, asyncio, struct, base64, re, socket, pymysql
 from datetime import datetime, timezone
 from typing import Dict, List, Any, Optional, Tuple
 
@@ -48,6 +48,10 @@ TS_BUFFERS: Dict[str, deque] = {}
 TS_MAX = int(os.getenv("TS_MAX", "500"))          # keep up to 500 samples per device
 TS_PERIOD_SEC = float(os.getenv("TS_PERIOD_SEC", "2.0"))  # poll every 2 seconds
 
+# db연결
+conn = pymysql.connect(host='49.238.167.71', user='helmet', password='helmet2824', db='helmet', charset='utf8')
+cur = conn.cursor()
+
 async def _poll_devices_task():
     """Periodically read bulk8 (1..30) from all connected devices and store last TS_MAX samples."""
     while True:
@@ -513,6 +517,16 @@ def ts_get(req: TSSamplesReq):
         return {"ok": True, "target": key, "count": 0, "samples": []}
     n = min(len(dq), req.limit)
     samples = list(dq)[-n:]
+
+    # db 저장
+    now = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+    cur.execute('insert into sensor_data values (null, "{}", "{}", {}, {}, {}, {})'.format(samples[0]['key'], now, samples[0]['lock'], samples[0]['helmet'], samples[0]['uv_state'], samples[0]['fan_state']))
+    conn.commit()
+    cur.execute('insert into env_data values (null, "{}", "{}", {}, {}, {}, {})'.format(samples[0]['key'], now, 1, 1, samples[0]['temp'], samples[0]['humi']))
+    conn.commit()
+    cur.execute('insert into battery values (null, "{}", "{}", {}, {}, {}, {})'.format(samples[0]['key'], now, samples[0]['batt_pct'], samples[0]['pv_volt'], samples[0]['pv_curr'], samples[0]['chg_done']))
+    conn.commit()
+
     return {"ok": True, "target": key, "count": n, "samples": samples}
 
 # ----- UI -----
diff --git a/socket/requirements.txt b/socket/requirements.txt
index 19453a1..5da27c4 100644
--- a/socket/requirements.txt
+++ b/socket/requirements.txt
@@ -1,4 +1,5 @@
 fastapi
+pymysql
 uvicorn[standard]
 python-multipart
 pymodbus>=3.5,<4
\ No newline at end of file