diff --git a/boards/default_src/micropython/origin/build/lib/mixiot.py b/boards/default_src/micropython/origin/build/lib/mixiot.py
index 5d2abcfd..36112150 100644
--- a/boards/default_src/micropython/origin/build/lib/mixiot.py
+++ b/boards/default_src/micropython/origin/build/lib/mixiot.py
@@ -1,5 +1,6 @@
 import time
 import usocket as socket
+import urequests as requests
 import ustruct as struct
 from machine import unique_id
 from ubinascii import hexlify
@@ -40,9 +41,8 @@ def image_base64(path="mixly.jpg"):
         return b'data:image/jpg;base64,' + b64encode(path)
 
 def ntp(url='mixio.mixly.cn'):
-    import urequests
     try:
-        results=eval(urequests.get('http://{}/time.php'.format(url)).text)
+        results=eval(requests.get('http://{}/time.php'.format(url)).text)
     except Exception as e:
         raise RuntimeError("API request failed or WiFi is not connected",e) 
     return results
@@ -341,3 +341,61 @@ class MQTTClient:
             self._star_time = time.ticks_ms()
             self.ping()
         return self.wait_msg()
+
+class TinyWebDB:
+    def __init__(self, url, username, password):
+        if url[-1] != '/':
+            url += '/'
+        self._api_url = url
+        self._username = username
+        self._password = password
+
+    def update(self, key, value):
+        key = str(key)
+        value = str(value)
+        result = self._request("update", "tag={}&value={}".format(key, value))
+        if result["status"] == "error":
+            raise RuntimeError(result["message"])
+    
+    def get(self, key):
+        key = str(key)
+        result = self._request("get", "tag={}".format(key))
+        if result["status"] == "error":
+            raise RuntimeError(result["message"])
+        return result["value"]
+
+    def count(self):
+        result = self._request("count")
+        if result["status"] == "error":
+            raise RuntimeError(result["message"])
+        return int(result["count"])
+
+    def search(self, count):
+        count = str(count)
+        result = self._request("search", "count={}".format(count))
+        if result["status"] == "error":
+            raise RuntimeError(result["message"])
+        return result["data"]
+
+    def delete(self, key):
+        key = str(key)
+        result = self._request("delete", "tag={}".format(key))
+        if result["status"] == "error":
+            raise RuntimeError(result["message"])
+
+    def _request(self, op, param=""):
+        data = "user={}&secret={}&action={}".format(self._username, self._password, op)
+        if param:
+            data += '&' + param
+        try:
+            headers = {
+                "Content-Type": "application/x-www-form-urlencoded"
+            }
+            response = requests.post(self._api_url, data=data, headers=headers)
+            result = {}
+            if response.status_code == 200:
+                result = response.json()
+            response.close()
+            return result
+        except Exception as e:
+            raise RuntimeError("API request failed or WiFi is not connected", e)
\ No newline at end of file