diff --git a/.gitignore b/.gitignore
index ed8ebf5..934eb76 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
-__pycache__
\ No newline at end of file
+__pycache__
+.vscode
+*.csv
\ No newline at end of file
diff --git a/Host/DataFile.py b/Host/DataFile.py
index 6288972..37b5464 100644
--- a/Host/DataFile.py
+++ b/Host/DataFile.py
@@ -3,19 +3,18 @@
 
 class DataFile:
     def __init__(self):
-        base_path = os.path.dirname(__file__)
-
         self.File = None
-        self.File = open( base_path + "/data/data.csv", "a+")
+        self.BasePath = os.path.dirname(__file__)
 
 
     def __del__(self):
-        if self.File != None:
-            self.File.flush()
-            self.File.close()
+        self.Close()
 
 
     def Write(self, data):
+        if self.File == None:
+            self.Open()
+
         if len(data) >= 6:
             for i in range(6):
                 if i > 0: self.File.write("\t")
@@ -24,4 +23,16 @@ def Write(self, data):
             self.File.write("\n")   
 
 
+    def Open(self):       
+        self.File = None
+        self.File = open(self.BasePath + "/data/data.csv", "a+")
+
+
+    def Close(self):
+        if self.File != None:
+            self.File.flush()
+            self.File.close()
+
+        self.File = None
+
     
\ No newline at end of file
diff --git a/Host/SensorChart.py b/Host/SensorChart.py
index 425c742..89c7d1a 100644
--- a/Host/SensorChart.py
+++ b/Host/SensorChart.py
@@ -1,3 +1,5 @@
+
+
 from OpenGL import GLUT, GLU, GL
 
 AxisColor = [[1, 0, 0], [0, 1, 0], [0, 0, 1]]
diff --git a/Host/SensorProcess.py b/Host/SensorProcess.py
index d6c2922..18288ff 100644
--- a/Host/SensorProcess.py
+++ b/Host/SensorProcess.py
@@ -1,3 +1,5 @@
+##
+
 from asyncio.windows_events import NULL
 import socket
 from PerformanceCounter import PerformanceCounter
@@ -41,6 +43,7 @@ def Recv(self):
 
         except socket.timeout:
             raw_data = []
+            self.DataFile.Close()
 
         except Exception as e:
             raw_data = []
diff --git a/Host/tinyml.ipynb b/Host/tinyml.ipynb
index 864eb1d..3b76ae1 100644
--- a/Host/tinyml.ipynb
+++ b/Host/tinyml.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 15,
+   "execution_count": 1,
    "id": "5b90960c",
    "metadata": {},
    "outputs": [],
@@ -256,8 +256,11 @@
   }
  ],
  "metadata": {
+  "interpreter": {
+   "hash": "065a7fd65857af9b0d7d7760ab62099efda22ea2fccd7cdd83105fb1a789eaf5"
+  },
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3.7.13 64-bit ('tinyml': conda)",
    "language": "python",
    "name": "python3"
   },
@@ -271,7 +274,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.11"
+   "version": "3.7.13"
   }
  },
  "nbformat": 4,
diff --git a/predict_gesture/predict_gesture.ino b/predict_gesture/predict_gesture.ino
index ecb58b9..b1405df 100644
--- a/predict_gesture/predict_gesture.ino
+++ b/predict_gesture/predict_gesture.ino
@@ -20,7 +20,7 @@
 
 const int BUTTOM_PIN = 4;
 
-const char* AP_SSID = "iCheng-choy";
+const char* AP_SSID = "iCheng";
 const char* AP_PWD = "nopassword";
 
 const char* GESTURES[] = {