diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a411422..761b6ea 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
     - name: Checkout Code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Install SLOCCount
       run: sudo apt-get install sloccount
     - name: Check <1000 lines
@@ -32,7 +32,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
         with:
@@ -80,7 +80,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout Code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Install Blender
 
       run:  sudo snap install blender --classic
diff --git a/cnceye/config.py b/cnceye/config.py
index a3d859a..932b7ee 100644
--- a/cnceye/config.py
+++ b/cnceye/config.py
@@ -10,10 +10,10 @@
 
 
 MYSQL_CONFIG = dict(
-    host="raspberrypi.local",
+    host="192.168.122.76",
     port=3306,
-    user="yuchi",
-    password="raspberrypi",
+    user="root",
+    password="root",
 )
 
 if os.environ.get("CI"):
diff --git a/cnceye/edge/find.py b/cnceye/edge/find.py
index 0ce28dd..c0ff1e7 100644
--- a/cnceye/edge/find.py
+++ b/cnceye/edge/find.py
@@ -1,4 +1,9 @@
 import csv
+import sqlite3
+import mysql.connector
+from mysql.connector.errors import IntegrityError
+
+from cnceye.config import MYSQL_CONFIG
 
 
 def find_edge(filepath: str, minimal_diff: float = 5.0):
@@ -17,6 +22,23 @@ def find_edge(filepath: str, minimal_diff: float = 5.0):
         previous_distance = distance
 
 
+def find_edges_from_sqlite(database_path: str, minimal_diff: float = 5.0):
+    conn = sqlite3.connect(database_path)
+    cur = conn.cursor()
+    previous_distance = ""
+    edges = []
+    for row in cur.execute("SELECT * FROM coord"):
+        # x, y, z, distance
+        distance = row[4]
+        if check_if_edge_is_found(distance, previous_distance, minimal_diff):
+            edges.append(row)
+        previous_distance = distance
+
+    # remove the starting point
+    edges.pop(0)
+    return edges
+
+
 def check_if_edge_is_found(
     distance: str, prev_distance: str or float, minimal_diff: float = 5.0
 ):
@@ -56,3 +78,46 @@ def find_lines(filepath: str, edge_count: int, minimal_diff: float = 5.0):
         previous_row = row
 
     return lines
+
+
+def get_edge_data():
+    cnx = mysql.connector.connect(**MYSQL_CONFIG, database="coord")
+    cursor = cnx.cursor()
+    query = "SELECT id,side_id,x,y,z FROM edge"
+    cursor.execute(query)
+    edges = cursor.fetchall()
+    cursor.close()
+    cnx.close()
+    return edges
+
+
+def identify_close_edge(edges, measured_edges, distance_threshold=2.5):
+    update_list = []
+    for id, side_id, x, y, z in edges:
+        min_distance = 999999.0
+        data_with_min_distance = []
+        for measured_edge in measured_edges:
+            rx = measured_edge[1]
+            ry = measured_edge[2]
+            distance = ((x - rx) ** 2 + (y - ry) ** 2) ** 0.5
+            if distance < min_distance:
+                min_distance = distance
+                data_with_min_distance = (rx, ry, z, id)
+
+        if min_distance <= distance_threshold:
+            update_list.append(data_with_min_distance)
+
+    return update_list
+
+
+def add_measured_edge_coord(edge_list: list):
+    cnx = mysql.connector.connect(**MYSQL_CONFIG, database="coord")
+    cursor = cnx.cursor()
+    insert_query = "UPDATE edge SET rx = %s, ry = %s, rz = %s WHERE id = %s"
+    try:
+        cursor.executemany(insert_query, edge_list)
+    except IntegrityError:
+        print("Error: unable to import lines")
+    cnx.commit()
+    cursor.close()
+    cnx.close()
diff --git a/mysql/init.sql b/mysql/init.sql
index 4026e92..f9de8d6 100644
--- a/mysql/init.sql
+++ b/mysql/init.sql
@@ -38,4 +38,28 @@ CREATE TABLE IF NOT EXISTS `arc` (
   `rcy` FLOAT,
   `rcz` FLOAT,
   PRIMARY KEY (`id`)
+) ENGINE=InnoDB  DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=1;
+
+CREATE TABLE IF NOT EXISTS `edge` (
+  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+  `side_id` int(11) unsigned NOT NULL,
+  `x` FLOAT NOT NULL,
+  `y` FLOAT NOT NULL,
+  `z` FLOAT NOT NULL,
+  `rx` FLOAT,
+  `ry` FLOAT,
+  `rz` FLOAT,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB  DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=1;
+
+CREATE TABLE IF NOT EXISTS `side` (
+  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+  `x0` FLOAT NOT NULL,
+  `y0` FLOAT NOT NULL,
+  `z0` FLOAT NOT NULL,
+  `x1` FLOAT NOT NULL,
+  `y1` FLOAT NOT NULL,
+  `z1` FLOAT NOT NULL,
+  `pair_id` int(11) unsigned,
+  PRIMARY KEY (`id`)
 ) ENGINE=InnoDB  DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=1;
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index c968fad..cedc773 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "cnceye"
-version = "0.2.0"
+version = "0.3.0"
 description = ""
 authors = ["yuichiroaoki <45054071+yuichiroaoki@users.noreply.github.com>"]
 readme = "README.md"
diff --git a/scripts/simple_measurement.py b/scripts/simple_measurement.py
new file mode 100644
index 0000000..f5beb94
--- /dev/null
+++ b/scripts/simple_measurement.py
@@ -0,0 +1,99 @@
+"""
+Simulate the measurement of the 3D model by moving the sensor with G-code
+"""
+import bpy
+from mathutils import Vector
+import sqlite3
+import csv
+import sys
+
+# Get the active object (the 3D model)
+obj = bpy.data.objects["test-part"]
+
+ray_direction = Vector((0, 0, -1))
+
+# x, y, z, distance
+data = []
+
+# Ensure the object has a mesh
+assert obj.type == "MESH"
+
+
+def distance_to_analog_output(distance: float):
+    distance = distance * 1000 * 135  # m to mm, distance to analog output
+    return float(round(distance))
+
+
+def load_gcode(filepath: str):
+    with open(filepath, newline="") as csvfile:
+        reader = csv.reader(csvfile, delimiter=" ")
+        gcode = list(reader)
+    gcode.pop(0)
+    gcode.pop()
+    return gcode
+
+
+def move_start_point(_start_point, xyz, feedrate: float):
+    """
+    Move the start point to the given direction
+    _start_point: Vector (x, y, z) in m (relative to obj.location)
+    xyz: tuple (x, y, z) in mm
+    feedrate: float (mm/min)
+    sensor response time is 10ms
+    """
+    one_step_distance = feedrate / 1000 / 60 * 0.01  # m/step
+    destination = Vector(tuple([x / 1000 for x in xyz]))
+    total_distance_to_move = (destination - _start_point).length
+    loop_count = int(total_distance_to_move // one_step_distance)
+    move_vector = (destination - _start_point) / loop_count
+    for _ in range(loop_count):
+        distance = 0.14  # 140 mm
+        # Calculate the intersection point with the face
+        (hit, intersection_point, *_) = obj.ray_cast(_start_point, ray_direction)
+
+        if hit:
+            distance = start_point[2] - intersection_point[2]
+
+        # m to mm and round to 3 decimal places
+        xyz = [_start_point.x, _start_point.y, _start_point.z]
+        xyz = [round(x * 1000, 3) for x in xyz]
+
+        data.append([*xyz, distance_to_analog_output(distance)])
+        _start_point = _start_point + move_vector
+
+    return destination  # _start_point not may not become exactly the destination
+
+
+def row_to_xyz_feedrate(row):
+    x = float(row[1][1:])
+    y = float(row[2][1:])
+    z = float(row[3][1:])
+    feedrate = float(row[4][1:])
+    return (x, y, z, feedrate)
+
+
+# get filepath from arguments
+argv = sys.argv
+argv = argv[argv.index("--") + 1 :]
+assert len(argv) == 1
+gcode = load_gcode(argv[0])
+
+# Define the ray's starting point in object space
+first_row = gcode[0]
+(x, y, z, feedrate) = row_to_xyz_feedrate(first_row)
+start_point = Vector((x / 1000, y / 1000, 0.206))
+
+
+# start_point = Vector(initial_coord) - obj.location
+gcode = gcode[1:]
+
+for row in gcode:
+    (x, y, z, feedrate) = row_to_xyz_feedrate(row)
+    z = 206.0  # ignore z
+    start_point = move_start_point(start_point, (x, y, z), feedrate)
+
+conn = sqlite3.connect("listener.db")
+cur = conn.cursor()
+cur.executemany("INSERT INTO coord(x, y, z, distance) VALUES (?, ?, ?, ?)", data)
+conn.commit()
+conn.close()
diff --git a/tests/fixtures/db/listener.db b/tests/fixtures/db/listener.db
new file mode 100644
index 0000000..cf0205b
Binary files /dev/null and b/tests/fixtures/db/listener.db differ
diff --git a/tests/fixtures/gcode/edge.gcode b/tests/fixtures/gcode/edge.gcode
new file mode 100644
index 0000000..74c9107
--- /dev/null
+++ b/tests/fixtures/gcode/edge.gcode
@@ -0,0 +1,18 @@
+O0001
+G1 X-52.5 Y0.0 Z10.0 F600
+G1 X-47.5 Y0.0 Z10.0 F300
+G1 X-27.5 Y38.0 Z10.0 F600
+G1 X-22.5 Y38.0 Z10.0 F300
+G1 X0.0 Y-67.5 Z10.0 F600
+G1 X0.0 Y-62.5 Z10.0 F300
+G1 X0.0 Y20.5 Z10.0 F600
+G1 X0.0 Y25.5 Z10.0 F300
+G1 X0.0 Y50.5 Z10.0 F600
+G1 X0.0 Y55.5 Z10.0 F300
+G1 X0.0 Y62.5 Z10.0 F600
+G1 X0.0 Y67.5 Z10.0 F300
+G1 X22.5 Y38.0 Z10.0 F600
+G1 X27.5 Y38.0 Z10.0 F300
+G1 X47.5 Y0.0 Z10.0 F600
+G1 X52.5 Y0.0 Z10.0 F300
+M30
diff --git a/tests/test_find.py b/tests/test_find.py
index 051e76a..046fb28 100644
--- a/tests/test_find.py
+++ b/tests/test_find.py
@@ -7,6 +7,31 @@ def test_find_edge():
     print(edge_position)
 
 
+def test_find_edge_from_sqlite():
+    db_path = "tests/fixtures/db/listener.db"
+    measured_edges = find.find_edges_from_sqlite(db_path, 100.0)
+    print(measured_edges)
+    assert len(measured_edges) == 16
+
+
+def test_add_measured_edge_coord():
+    db_path = "tests/fixtures/db/listener.db"
+    measured_edges = find.find_edges_from_sqlite(db_path, 100.0)
+    edge_data = [
+        (1, 6, -50.0, 0.0, 10.0),
+        (2, 8, -25.0, 38.0, 10.0),
+        (3, 2, 0.0, -65.0, 10.0),
+        (4, 3, 0.0, 23.0, 10.0),
+        (5, 4, 0.0, 53.0, 10.0),
+        (6, 1, 0.0, 65.0, 10.0),
+        (7, 7, 25.0, 38.0, 10.0),
+        (8, 5, 50.0, 0.0, 10.0),
+    ]
+    # edge_data = find.get_edge_data()
+    update_list = find.identify_close_edge(edge_data, measured_edges)
+    find.add_measured_edge_coord(update_list)
+
+
 def test_check_if_edge_is_found():
     assert find.check_if_edge_is_found("", "") is False
     assert find.check_if_edge_is_found("", 100.0) is True