diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index 7a7a789..b55af65 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -1,7 +1,12 @@
 
 # Specify the .proto file
 set(PROTO_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../proto)
-set(PROTO_FILE ${PROTO_SRC_DIR}/firmware.proto)
+set(PROTO_FILE 
+${PROTO_SRC_DIR}/firmware.proto
+${PROTO_SRC_DIR}/light.proto
+${PROTO_SRC_DIR}/usb.proto
+${PROTO_SRC_DIR}/cls_device.proto
+)
 
 # Specify where you want to generate the python code
 set(PYTHON_OUT_DIR ${CMAKE_CURRENT_SOURCE_DIR})
diff --git a/tools/find_devices.py b/tools/find_devices.py
index 9a56212..521e695 100644
--- a/tools/find_devices.py
+++ b/tools/find_devices.py
@@ -3,37 +3,12 @@ import struct
 from google.protobuf.message import DecodeError
 from serial.tools import list_ports
 
-from firmware_pb2 import RequestDeviceList, Device, ResponseDeviceList, UsbPackageType
-
-def make_header(typeid: UsbPackageType, length: int) -> bytearray: 
-    struct_format = '<HHB'  # '<' for little-endian, 'H' for uint16_t, 'B' for uint8_t
-    # Calculate the check byte as the sum of length and type
-    typeidint = int(typeid) 
-    check = (length & 0xFF) + ((length >> 8) & 0xFF) + (typeidint & 0xFF) + ((typeidint >> 8) & 0xFF)
-    packed_data = struct.pack(struct_format, length, typeid, check)
-    return packed_data
-
-def send_package(typeid : UsbPackageType, data: bytearray, serial: serial.Serial):
-    head = make_header(typeid, len(data))
-    package = head + data
-    serial.write(package)
+from cls_device_pb2 import RequestDeviceList, Device, ResponseDeviceList
+from usb_pb2 import UsbPackageType
+from vcp_driver import *
 
 if __name__ == "__main__":
-    stm_port = None
-    for port in list_ports.comports():
-        print(port)
-        if "STM32 Virtual ComPort" in port.description:
-            stm_port = port.device
-            break
-
-    if stm_port is None:
-        print("STM32 Virtual ComPort not found")
-        exit(-1)
-    else:
-        # Open the serial port
-        ser = serial.Serial(stm_port,baudrate=5000000)
-
-
+        ser = setup_connection()
         # Create a RequestDeviceList message
         request = RequestDeviceList()
         request.msg = 1  # or whatever value you want to set
diff --git a/tools/light_test.py b/tools/light_test.py
new file mode 100644
index 0000000..bbd2531
--- /dev/null
+++ b/tools/light_test.py
@@ -0,0 +1,35 @@
+import serial
+import struct
+from google.protobuf.message import DecodeError
+from serial.tools import list_ports
+
+from light_pb2 import LightGlobalBrightness, LightTheme, LightGlobalTheme, LightThemeSettings
+from usb_pb2 import UsbPackageType
+from vcp_driver import *
+
+if __name__ == "__main__":
+        ser = setup_connection()
+        # Create a message
+        request = LightGlobalBrightness()
+        request.brightness = 128
+        # Serialize the request to a bytearray
+        request_data = request.SerializeToString()
+
+        # Send the request
+        send_package(UsbPackageType.LIGHT_GLOBAL_BRIGHT, request_data, ser)
+
+
+        request = LightGlobalTheme()
+        request.theme = 1
+        request_data = request.SerializeToString()
+        send_package(UsbPackageType.LIGHT_GLOBAL_THEME, request_data, ser)
+
+
+        request = LightThemeSettings()
+        request.deviceId = 1
+        request.theme = 1
+        request.rgb = 0x00f000f0
+        request.brightness = 255
+        request.animation = 2
+        request_data = request.SerializeToString()
+        send_package(UsbPackageType.LIGHT_SETTING_THEME, request_data, ser)
diff --git a/tools/send_fw.py b/tools/send_fw.py
index ecb1366..3f2e2f4 100644
--- a/tools/send_fw.py
+++ b/tools/send_fw.py
@@ -7,7 +7,8 @@ from google.protobuf.message import DecodeError
 from serial.tools import list_ports
 from crccheck.crc import Crc
 
-from firmware_pb2 import FirmwareStart, FirmwareFileCheck , FirmwarePackage, FirmwarePackageAck, FirmwareDone, UsbPackageType
+from firmware_pb2 import FirmwareStart, FirmwareFileCheck , FirmwarePackage, FirmwarePackageAck, FirmwareDone
+from usb_pb2 import UsbPackageType
 
 
 Crc32 = Crc(32,0x04C11DB7,0xffffffff) 
diff --git a/tools/vcp_driver.py b/tools/vcp_driver.py
new file mode 100644
index 0000000..a471842
--- /dev/null
+++ b/tools/vcp_driver.py
@@ -0,0 +1,37 @@
+
+import serial
+import struct
+from usb_pb2 import UsbPackageType
+from serial.tools import list_ports
+
+
+def make_header(typeid: UsbPackageType, length: int) -> bytearray: 
+    struct_format = '<HHB'  # '<' for little-endian, 'H' for uint16_t, 'B' for uint8_t
+    # Calculate the check byte as the sum of length and type
+    typeidint = int(typeid) 
+    check = (length & 0xFF) + ((length >> 8) & 0xFF) + (typeidint & 0xFF) + ((typeidint >> 8) & 0xFF)
+    packed_data = struct.pack(struct_format, length, typeid, check)
+    return packed_data
+
+def send_package(typeid : UsbPackageType, data: bytearray, serial: serial.Serial):
+    head = make_header(typeid, len(data))
+    package = head + data
+    serial.write(package)
+
+
+def setup_connection() -> serial.Serial: 
+    stm_port = None
+    for port in list_ports.comports():
+        print(port)
+        if "STM32 Virtual ComPort" in port.description:
+            stm_port = port.device
+            break
+
+    if stm_port is None:
+        print("STM32 Virtual ComPort not found")
+        exit(-1)
+    else:
+        # Open the serial port
+        ser = serial.Serial(stm_port,baudrate=5000000)
+        return ser
+    
\ No newline at end of file