diff --git a/IdentificationCartes.py b/IdentificationCartes.py
index 4457541..772410e 100644
--- a/IdentificationCartes.py
+++ b/IdentificationCartes.py
@@ -1,4 +1,6 @@
 import serial
+import serial.tools
+import serial.tools.list_ports
 from time import sleep
 from LectureReception import lire_message
 
@@ -15,26 +17,44 @@ def ping(ser: serial.Serial):
         message = ser.read(ser.in_waiting) # On vide le tampon
         if(message[0] == b'A'[0]):
             print("Carte Actionneur")
+            return "Actionneur"
         else:
-            print("Carte inconue : " + str(message))
+            print("Carte inconnue : " + str(message))
+            return None
         return
 
     # On teste les cartes au protocole "com_v2" (détection, propulsion)
     ser.write(b'\xFF\xFF\x05dD\x00\x01\x00')
     sleep(0.01)
     messages, tmp = lire_message(ser, b'')
-    if messages is not []:
+    print(messages)
+    if messages != []:
         if messages[0][0] == b'D'[0]:
             print("Carte de détection")
-            return
+            return "Detection"
         if messages[0][0] == b'P'[0]:
             print("Carte de propulsion")
-            return
+            return "Propulsion"
             
-
+def identifie_liaison_serie():
+    serial_actionneur = None
+    serial_detection = None
+    serial_propulsion = None
+    for comport in serial.tools.list_ports.comports():
+        print(comport.device)
+        ser = serial.Serial(comport.device , 115200)
+        nom_liaison = ping(ser)
+        if nom_liaison == "Actionneur":
+            serial_actionneur = ser
+        elif nom_liaison == "Detection":
+            serial_actionneur = ser
+        elif nom_liaison == "Propulsion":
+            serial_propulsion = ser
+    return [serial_propulsion, serial_detection, serial_actionneur]
 
 if __name__ == "__main__":
-    ser = serial.Serial('/dev/ttyACM0' , 115200)
-    while(1):
-        ping(ser)
-        sleep(1)
\ No newline at end of file
+    print(identifie_liaison_serie())
+    # ser = serial.Serial('/dev/ttyACM0' , 115200)
+    # while(1):
+    #     ping(ser)
+    #     sleep(1)
\ No newline at end of file