improve pdp reconnect

loop/SARA_send_data_v2.py

@@ -515,6 +515,15 @@ def reset_PSD_CSD_connection():
     """
     print("⚠️Reseting PDP connection ")
     pdp_reset_success = True
+
+    #check if PDP context is already active
+    print('➡️ Check if PDP context is already active')
+    command = f'AT+CGACT?\r'
+    ser_sara.write(command.encode('utf-8'))
+    response_check = read_complete_response(ser_sara, wait_for_lines=["OK"])
+    print(response_check, end="")
+    time.sleep(1)
+
     # Activate PDP context 1
     print('➡️ Activate PDP context 1')
     command = f'AT+CGACT=1,1\r'