diff --git a/config.py b/config.py
index 90f74494c0c70744633c63180351c8f01e4ddadc..49d5883a4bd1dbfa660aa38acba1c7113c4321cc 100644
--- a/config.py
+++ b/config.py
@@ -2,7 +2,7 @@ from paho.mqtt.client import MQTTv31
 
 # OhmPi configuration
 OHMPI_CONFIG = {
-    'id': '0001',  # Unique identifier of the OhmPi board (string)
+    'id': '0000',  # Unique identifier of the OhmPi board (string)
     'R_shunt': 2,  # Shunt resistance in Ohms
     'Imax': 4800/50/2,  # Maximum current
     'coef_p2': 2.50,  # slope for current conversion for ADS.P2, measurement in V/V
@@ -50,7 +50,7 @@ SOH_LOGGING_CONFIG = {
 MQTT_LOGGING_CONFIG = {
     'hostname': 'ohmpy.umons.ac.be',
     'port': 1883,
-    'qos': 0,
+    'qos': 1,
     'retain': False,
     'keepalive': 60,
     'will': None,
@@ -58,9 +58,9 @@ MQTT_LOGGING_CONFIG = {
     'tls': None,
     'protocol': MQTTv31,
     'transport': 'tcp',
-    'client_id': f'ohmpi_sn_{OHMPI_CONFIG["id"]}',
-    'control_topic': f'ctrl_ohmpi_sn_{OHMPI_CONFIG["id"]}',
-    'exec_topic': f'exec_ohmpi_sn_{OHMPI_CONFIG["id"]}',
-    'data_topic': f'data_ohmpi_sn_{OHMPI_CONFIG["id"]}',
-    'soh_topic': f'soh_ohmpi_sn_{OHMPI_CONFIG["id"]}'
+    'client_id': f'{OHMPI_CONFIG["id"]}',
+    'ctrl_topic': f'ohmpi_{OHMPI_CONFIG["id"]}/ctrl',
+    'exec_topic': f'ohmpi_{OHMPI_CONFIG["id"]}/exec',
+    'data_topic': f'ohmpi_{OHMPI_CONFIG["id"]}/data',
+    'soh_topic': f'ohmpi_{OHMPI_CONFIG["id"]}/soh'
 }
diff --git a/ohmpi.py b/ohmpi.py
index 44450d3409f0db34c2aa5581d39a483bae293830..a255a7e1ee68d8608874e12c991fc4639cc6f14f 100644
--- a/ohmpi.py
+++ b/ohmpi.py
@@ -18,8 +18,6 @@ from termcolor import colored
 import threading
 from logging_setup import setup_loggers
 
-# from mqtt_setup import mqtt_client_setup
-
 # finish import (done only when class is instantiated as some libs are only available on arm64 platform)
 try:
     import board  # noqa
@@ -161,7 +159,7 @@ class OhmPi(object):
         
         Parameters
         ----------
-        quads : 1D or 2D array
+        quads : numpy.ndarray
             List of quadrupoles of shape nquad x 4 or 1D vector of shape nquad.
         
         Returns
@@ -219,16 +217,19 @@ class OhmPi(object):
 
         Returns
         -------
-        output : numpy.array
+        sequence : numpy.array
             Array of shape (number quadrupoles * 4).
         """
-        output = np.loadtxt(filename, delimiter=" ", dtype=int)  # load quadrupole file
+        sequence = np.loadtxt(filename, delimiter=" ", dtype=int)  # load quadrupole file
+
+        if sequence is not None:
+            self.exec_logger.debug('Sequence of {:d} quadrupoles read.'.format(sequence.shape[0]))
 
         # locate lines where the electrode index exceeds the maximum number of electrodes
-        test_index_elec = np.array(np.where(output > self.max_elec))
+        test_index_elec = np.array(np.where(sequence > self.max_elec))
 
         # locate lines where electrode A == electrode B
-        test_same_elec = self.find_identical_in_line(output)
+        test_same_elec = self.find_identical_in_line(sequence)
 
         # if statement with exit cases (TODO rajouter un else if pour le deuxième cas du ticket #2)
         if test_index_elec.size != 0:
@@ -236,17 +237,17 @@ class OhmPi(object):
                 self.exec_logger.error(f'An electrode index at line {str(test_index_elec[0, i] + 1)} '
                                        f'exceeds the maximum number of electrodes')
             # sys.exit(1)
-            output = None
+            sequence = None
         elif len(test_same_elec) != 0:
             for i in range(len(test_same_elec)):
                 self.exec_logger.error(f'An electrode index A == B detected at line {str(test_same_elec[i] + 1)}')
             # sys.exit(1)
-            output = None
+            sequence = None
 
-        if output is not None:
-            self.exec_logger.debug('Sequence of {:d} quadrupoles read.'.format(output.shape[0]))
+        if sequence is not None:
+            self.exec_logger.info('Sequence of {:d} quadrupoles read.'.format(sequence.shape[0]))
 
-        self.sequence = output
+        self.sequence = sequence
 
     def switch_mux(self, electrode_nr, state, role):
         """Select the right channel for the multiplexer cascade for a given electrode.
@@ -661,9 +662,7 @@ class OhmPi(object):
         self.exec_logger.debug(f'Status: {self.status}')
 
 
-# mqtt_client, measurement_topic = mqtt_client_setup()
-
-VERSION = '2.0.2'
+VERSION = '2.0.3'
 
 print(colored(r' ________________________________' + '\n' +
               r'|  _  | | | ||  \/  || ___ \_   _|' + '\n' +
diff --git a/webserver.py b/webserver.py
index f2f85f596ab86e90f2676ec87167a7a4eaedef02..244ee398acade6d2806775eaf9e412130cd8e68d 100644
--- a/webserver.py
+++ b/webserver.py
@@ -23,7 +23,7 @@ class MyServer(SimpleHTTPRequestHandler):
     # the do_GET() method (if we use the BaseHTTPRequestHandler, we would need to)
    
     # def do_GET(self):
-    #     # normal get for wepages (not so secure!)
+    #     # normal get for webpages (not so secure!)
     #     print(self.command)
     #     print(self.headers)
     #     print(self.request)