diff --git a/dev/start_mqtt_html.py b/dev/start_mqtt_html.py
index 4c88810bbadc1b2f9fcf73a9f079bf7d6345b38b..0e7dd6cf67694ad0de19c613bd235af4b055fbce 100644
--- a/dev/start_mqtt_html.py
+++ b/dev/start_mqtt_html.py
@@ -3,15 +3,25 @@
 # to message from the MQTT broker
 
 from ohmpi.utils import change_config
-change_config('../configs/config_mb_2023.py', verbose=False)
-#change_config('../configs/config_mb_2023_4_mux_2023.py', verbose=False)
+# change_config('../configs/config_mb_2023.py', verbose=False)
+change_config('../configs/config_mb_2023_4_mux_2023.py', verbose=False)
 #change_config('../configs/config_mb_2024_0_2__4_mux_2023_dps5005.py', verbose=False)
 
+# start html interface
+import subprocess
+subprocess.Popen(['python', '-m', 'http.server'])
+
+# start ohmpi listener
 from ohmpi.ohmpi import OhmPi
 from ohmpi.config import OHMPI_CONFIG
-ohmpi = OhmPi(settings=OHMPI_CONFIG['settings'])
-if ohmpi.controller is not None:
-    ohmpi.controller.loop_forever()
+k = OhmPi(settings=OHMPI_CONFIG['settings'])
+import os
+k.load_sequence(os.path.join(os.path.dirname(__file__), '../sequences/wenner16.txt'))
+k.reset_mux()
+#k.run_multiple_sequences(sequence_delay=20, nb_meas=3)
+
+if k.controller is not None:
+    k.controller.loop_forever()
 
 # restore default config
 change_config('../configs/config_default.py', verbose=False)
diff --git a/dev/test_mb_2023_4_mux_2023.py b/dev/test_mb_2023_4_mux_2023.py
index ca9c9c669028d077929a075488e37c40f928fb04..9dd195d0bfaa893fa836770444651d26431d5b0a 100644
--- a/dev/test_mb_2023_4_mux_2023.py
+++ b/dev/test_mb_2023_4_mux_2023.py
@@ -85,10 +85,10 @@ if within_ohmpi:
     print('Starting test with OhmPi.')
     k = OhmPi()
     # k.get_data()
-    k.load_sequence(os.path.join(os.path.dirname(__file__), '../sequences/wenner.txt'))
-    k.reset_mux()
+    # k.load_sequence(os.path.join(os.path.dirname(__file__), '../sequences/wenner16.txt'))
+    # k.reset_mux()
     # k.run_multiple_sequences(sequence_delay=20, nb_meas=3)
-    k.run_sequence(injection_duration=0.2)
+    # k.run_sequence(injection_duration=0.2)
     # k.rs_check(tx_volt=4)
     # k.test_mux(mux_id=None, activation_time=0.2)
     # k._hw.switch_mux([A, B, M, N], state='on')
@@ -103,11 +103,11 @@ if within_ohmpi:
     # k._hw.switch_mux([A, B, M, N], state='off')
     # print(f'OhmPiHardware Resistance: {k._hw.last_rho :.2f} ohm, dev. {k._hw.last_dev:.2f} %, rx bias: {k._hw.rx._bias:.2f} mV')
     # k._hw._plot_readings()
-    # A, B, M, N = (16, 13, 15, 14)
+    A, B, M, N = (17, 20, 18, 19)
     # A, B, M, N = (1, 4, 2, 3)
-    # d = k.run_measurement([A, B, M, N], injection_duration=0.5, nb_stack=2, duty_cycle=0.5)
-    # print(d)
-    # k._hw._plot_readings()
+    d = k.run_measurement([A, B, M, N], injection_duration=0.5, nb_stack=2, duty_cycle=0.5)
+    print(d)
+    k._hw._plot_readings()
     # print(f'OhmPiHardware: Resistance: {k._hw.last_resistance() :.2f} ohm, dev. {k._hw.last_dev():.2f} %, sp: {k._hw.sp:.2f} mV, rx bias: {k._hw.rx._bias:.2f} mV')
     # print(f'OhmPi: Resistance: {d["R [ohm]"] :.2f} ohm, dev. {d["R_std [%]"]:.2f} %, rx bias: {k._hw.rx._bias:.2f} mV')
     # k._hw._plot_readings(save_fig=False)
diff --git a/index.html b/index.html
index 88914ca66ea3ce37f1ac43f43d8eb224504ba276..99805072828a1187878bb6a598d9143ccec8105f 100755
--- a/index.html
+++ b/index.html
@@ -220,6 +220,12 @@ mosquitto_sub -h raspberrypi.local -t ohmpi_0001/ctrl
                     // process data
                     msg = payload // for accessing the variable from the console
                     console.log('DATA LOG:', payload)
+
+                    // replace NaN values by null to make them acceptable for json parser
+                    payload = payload.replace(/\bNaN\b/g, "null");
+                    payload = payload.replace(/\bnan\b/g, "null");
+
+                    // parse to json
                     let ddic = JSON.parse(payload.split('INFO:')[1])
 
                     // RS check data
@@ -516,7 +522,6 @@ mosquitto_sub -h raspberrypi.local -t ohmpi_0001/ctrl
                     // xpos.push((Math.min(ab, mn) + dist/2)*elec_spacing)
                     // ypos.push(- (Math.sqrt(2)/2*dist)*elec_spacing)
                 }
-                console.log('========', app, xpos, ypos)
                 // update the trace and redraw the figure
                 trace['x'] = xpos
                 trace['y'] = ypos
@@ -825,6 +830,10 @@ mosquitto_sub -h raspberrypi.local -t ohmpi_0001/ctrl
                 output.innerHTML = 'Status: ' + x['status'] + ' (all data cleared)'
                 console.log('all data removed')
             })
+            data = {}
+            quads = []
+            getData()
+            document.getElementById('quadSelect').innerHTML = ''
         }
         let removeDataBtn = document.getElementById('removeDataBtn')
         removeDataBtn.addEventListener('click', removeDataBtnFunc)
diff --git a/ohmpi/config.py b/ohmpi/config.py
index f3f566ba70a9fb3bf7797821b95578b28d48a232..0763f48ca2240311e01b281a1eea9571c324defd 100644
--- a/ohmpi/config.py
+++ b/ohmpi/config.py
@@ -1,7 +1,7 @@
 import logging
 from ohmpi.utils import get_platform
 
-from paho.mqtt.client import MQTTv31  # noqa
+from paho.mqtt.client import MQTTv31
 
 _, on_pi = get_platform()
 # DEFINE THE ID OF YOUR OhmPi
@@ -17,36 +17,26 @@ OHMPI_CONFIG = {
     'settings': 'ohmpi_settings.json',  # INSERT YOUR FAVORITE SETTINGS FILE HERE
 }
 
-r_shunt = 2.
 HARDWARE_CONFIG = {
-    'ctl': {'model': 'raspberry_pi'},
-    'pwr': {'model': 'pwr_batt', 'voltage': 12., 'interface_name': 'none'},
-    'tx':  {'model': 'mb_2023_0_X',
-             'voltage_max': 50.,  # Maximum voltage supported by the TX board [V]
-             'current_max': 4.80/(50*r_shunt),  # Maximum voltage read by the current ADC on the TX board [A]
-             'r_shunt': r_shunt,  # Shunt resistance in Ohms
-             'interface_name': 'i2c'
+    'ctl': {'model' : 'dummy_ctl'
+                   },
+    'tx' : {'model' : 'dummy_tx',
+             'current_max': 4800 / 50 / 2,  # Maximum current mA
+             'r_shunt': 2,  # Shunt resistance in Ohms
+             'low_battery': 12.  # Volts
             },
-    'rx':  {'model': 'mb_2023_0_X',
-            'coef_p2': 2.50,  # slope for conversion for ADS, measurement in V/V
-            'sampling_rate': 50.,  # number of samples per second
-            'interface_name': 'i2c',
+    'rx' : {'model': 'dummy_rx',
             },
-    'mux':  # default properties given in config are system properties that will be
-            # overwritten by properties defined in each the board dict below.
-            # if defined in board specs, values out of specs will be bounded to remain in specs
-            # omitted properties in config will be set to board specs default values if they exist
-            {'boards': {},
-             'default': {'interface_name': 'i2c',
-                         'voltage_max': 100.,
-                         'current_max': 3.}
-             }
+    'mux': {'model' : 'dummy_mux',
+             'max_elec': 64,
+             'voltage_max' : 100,
+             'current_max' : 3
+            }
 }
-
 # SET THE LOGGING LEVELS, MQTT BROKERS AND MQTT OPTIONS ACCORDING TO YOUR NEEDS
 # Execution logging configuration
 EXEC_LOGGING_CONFIG = {
-    'logging_level': logging.DEBUG,  # TODO: set logging level back to INFO
+    'logging_level': logging.INFO,
     'log_file_logging_level': logging.DEBUG,
     'logging_to_console': True,
     'file_name': f'exec{logging_suffix}.log',
@@ -70,8 +60,8 @@ DATA_LOGGING_CONFIG = {
 # State of Health logging configuration (For a future release)
 SOH_LOGGING_CONFIG = {
     'logging_level': logging.INFO,
-    'logging_to_console': True,
     'log_file_logging_level': logging.DEBUG,
+    'logging_to_console': True,
     'file_name': f'soh{logging_suffix}.log',
     'max_bytes': 16777216,
     'backup_count': 1024,
diff --git a/run_http_interface.sh b/run_http_interface.sh
index faa4924d61a7f83f76439c26130c3bdcd560a416..f80be4e3f91b765dd3b625978c37c0777f21cea0 100755
--- a/run_http_interface.sh
+++ b/run_http_interface.sh
@@ -1,5 +1,3 @@
 export PYTHONPATH=`pwd`
 source $PYTHONPATH/ohmpy/bin/activate
-python dev/start_mqtt_html.py &  # run ohmpi.py to capture the commands
-python -m http.server  # run web GUI
-
+python dev/start_mqtt_html.py