first commit

SARA/MQTT/get_config.py

@@ -0,0 +1,87 @@
+'''
+Script to see get the SARA R4 MQTT config
+ex: 
+/usr/bin/python3 /var/www/nebuleair_pro_4g/SARA/MQTT/get_config.py ttyAMA2 2
+'''
+
+import serial
+import time
+import sys
+import json
+
+parameter = sys.argv[1:]  # Exclude the script name
+#print("Parameters received:")
+port='/dev/'+parameter[0] # ex: ttyAMA2
+timeout = float(parameter[1])  # ex:2
+
+yellow_color = "\033[33m"  # ANSI escape code for yellow
+red_color = "\033[31m"     # ANSI escape code for red
+reset_color = "\033[0m"   # Reset color to default
+green_color = "\033[32m"   # Green
+
+#get baudrate
+def load_config(config_file):
+    try:
+        with open(config_file, 'r') as file:
+            config_data = json.load(file)
+        return config_data
+    except Exception as e:
+        print(f"Error loading config file: {e}")
+        return {}
+
+def read_complete_response(serial_connection, timeout=2, end_of_response_timeout=2):
+    response = bytearray()
+    serial_connection.timeout = timeout
+    end_time = time.time() + end_of_response_timeout
+
+    while True:
+        if serial_connection.in_waiting > 0:
+            data = serial_connection.read(serial_connection.in_waiting)
+            response.extend(data)
+            end_time = time.time() + end_of_response_timeout  # Reset timeout on new data
+        elif time.time() > end_time:
+            break
+        time.sleep(0.1)  # Short sleep to prevent busy waiting
+
+    # Decode the response and filter out empty lines
+    decoded_response = response.decode('utf-8')
+    non_empty_lines = "\n".join(line for line in decoded_response.splitlines() if line.strip())     
+
+    # Add yellow color to the output
+    
+    colored_output = f"{yellow_color}{non_empty_lines}\n{reset_color}"
+
+    return colored_output
+
+# Define the config file path
+config_file = '/var/www/nebuleair_pro_4g/config.json'
+# Load the configuration data
+config = load_config(config_file)
+# Access the shared variables
+baudrate = config.get('SaraR4_baudrate', 115200)
+
+ser = serial.Serial(
+    port=port,  #USB0 or ttyS0
+    baudrate=baudrate, #115200 ou 9600
+    parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
+    stopbits=serial.STOPBITS_ONE,
+    bytesize=serial.EIGHTBITS,
+    timeout = timeout
+)
+
+
+ser.write(b'AT+UMQTT?\r')            #General Information
+
+
+try:
+    response_SARA_1 = read_complete_response(ser)
+    print(response_SARA_1) 
+
+except serial.SerialException as e:
+    print(f"Error: {e}")
+
+finally:
+    if ser.is_open:
+        ser.close()
+        #print("Serial closed")
+

SARA/MQTT/login_logout.py

@@ -0,0 +1,90 @@
+'''
+Script to see get the SARA R4 MQTT config
+ex: 
+/usr/bin/python3 /var/www/nebuleair_pro_4g/SARA/MQTT/login_logout.py ttyAMA2 1 2
+'''
+
+import serial
+import time
+import sys
+import json
+
+parameter = sys.argv[1:]  # Exclude the script name
+#print("Parameters received:")
+port='/dev/'+parameter[0] # ex: ttyAMA2
+login_logout = int(parameter[1])  # ex:1
+timeout = float(parameter[2])  # ex:2
+
+
+yellow_color = "\033[33m"  # ANSI escape code for yellow
+red_color = "\033[31m"     # ANSI escape code for red
+reset_color = "\033[0m"   # Reset color to default
+green_color = "\033[32m"   # Green
+
+#get baudrate
+def load_config(config_file):
+    try:
+        with open(config_file, 'r') as file:
+            config_data = json.load(file)
+        return config_data
+    except Exception as e:
+        print(f"Error loading config file: {e}")
+        return {}
+
+def read_complete_response(serial_connection, timeout=2, end_of_response_timeout=2):
+    response = bytearray()
+    serial_connection.timeout = timeout
+    end_time = time.time() + end_of_response_timeout
+
+    while True:
+        if serial_connection.in_waiting > 0:
+            data = serial_connection.read(serial_connection.in_waiting)
+            response.extend(data)
+            end_time = time.time() + end_of_response_timeout  # Reset timeout on new data
+        elif time.time() > end_time:
+            break
+        time.sleep(0.1)  # Short sleep to prevent busy waiting
+
+    # Decode the response and filter out empty lines
+    decoded_response = response.decode('utf-8')
+    non_empty_lines = "\n".join(line for line in decoded_response.splitlines() if line.strip())     
+
+    # Add yellow color to the output
+    
+    colored_output = f"{yellow_color}{non_empty_lines}\n{reset_color}"
+
+    return colored_output
+
+
+# Define the config file path
+config_file = '/var/www/nebuleair_pro_4g/config.json'
+# Load the configuration data
+config = load_config(config_file)
+# Access the shared variables
+baudrate = config.get('SaraR4_baudrate', 115200)
+
+ser = serial.Serial(
+    port=port,  #USB0 or ttyS0
+    baudrate=baudrate, #115200 ou 9600
+    parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
+    stopbits=serial.STOPBITS_ONE,
+    bytesize=serial.EIGHTBITS,
+    timeout = timeout
+)
+
+command = f'AT+UMQTTC={login_logout}\r'
+ser.write((command + '\r').encode('utf-8'))
+
+
+try:
+    response_SARA_1 = read_complete_response(ser)
+    print(response_SARA_1) 
+
+except serial.SerialException as e:
+    print(f"Error: {e}")
+
+finally:
+    if ser.is_open:
+        ser.close()
+        #print("Serial closed")
+

SARA/MQTT/publish.py

@@ -0,0 +1,89 @@
+'''
+Script to publish a message via MQTT 
+
+
+/usr/bin/python3 /var/www/nebuleair_pro_4g/SARA/MQTT/publish.py ttyAMA2 Hello 2
+
+'''
+
+import serial
+import time
+import sys
+import json
+
+parameter = sys.argv[1:]  # Exclude the script name
+port='/dev/'+parameter[0] # ex: ttyAMA2
+message = parameter[1]  # ex: Hello 
+timeout = float(parameter[2])  # ex:2
+
+yellow_color = "\033[33m"  # ANSI escape code for yellow
+red_color = "\033[31m"     # ANSI escape code for red
+reset_color = "\033[0m"   # Reset color to default
+green_color = "\033[32m"   # Green
+
+def read_complete_response(serial_connection, timeout=2, end_of_response_timeout=2):
+    response = bytearray()
+    serial_connection.timeout = timeout
+    end_time = time.time() + end_of_response_timeout
+
+    while True:
+        if serial_connection.in_waiting > 0:
+            data = serial_connection.read(serial_connection.in_waiting)
+            response.extend(data)
+            end_time = time.time() + end_of_response_timeout  # Reset timeout on new data
+        elif time.time() > end_time:
+            break
+        time.sleep(0.1)  # Short sleep to prevent busy waiting
+
+    # Decode the response and filter out empty lines
+    decoded_response = response.decode('utf-8')
+    non_empty_lines = "\n".join(line for line in decoded_response.splitlines() if line.strip())     
+
+    # Add yellow color to the output
+    
+    colored_output = f"{yellow_color}{non_empty_lines}\n{reset_color}"
+
+    return colored_output
+
+
+#get baudrate
+def load_config(config_file):
+    try:
+        with open(config_file, 'r') as file:
+            config_data = json.load(file)
+        return config_data
+    except Exception as e:
+        print(f"Error loading config file: {e}")
+        return {}
+
+# Define the config file path
+config_file = '/var/www/nebuleair_pro_4g/config.json'
+# Load the configuration data
+config = load_config(config_file)
+# Access the shared variables
+baudrate = config.get('SaraR4_baudrate', 115200)
+
+ser = serial.Serial(
+    port=port,  #USB0 or ttyS0
+    baudrate=baudrate, #115200 ou 9600
+    parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
+    stopbits=serial.STOPBITS_ONE,
+    bytesize=serial.EIGHTBITS,
+    timeout = timeout
+)
+
+command = f'AT+UMQTTC=2,0,0,"notif","{message}"\r'
+ser.write((command + '\r').encode('utf-8'))
+
+try:
+     response_SARA_1 = read_complete_response(ser)
+    print(response_SARA_1) 
+    
+except serial.SerialException as e:
+    print(f"Error: {e}")
+
+finally:
+    if ser.is_open:
+        ser.close()
+        #print("Serial closed")
+

SARA/MQTT/set_config.py

@@ -0,0 +1,94 @@
+'''
+Script to connect set the MQTT config
+1:  local TCP port number
+2:  server name
+3:  server IP addr
+
+/usr/bin/python3 /var/www/nebuleair_pro_4g/SARA/MQTT/set_config.py ttyAMA2 2 aircarto.fr 2
+
+'''
+
+import serial
+import time
+import sys
+import json
+
+parameter = sys.argv[1:]  # Exclude the script name
+port='/dev/'+parameter[0] # ex: ttyAMA2
+config_id = parameter[1]  # ex: 1
+config_value = parameter[2]  # ex: aircarto.fr
+
+timeout = float(parameter[3])  # ex:2
+
+yellow_color = "\033[33m"  # ANSI escape code for yellow
+red_color = "\033[31m"     # ANSI escape code for red
+reset_color = "\033[0m"   # Reset color to default
+green_color = "\033[32m"   # Green
+
+def read_complete_response(serial_connection, timeout=2, end_of_response_timeout=2):
+    response = bytearray()
+    serial_connection.timeout = timeout
+    end_time = time.time() + end_of_response_timeout
+
+    while True:
+        if serial_connection.in_waiting > 0:
+            data = serial_connection.read(serial_connection.in_waiting)
+            response.extend(data)
+            end_time = time.time() + end_of_response_timeout  # Reset timeout on new data
+        elif time.time() > end_time:
+            break
+        time.sleep(0.1)  # Short sleep to prevent busy waiting
+
+    # Decode the response and filter out empty lines
+    decoded_response = response.decode('utf-8')
+    non_empty_lines = "\n".join(line for line in decoded_response.splitlines() if line.strip())     
+
+    # Add yellow color to the output
+    
+    colored_output = f"{yellow_color}{non_empty_lines}\n{reset_color}"
+
+    return colored_output
+
+
+#get baudrate
+def load_config(config_file):
+    try:
+        with open(config_file, 'r') as file:
+            config_data = json.load(file)
+        return config_data
+    except Exception as e:
+        print(f"Error loading config file: {e}")
+        return {}
+
+# Define the config file path
+config_file = '/var/www/nebuleair_pro_4g/config.json'
+# Load the configuration data
+config = load_config(config_file)
+# Access the shared variables
+baudrate = config.get('SaraR4_baudrate', 115200)
+
+ser = serial.Serial(
+    port=port,  #USB0 or ttyS0
+    baudrate=baudrate, #115200 ou 9600
+    parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
+    stopbits=serial.STOPBITS_ONE,
+    bytesize=serial.EIGHTBITS,
+    timeout = timeout
+)
+
+command = f'AT+UMQTT={config_id},"{config_value}"\r'
+ser.write((command + '\r').encode('utf-8'))
+
+
+try:
+    response_SARA_1 = read_complete_response(ser)
+    print(response_SARA_1) 
+
+except serial.SerialException as e:
+    print(f"Error: {e}")
+
+finally:
+    if ser.is_open:
+        ser.close()
+        #print("Serial closed")
+

SARA/sara.py

@@ -0,0 +1,82 @@
+'''
+Script to see if the SARA-R410 is running
+ex: 
+python3 /var/www/nebuleair_pro_4g/SARA/sara.py ttyAMA2 AT+CCID? 2
+'''
+
+import serial
+import time
+import sys
+import json
+
+parameter = sys.argv[1:]  # Exclude the script name
+#print("Parameters received:")
+port='/dev/'+parameter[0] # ex: ttyAMA2
+command = parameter[1]  # ex: AT+CCID?
+timeout = float(parameter[2])  # ex:2
+
+#get baudrate
+def load_config(config_file):
+    try:
+        with open(config_file, 'r') as file:
+            config_data = json.load(file)
+        return config_data
+    except Exception as e:
+        print(f"Error loading config file: {e}")
+        return {}
+
+# Define the config file path
+config_file = '/var/www/nebuleair_pro_4g/config.json'
+# Load the configuration data
+config = load_config(config_file)
+# Access the shared variables
+baudrate = config.get('SaraR4_baudrate', 115200)
+
+ser = serial.Serial(
+    port=port,  #USB0 or ttyS0
+    baudrate=baudrate, #115200 ou 9600
+    parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
+    stopbits=serial.STOPBITS_ONE,
+    bytesize=serial.EIGHTBITS,
+    timeout = timeout
+)
+
+ser.write((command + '\r').encode('utf-8'))
+
+#ser.write(b'ATI\r')            #General Information
+#ser.write(b'AT+CCID?\r')       #SIM card number
+#ser.write(b'AT+CPIN?\r')       #Check the status of the SIM card
+#ser.write(b'AT+CIND?\r')       #Indication state (last number is SIM detection: 0 no SIM detection, 1 SIM detected, 2 not available)
+#ser.write(b'AT+UGPIOR=?\r')   #Reads the current value of the specified GPIO pin
+#ser.write(b'AT+UGPIOC?\r')     #GPIO select configuration
+#ser.write(b'AT+COPS=?\r')     #Check the network and cellular technology the modem is currently using
+#ser.write(b'AT+COPS=1,2,20801') #connext to orange
+#ser.write(b'AT+CFUN=?\r')     #Selects/read the level of functionality 
+#ser.write(b'AT+URAT=?\r')     #Radio Access Technology 
+#ser.write(b'AT+USIMSTAT?')
+#ser.write(b'AT+IPR=115200')           #Check/Define baud rate
+#ser.write(b'AT+CMUX=?')
+
+
+
+try:
+    # Read lines until a timeout occurs
+    response_lines = []
+    while True:
+        line = ser.readline().decode('utf-8').strip()
+        if not line:
+            break  # Break the loop if an empty line is encountered
+        response_lines.append(line)
+
+    # Print the response
+    for line in response_lines:
+        print(line)
+
+except serial.SerialException as e:
+    print(f"Error: {e}")
+
+finally:
+    if ser.is_open:
+        ser.close()
+        #print("Serial closed")
+

SARA/sara_connectNetwork.py

@@ -0,0 +1,70 @@
+'''
+Script to connect SARA-R410 to network SARA-R410
+AT+COPS=1,2,20801
+mode->1 pour manual
+format->2 pour numeric
+operator->20801 pour orange
+'''
+
+import serial
+import time
+import sys
+import json
+
+parameter = sys.argv[1:]  # Exclude the script name
+port='/dev/'+parameter[0] # ex: ttyAMA2
+networkID = parameter[1]  # ex: 20801
+timeout = float(parameter[2])  # ex:2
+
+
+#get baudrate
+def load_config(config_file):
+    try:
+        with open(config_file, 'r') as file:
+            config_data = json.load(file)
+        return config_data
+    except Exception as e:
+        print(f"Error loading config file: {e}")
+        return {}
+
+# Define the config file path
+config_file = '/var/www/nebuleair_pro_4g/config.json'
+# Load the configuration data
+config = load_config(config_file)
+# Access the shared variables
+baudrate = config.get('SaraR4_baudrate', 115200)
+
+ser = serial.Serial(
+    port=port,  #USB0 or ttyS0
+    baudrate=baudrate, #115200 ou 9600
+    parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
+    stopbits=serial.STOPBITS_ONE,
+    bytesize=serial.EIGHTBITS,
+    timeout = timeout
+)
+
+command = f'AT+COPS=1,2,"{networkID}"\r'
+ser.write((command + '\r').encode('utf-8'))
+
+
+try:
+    # Read lines until a timeout occurs
+    response_lines = []
+    while True:
+        line = ser.readline().decode('utf-8').strip()
+        if not line:
+            break  # Break the loop if an empty line is encountered
+        response_lines.append(line)
+
+    # Print the response
+    for line in response_lines:
+        print(line)
+
+except serial.SerialException as e:
+    print(f"Error: {e}")
+
+finally:
+    if ser.is_open:
+        ser.close()
+        #print("Serial closed")
+

SARA/sara_eraseMessage.py

@@ -0,0 +1,65 @@
+'''
+Script to erase memory to SARA-R410 memory
+'''
+
+import serial
+import time
+import sys
+import json
+
+parameter = sys.argv[1:]  # Exclude the script name
+port='/dev/'+parameter[0] # ex: ttyAMA2
+message = parameter[1]  # ex: Hello
+
+#get baudrate
+def load_config(config_file):
+    try:
+        with open(config_file, 'r') as file:
+            config_data = json.load(file)
+        return config_data
+    except Exception as e:
+        print(f"Error loading config file: {e}")
+        return {}
+
+# Define the config file path
+config_file = '/var/www/nebuleair_pro_4g/config.json'
+# Load the configuration data
+config = load_config(config_file)
+# Access the shared variables
+baudrate = config.get('SaraR4_baudrate', 115200)
+
+ser = serial.Serial(
+    port=port,  #USB0 or ttyS0
+    baudrate=baudrate, #115200 ou 9600
+    parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
+    stopbits=serial.STOPBITS_ONE,
+    bytesize=serial.EIGHTBITS,
+    timeout = 2
+)
+
+#0. empty file
+ser.write(b'AT+UDELFILE="sensordata.json"\r')
+
+
+
+try:
+    # Read lines until a timeout occurs
+    response_lines = []
+    while True:
+        line = ser.readline().decode('utf-8').strip()
+        if not line:
+            break  # Break the loop if an empty line is encountered
+        response_lines.append(line)
+
+    # Print the response
+    for line in response_lines:
+        print(line)
+
+except serial.SerialException as e:
+    print(f"Error: {e}")
+
+finally:
+    if ser.is_open:
+        ser.close()
+        #print("Serial closed")
+

SARA/sara_readMessage.py

@@ -0,0 +1,62 @@
+'''
+Script to read memory to SARA-R410 memory
+'''
+
+import serial
+import time
+import sys
+import json
+
+parameter = sys.argv[1:]  # Exclude the script name
+port='/dev/'+parameter[0] # ex: ttyAMA2
+message = parameter[1]  # ex: Hello
+
+#get baudrate
+def load_config(config_file):
+    try:
+        with open(config_file, 'r') as file:
+            config_data = json.load(file)
+        return config_data
+    except Exception as e:
+        print(f"Error loading config file: {e}")
+        return {}
+
+# Define the config file path
+config_file = '/var/www/nebuleair_pro_4g/config.json'
+# Load the configuration data
+config = load_config(config_file)
+# Access the shared variables
+baudrate = config.get('SaraR4_baudrate', 115200)
+
+ser = serial.Serial(
+    port=port,  #USB0 or ttyS0
+    baudrate=baudrate, #115200 ou 9600
+    parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
+    stopbits=serial.STOPBITS_ONE,
+    bytesize=serial.EIGHTBITS,
+    timeout = 2
+)
+
+ser.write(b'AT+URDFILE="sensordata.json"\r')              
+
+try:
+    # Read lines until a timeout occurs
+    response_lines = []
+    while True:
+        line = ser.readline().decode('utf-8').strip()
+        if not line:
+            break  # Break the loop if an empty line is encountered
+        response_lines.append(line)
+
+    # Print the response
+    for line in response_lines:
+        print(line)
+
+except serial.SerialException as e:
+    print(f"Error: {e}")
+
+finally:
+    if ser.is_open:
+        ser.close()
+        #print("Serial closed")
+

SARA/sara_sendMessage.py

@@ -0,0 +1,63 @@
+'''
+Script to send message to URL with SARA-R410
+'''
+
+import serial
+import time
+import sys
+import json
+
+parameter = sys.argv[1:]  # Exclude the script name
+port='/dev/'+parameter[0] # ex: ttyAMA2
+endpoint = parameter[1]  # ex: /pro_4G/notif_message.php
+
+#get baudrate
+def load_config(config_file):
+    try:
+        with open(config_file, 'r') as file:
+            config_data = json.load(file)
+        return config_data
+    except Exception as e:
+        print(f"Error loading config file: {e}")
+        return {}
+
+# Define the config file path
+config_file = '/var/www/nebuleair_pro_4g/config.json'
+# Load the configuration data
+config = load_config(config_file)
+# Access the shared variables
+baudrate = config.get('SaraR4_baudrate', 115200)
+
+ser = serial.Serial(
+    port=port,  #USB0 or ttyS0
+    baudrate=baudrate, #115200 ou 9600
+    parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
+    stopbits=serial.STOPBITS_ONE,
+    bytesize=serial.EIGHTBITS,
+    timeout = 2
+)
+
+command= f'AT+UHTTPC=0,4,"{endpoint}","data.txt","sensordata.json",4\r'                                                                                            
+ser.write((command + '\r').encode('utf-8'))
+
+try:
+    # Read lines until a timeout occurs
+    response_lines = []
+    while True:
+        line = ser.readline().decode('utf-8').strip()
+        if not line:
+            break  # Break the loop if an empty line is encountered
+        response_lines.append(line)
+
+    # Print the response
+    for line in response_lines:
+        print(line)
+
+except serial.SerialException as e:
+    print(f"Error: {e}")
+
+finally:
+    if ser.is_open:
+        ser.close()
+        #print("Serial closed")
+

SARA/sara_setURL.py

@@ -0,0 +1,69 @@
+'''
+Script to set the URL for a HTTP request
+'''
+
+import serial
+import time
+import sys
+import json
+
+parameter = sys.argv[1:]  # Exclude the script name
+#print("Parameters received:")
+port='/dev/'+parameter[0] # ex: ttyAMA2
+url = parameter[1]  # ex: data.mobileair.fr
+
+
+#get baudrate
+def load_config(config_file):
+    try:
+        with open(config_file, 'r') as file:
+            config_data = json.load(file)
+        return config_data
+    except Exception as e:
+        print(f"Error loading config file: {e}")
+        return {}
+
+# Define the config file path
+config_file = '/var/www/nebuleair_pro_4g/config.json'
+# Load the configuration data
+config = load_config(config_file)
+# Access the shared variables
+baudrate = config.get('SaraR4_baudrate', 115200)
+
+ser = serial.Serial(
+    port=port,  #USB0 or ttyS0
+    baudrate=baudrate, #115200 ou 9600
+    parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
+    stopbits=serial.STOPBITS_ONE,
+    bytesize=serial.EIGHTBITS,
+    timeout = 2
+)
+
+command = f'AT+UHTTP=0,1,"{url}"\r'
+ser.write((command + '\r').encode('utf-8'))
+
+print("****")
+print("SET URL (SARA)")
+
+try:
+    # Read lines until a timeout occurs
+    response_lines = []
+    while True:
+        line = ser.readline().decode('utf-8').strip()
+        if not line:
+            break  # Break the loop if an empty line is encountered
+        response_lines.append(line)
+
+    # Print the response
+    for line in response_lines:
+        print(line)
+
+except serial.SerialException as e:
+    print(f"Error: {e}")
+
+finally:
+    if ser.is_open:
+        ser.close()
+        print("****")
+        #print("Serial closed")
+

SARA/sara_writeMessage.py

@@ -0,0 +1,71 @@
+'''
+Script to write message to SARA-R410 memory
+'''
+
+import serial
+import time
+import sys
+import json
+
+parameter = sys.argv[1:]  # Exclude the script name
+port='/dev/'+parameter[0] # ex: ttyAMA2
+message = parameter[1]  # ex: Hello
+
+#get baudrate
+def load_config(config_file):
+    try:
+        with open(config_file, 'r') as file:
+            config_data = json.load(file)
+        return config_data
+    except Exception as e:
+        print(f"Error loading config file: {e}")
+        return {}
+
+# Define the config file path
+config_file = '/var/www/nebuleair_pro_4g/config.json'
+# Load the configuration data
+config = load_config(config_file)
+# Access the shared variables
+baudrate = config.get('SaraR4_baudrate', 115200)
+
+ser = serial.Serial(
+    port=port,  #USB0 or ttyS0
+    baudrate=baudrate, #115200 ou 9600
+    parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
+    stopbits=serial.STOPBITS_ONE,
+    bytesize=serial.EIGHTBITS,
+    timeout = 2
+)
+
+#0. empty file
+#ser.write(b'AT+UDELFILE="sensordata.json"\r')
+
+#1. Open sensordata.json (with correct data size)
+size_of_string = len(message)
+command = f'AT+UDWNFILE="sensordata.json",{size_of_string}\r'
+ser.write((command + '\r').encode('utf-8'))
+time.sleep(1)
+#2. Write to shell
+ser.write(message.encode())
+
+try:
+    # Read lines until a timeout occurs
+    response_lines = []
+    while True:
+        line = ser.readline().decode('utf-8').strip()
+        if not line:
+            break  # Break the loop if an empty line is encountered
+        response_lines.append(line)
+
+    # Print the response
+    for line in response_lines:
+        print(line)
+
+except serial.SerialException as e:
+    print(f"Error: {e}")
+
+finally:
+    if ser.is_open:
+        ser.close()
+        #print("Serial closed")
+