update

SARA/UDP/sendUDP_message.py

@@ -0,0 +1,130 @@
+'''
+  ____    _    ____      _    
+ / ___|  / \  |  _ \    / \   
+ \___ \ / _ \ | |_) |  / _ \  
+  ___) / ___ \|  _ <  / ___ \ 
+ |____/_/   \_\_| \_\/_/   \_\
+                              
+Script to set the PDP context for the SARA R5
+
+
+/usr/bin/python3 /var/www/nebuleair_pro_4g/SARA/UDP/sendUDP_message.py
+
+'''
+import serial
+import time
+import sys
+import json
+import re
+
+
+
+ser_sara = serial.Serial(
+    port='/dev/ttyAMA2',
+    baudrate=115200, #115200 ou 9600
+    parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
+    stopbits=serial.STOPBITS_ONE,
+    bytesize=serial.EIGHTBITS,
+    timeout = 2
+)
+
+def read_complete_response(serial_connection, timeout=2, end_of_response_timeout=2, wait_for_lines=None, debug=True):
+    '''
+    Fonction très importante !!!
+    Reads the complete response from a serial connection and waits for specific lines.
+    '''
+    if wait_for_lines is None:
+        wait_for_lines = []  # Default to an empty list if not provided
+
+    response = bytearray()
+    serial_connection.timeout = timeout
+    end_time = time.time() + end_of_response_timeout
+    start_time = time.time()
+
+    while True:
+        elapsed_time = time.time() - start_time  # Time since function start
+        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
+
+            # Decode and check for any target line
+            decoded_response = response.decode('utf-8', errors='replace')
+            for target_line in wait_for_lines:
+                if target_line in decoded_response:
+                    if debug:
+                        print(f"[DEBUG] 🔎 Found target line: {target_line} (in {elapsed_time:.2f}s)")
+                    return decoded_response  # Return response immediately if a target line is found
+        elif time.time() > end_time:
+            if debug:
+                print(f"[DEBUG] Timeout reached. No more data received.")
+            break
+        time.sleep(0.1)  # Short sleep to prevent busy waiting
+
+    # Final response and debug output
+    total_elapsed_time = time.time() - start_time
+    if debug:
+        print(f"[DEBUG] ⏱️ elapsed time: {total_elapsed_time:.2f}s. ⏱️")
+    # Check if the elapsed time exceeded 10 seconds
+    if total_elapsed_time > 10 and debug:
+        print(f"[ALERT] 🚨 The operation took too long 🚨")
+        print(f'<span style="color: red;font-weight: bold;">[ALERT] ⚠️{total_elapsed_time:.2f}s⚠️</span>')
+
+    return response.decode('utf-8', errors='replace')  # Return the full response if no target line is found
+
+try:
+    print('Start script')
+
+    # Increase verbosity
+    command = f'AT+CMEE=2\r'
+    ser_sara.write(command.encode('utf-8'))
+    response_SARA_1 = read_complete_response(ser_sara, wait_for_lines=["OK", "ERROR"])
+    print(response_SARA_1, end="")
+    time.sleep(1)
+
+    # 1. Create SOCKET
+    print('➡️Create SOCKET')
+    command = f'AT+USOCR=17\r'
+    ser_sara.write(command.encode('utf-8'))
+    response_SARA_1 = read_complete_response(ser_sara, wait_for_lines=["OK", "ERROR"])
+    print(response_SARA_1, end="")
+    time.sleep(1)
+
+    # 2. Retreive Socket ID
+    match = re.search(r'\+USOCR:\s*(\d+)', response_SARA_1)
+    if match:
+        socket_id = match.group(1)
+        print(f"Socket ID: {socket_id}")
+    else:
+        print("Failed to extract socket ID")
+
+            
+    #3. Connect to UDP server
+    print("Connect to server:")
+    command = f'AT+USOCO={socket_id},"192.168.0.20",4242\r'
+    ser_sara.write(command.encode('utf-8'))
+    response_SARA_2 = read_complete_response(ser_sara, wait_for_lines=["OK", "+CME ERROR", "ERROR"], debug=False)
+    print(response_SARA_2)
+
+    # 4. Write data and send
+    print("Write data:")
+    command = f'AT+USOWR={socket_id},10\r'
+    ser_sara.write(command.encode('utf-8'))
+    response_SARA_2 = read_complete_response(ser_sara, wait_for_lines=["@","OK", "+CME ERROR", "ERROR"], debug=False)
+    print(response_SARA_2)
+
+    ser_sara.write("1234567890".encode())
+    response_SARA_2 = read_complete_response(ser_sara, wait_for_lines=["@","OK", "+CME ERROR", "ERROR"], debug=False)
+    print(response_SARA_2)
+
+    #Close socket
+    print("Close socket:")
+    command = f'AT+USOCL={socket_id}\r'
+    ser_sara.write(command.encode('utf-8'))
+    response_SARA_2 = read_complete_response(ser_sara, wait_for_lines=["OK", "+CME ERROR", "ERROR"], debug=False)
+    print(response_SARA_2)
+       
+
+except Exception as e:
+    print("An error occurred:", e)
+    traceback.print_exc()  # This prints the full traceback