update

SARA/sara.py

@@ -49,6 +49,9 @@ config = load_config(config_file)
 # Access the shared variables
 baudrate = config.get('SaraR4_baudrate', 115200)
 
+
+try:
+
     ser = serial.Serial(
         port=port,  #USB0 or ttyS0
         baudrate=baudrate, #115200 ou 9600
@@ -75,25 +78,33 @@ ser.write((command + '\r').encode('utf-8'))
     #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
+    start_time = time.time()
+
+    while (time.time() - start_time) < timeout:
+        line = ser.readline().decode('utf-8', errors='ignore').strip()
+        if line:
             response_lines.append(line)
 
+    # Check if we received any data
+    if not response_lines:
+        print(f"ERROR: No response received from {port} after sending command: {command}")
+        sys.exit(1)
+
     # Print the response
     for line in response_lines:
         print(line)
 
 except serial.SerialException as e:
-    print(f"Error: {e}")
-
+    print(f"ERROR: Serial communication error: {e}")
+    sys.exit(1)
+except Exception as e:
+    print(f"ERROR: Unexpected error: {e}")
+    sys.exit(1)
 finally:
-    if ser.is_open:
+    # Close the serial port if it's open
+    if 'ser' in locals() and ser.is_open:
         ser.close()
-        #print("Serial closed")
+