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```python
import serial
from serial.tools import list_ports
ports = list(list_ports.comports())
i = 1
for p in ports:
print(i, ' - ', p.device)
i += 1
port = 8 # int(input('Введите номер COM-порта: '))
baudrate = 115200 # int(input('Введите скорость COM-порта: '))
while port > len(ports):
print("Такого порта - НЕТ !")
port = int(input('Введите номер COM-порта: '))
print(ports[port - 1].device)
try:
ser = serial.Serial(ports[port - 1].device, baudrate=baudrate)
print("Serial connection established.")
while True:
line = ser.readline().decode().strip()
if line:
print(line)
except serial.SerialException as se:
print("Serial port error:", str(se))
except KeyboardInterrupt:
pass
finally:
if ser.is_open:
ser.close()
print("Serial connection closed.")
```
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