linux网关串口程序

# 检查设备是否存在
ls /dev/ttyUSB0

# 检查权限
ls -l /dev/ttyUSB0

# 修改权限
sudo chmod 666 /dev/ttyUSB0

import serial

ser = serial.Serial('/dev/ttyUSB0', 9600, timeout=1)
ser.flushInput()
ser.flushOutput()

while True:
    data = ser.readline().decode('utf-8').rstrip()
    if data:
        print(data)

import serial

def read_serial_data(port, baudrate):
    try:
        ser = serial.Serial(port, baudrate, timeout=1)
        ser.flushInput()
        ser.flushOutput()
        print(f"Connected to {port} at {baudrate} baud")
        while True:
            data = ser.readline().decode('utf-8').rstrip()
            if data:
                print(data)
    except serial.SerialException as e:
        print(f"Error: {e}")
    finally:
        ser.close()

if __name__ == "__main__":
    read_serial_data('/dev/ttyUSB0', 9600)