#!/usr/bin/python3import timeimport serialprint("UART Demonstration Program")print("NVIDIA Jetson Nano Developer Kit")serial_port = serial.Serial( port="/dev/ttyTHS1", #这里注意一下这个端口号 baudrate=115200, bytesize=serial.EIGHTBITS, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE,)with open(r"t.txt",'r',encoding = 'utf8' ) as f: c = f.read() print(c) serial_port.write(c.encode('utf-8'))# c = '1lrlfrblflrrbrrllblbffllblfrrlffrllblbffllblff2'# serial_port.write(c.encode('utf-8'))