Python, Basit bir rs232 örneği (unix/linux)

import serial
import time

ser=serial.Serial("/dev/ttyS0",9600)

def write():
    for i in range(10):
        a= ("%3d"%i) +" _ "+ ("%5d"%(i*i))+"\n"
        ser.write(a)
    time.sleep(0.5)
   

write()