import serial
import time
ser = serial.Serial(3)
x = 5
while True:
    num = int(ser.read(5))
    if(num <=226):#when dim
	    x+=1
    else:
	x-=1
    if x >20:
	x = 20
    elif x<0 :
	x = 0

    print " " * x,"(ToT)/"
    time.sleep(0.5)