"""
LineSense
Objective 5
"""
from botcore import *

def detect_line(n):
    val = ls.read(n)
    is_detected = val < threshold
    leds.ls_num(n, is_detected)

def scan_lines():
    n = 0
    while n < 5:
        detect_line(n)
        n = n + 1

threshold = 2000

while True:
    scan_lines()