from machine import Pin
import time
import utime
button1 = Pin(13, Pin.IN, Pin.PULL_UP) 
button2 = Pin(18, Pin.IN, Pin.PULL_UP) 
TRIG = Pin(22, Pin.OUT)
ECHO = Pin(21, Pin.IN)
led_pin = Pin(4, Pin.OUT)

with open("input.txt", "r") as f:
    line = f.readline().strip()
    T_LIST = list(map(int, line.split()))

T_index = 0
T = T_LIST[T_index]

print("T_LIST =", T_LIST)
print("초기 주기 T =", T)

prev_b1 = 1 
prev_b2 = 1
is_blinking = False  

while True:
    b1 = button1.value()
    b2 = button2.value()
    
    if b1 == 0 and prev_b1 == 1 and not is_blinking:
        T_index = (T_index + 1) % len(T_LIST)
        T = T_LIST[T_index]
        print("주기 전환됨 -> T =", T)
        time.sleep(0.5)
   
    if b2 == 0 and prev_b2 == 1 and not is_blinking:
        print("버튼2 눌림 -> 거리 측정 시작")
        is_blinking = True 
        
        TRIG.low()
        utime.sleep(0.0002)
        TRIG.high()
        utime.sleep(0.0005)
        TRIG.low()

        while ECHO.value() == 0:
            start = utime.ticks_us()
        while ECHO.value() == 1:
            stop = utime.ticks_us()

        distance = (stop - start) * 0.034 / 2
        print("측정된 거리:", distance)
        C = int(distance // 100) + 1
        print(T, C)
      
        for k in range(C):
          led_pin.value(1)
          time.sleep(T/2)
          led_pin.value(0)
          time.sleep(T/2)
        is_blinking = False
        print("제어 종료")
        time.sleep(1)