from machine import Pin
import time

# ================= SHIFT REGISTER PINLER =================
data  = Pin(0, Pin.OUT)
clock = Pin(1, Pin.OUT)
latch = Pin(5, Pin.OUT)

data.value(0)
clock.value(0)
latch.value(0)

# ================= LED MAPPING =================
YESIL   = 0b00000001
SARI    = 0b00000010
KIRMIZI = 0b00000100

# ================= SHIFT REGISTER =================
def shift_out(value):
    latch.value(0)
    time.sleep_us(50)
    for i in range(7, -1, -1):
        clock.value(0)
        bit = (value >> i) & 1
        data.value(bit)
        time.sleep_us(100)
        clock.value(1)
        time.sleep_us(100)
    clock.value(0)
    data.value(0)
    time.sleep_us(50)
    latch.value(1)
    time.sleep_us(500)
    latch.value(0)
    time.sleep_us(100)

# ================= LCD =================
class LCD:
    def __init__(self, rs, e, d4, d5, d6, d7):
        self.rs = Pin(rs, Pin.OUT)
        self.e  = Pin(e,  Pin.OUT)
        self.data_pins = [
            Pin(d4, Pin.OUT),
            Pin(d5, Pin.OUT),
            Pin(d6, Pin.OUT),
            Pin(d7, Pin.OUT)
        ]
        self.init_lcd()

    def pulse_enable(self):
        self.e.value(1)
        time.sleep_us(100)
        self.e.value(0)
        time.sleep_us(100)

    def send_nibble(self, data):
        for i in range(4):
            self.data_pins[i].value((data >> i) & 1)
        self.pulse_enable()

    def send_byte(self, data, rs):
        self.rs.value(rs)
        self.send_nibble(data >> 4)
        self.send_nibble(data & 0x0F)

    def init_lcd(self):
        time.sleep_ms(50)
        self.send_nibble(0x03)
        time.sleep_ms(5)
        self.send_nibble(0x03)
        time.sleep_ms(5)
        self.send_nibble(0x03)
        time.sleep_ms(1)
        self.send_nibble(0x02)
        self.send_byte(0x28, 0)
        self.send_byte(0x0C, 0)
        self.send_byte(0x06, 0)
        self.send_byte(0x01, 0)
        time.sleep_ms(5)

    def print(self, text):
        for char in text:
            self.send_byte(ord(char), 1)

    def clear(self):
        self.send_byte(0x01, 0)
        time.sleep_ms(3)

    def set_cursor(self, row, col):
        addr = (0x80 + col) if row == 0 else (0xC0 + col)
        self.send_byte(addr, 0)

# ================= LCD INIT =================
lcd = LCD(12, 11, 10, 9, 8, 7)
shift_out(0)
print("Format: Sicaklik,Agirlik")
print("Ornek: 25,300")

# ================= MAIN LOOP =================
while True:
    try:
        line = input("Gir (T,W): ")
        temp_str, weight_str = line.split(",")
        temp   = float(temp_str)
        weight = float(weight_str)

        if temp > 25:
            durum = "COK SICAK"
            led   = KIRMIZI
        elif temp >= 15:
            durum = "NORMAL"
            led   = SARI
        else:
            durum = "DUSUK"
            led   = YESIL

        # Önce LCD
        lcd.clear()
        lcd.set_cursor(0, 0)
        lcd.print("T:{:.1f}C".format(temp))
        lcd.set_cursor(1, 0)
        lcd.print("W:{:.0f}g".format(weight))

        # Sonra LED
        shift_out(led)

        print("Durum:", durum)

    except Exception as e:
        print("Format hatali! Hata:", e)

    time.sleep(0.3)