from machine import Pin, I2C
import time
import dht
import framebuf
from sh1106 import SH1106_I2C

# OLED bağlantısı
i2c = I2C(0, scl=Pin(1), sda=Pin(0))
oled = SH1106_I2C(128, 64, i2c)

# DHT22 sensör
sensor = dht.DHT22(Pin(2))

# DIP switch (GP3–GP10)
dip_switches = [Pin(i, Pin.IN, Pin.PULL_UP) for i in range(3, 11)]

# Stepper motor pinleri
step_pins = [Pin(11, Pin.OUT), Pin(12, Pin.OUT), Pin(13, Pin.OUT), Pin(14, Pin.OUT)]

# Step sıralaması
step_seq = [
    [1, 0, 1, 0],
    [0, 1, 1, 0],
    [0, 1, 0, 1],
    [1, 0, 0, 1]
]

def read_switch():
    return 0 if dip_switches[0].value() == 0 else 1

def step_motor(direction):
    steps = step_seq if direction == 1 else step_seq[::-1]
    for _ in range(50):
        for step in steps:
            for pin, val in zip(step_pins, step):
                pin.value(val)
            time.sleep(0.01)

# Buffer oluştur (128x64)
buf = bytearray(128 * 64 // 8)
fbuf = framebuf.FrameBuffer(buf, 128, 64, framebuf.MONO_VLSB)

def draw_rotated_text(temp, hum):
    # Buffera yazı yaz
    fbuf.fill(0)
    fbuf.text( "Sicaklik: {:>2} " .format(int(temp)), 0, 0)

    fbuf.text("Nem     : {:>2}".format(int(hum)), 0, 12)


    # Buffer'ı 180 derece döndür
    rotated = bytearray(len(buf))
    for y in range(64):
        for x in range(128):
            bit = fbuf.pixel(x, y)
            new_x = 127 - x
            new_y = 63 - y
            i = new_x + (new_y // 8) * 128
            if bit:
                rotated[i] |= (1 << (new_y % 8))

    # OLED'e bastır
    oled.buffer = rotated
    oled.show()

while True:
    try:
        sensor.measure()
        temp = sensor.temperature()
        hum = sensor.humidity()

        draw_rotated_text(temp, hum)
        direction = read_switch()
        step_motor(direction)

        time.sleep(2)

    except Exception as e:
        print("HATA:", e)
        time.sleep(2)