from machine import Pin, I2C
from time import sleep
import dht
from i2c_lcd import I2cLcd

# --- Sensor and LCD Setup ---

# Initialize DHT22 sensor on GPIO28
sensor = dht.DHT22(Pin(28))

# Initialize I2C for LCD (SDA = GP0, SCL = GP1)
i2c = I2C(0, scl=Pin(1), sda=Pin(0), freq=400000)

# LCD I2C address (use i2c.scan() to find if unknown)
I2C_ADDR = 0x27
lcd = I2cLcd(i2c, I2C_ADDR, 2, 16)

# --- Program Start ---

lcd.clear()
lcd.putstr("System Initializing")
sleep(2)

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

        # Print to serial
        print("Temperature: {:.1f} C  Humidity: {:.1f} %".format(temp, hum))

        # Display on LCD
        lcd.clear()
        lcd.putstr("Temp: {:.1f} C".format(temp))
        lcd.move_to(0, 1)
        lcd.putstr("Hum : {:.1f} %".format(hum))

    except Exception as e:
        print("Sensor Error:", e)
        lcd.clear()
        lcd.putstr("Sensor Error")
        lcd.move_to(0, 1)
        lcd.putstr(str(e)[:16])  # Print first 16 chars of error

    sleep(2)