from machine import Pin, I2C
import time
import dht
import i2c_lcd  # Assuming you have i2c_lcd.py and lcd_api.py libraries

# Initialize I2C on GP0 and GP1 (SDA, SCL)
i2c = I2C(0, scl=Pin(1), sda=Pin(0), freq=400000)  # Adjust I2C pins and frequency as needed

# Initialize the LCD screen
lcd = i2c_lcd.I2cLcd(i2c, 0x27, 2, 16)  # (I2C, address, rows, columns)

# Initialize the DHT sensor on GPIO pin 15
sensor = dht.DHT22(Pin(15))  # Change to DHT11 if using that sensor

# Function to read temperature and humidity and display it on LCD
def display_temp_humidity():
    try:
        # Read sensor data
        sensor.measure()  # Trigger the sensor to measure temperature and humidity
        temp = sensor.temperature()  # Temperature in Celsius
        humidity = sensor.humidity()  # Humidity in percentage
        
        # Clear the LCD
        lcd.clear()

        # Display temperature and humidity on the LCD
        lcd.putstr("Temp: {}C".format(temp))
        lcd.move_to(0, 1)  # Move to the second line
        lcd.putstr("Humidity: {}%".format(humidity))
    
    except Exception as e:
        lcd.clear()
        lcd.putstr("Sensor Error!")

# Main loop to keep updating the display
while True:
    display_temp_humidity()
    time.sleep(2)  # Update every 2 seconds