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

# Initialize DHT22 sensor
dht_sensor = dht.DHT22(machine.Pin(5))  # GPIO 5 for DHT22

# Initialize HC-SR04 sensor pins
trigger = machine.Pin(21, machine.Pin.OUT)  # GPIO 21 for trigger
echo = machine.Pin(19, machine.Pin.IN)      # GPIO 19 for echo

# Function to get distance from HC-SR04
def get_distance():
    trigger.value(0)
    time.sleep_us(2)
    trigger.value(1)
    time.sleep_us(10)
    trigger.value(0)

    pulse_time = machine.time_pulse_us(echo, 1, 30000)  # 30ms timeout for 5m range

    distance_cm = (pulse_time * 0.0343) / 2
    return distance_cm

# Initialize I2C for LCD and create LCD object
i2c = I2C(scl=Pin(22), sda=Pin(21))  # GPIO 22, GPIO 21 for I2C
lcd = I2cLcd(i2c, 0x27, 2, 16)  # Change 0x27 to your LCD address

while True:
    # Read temperature and humidity from DHT22
    dht_sensor.measure()
    temp_c = dht_sensor.temperature()
    humidity = dht_sensor.humidity()

    # Read distance from HC-SR04
    distance = get_distance()

    # Display sensor data on LCD
    lcd.clear()
    lcd.putstr("Temp: {}C\n".format(temp_c))
    lcd.putstr("Humidity: {}%\n".format(humidity))
    lcd.putstr("Distance: {}cm".format(distance))

    time.sleep(5)  # Adjust the interval as needed