from machine import Pin, ADC, time_pulse_us
import time
import dht

# DHT22 (DATA → GP15)
dht_sensor = dht.DHT22(Pin(15))

# LDR (AO → GP26)
ldr = ADC(26)

# Ultrasonic (TRIG=GP9, ECHO=GP8)
trig = Pin(9, Pin.OUT)
echo = Pin(8, Pin.IN)

def get_distance():
    trig.low()
    time.sleep_us(2)
    trig.high()
    time.sleep_us(10)
    trig.low()

    duration = time_pulse_us(echo, 1)
    distance = duration * 0.0343 / 2
    return distance

while True:
    # DHT22
    dht_sensor.measure()
    temp = dht_sensor.temperature()
    hum = dht_sensor.humidity()

    # LDR
    light_value = ldr.read_u16()

    # Ultrasonic
    distance = get_distance()

    print(f"Temp: {temp}°C | Humidity: {hum}% | Light: {light_value} | Distance: {distance:.2f}cm")

    time.sleep(1)