from machine import Pin, ADC
import time
import dht

# Initialize pins
humidifier = Pin(2, Pin.OUT)  # Humidifier controlled by humidity
fan = Pin(18, Pin.OUT)  # Fan controlled by temperature
uv_lamp = Pin(12, Pin.OUT)  # UV lamp controlled by temperature
photo_led = Pin(27, Pin.OUT)  # LED controlled by photoresistor

# Initialize DHT22 sensor
dht22_sensor = dht.DHT22(Pin(14))

# Initialize photoresistor (using ADC pin 34)
photoresistor = ADC(Pin(34))
photoresistor.atten(ADC.ATTN_11DB)  # Configure to read the full range of values

# Define thresholds
fantemp_threshold = 25.0  # Temperature threshold for fan 
uvtemp_threshold = 20.0  # Temperature threshold for UV lamp
humidity_threshold = 40.0  # Humidity threshold for humidifier
adc_threshold = 2000  # Light level threshold for LED controlled by photoresistor

while True:
    # Read DHT22 sensor values
    dht22_sensor.measure()
    temperature = dht22_sensor.temperature()
    humidity = dht22_sensor.humidity()
    
    # Read photoresistor value
    adc_value = photoresistor.read()
    
    # Control humidifier based on humidity
    if humidity < humidity_threshold:
        humidifier.on()
    else:
        humidifier.off()
    
    # Control fan based on temperature
    if temperature < fantemp_threshold:
        fan.off()
    else:
        fan.on()
    
    # Control UV lamp based on temperature
    if temperature < uvtemp_threshold:
        uv_lamp.on()
    else:
        uv_lamp.off()
    
    # Control LED based on light level
    if adc_value > adc_threshold:
        photo_led.on()
    else:
        photo_led.off()
    
    # Print sensor values for debugging
    print("Temperature:", temperature, "C")
    print("Humidity:", humidity, "%")
    print("ADC Value :", adc_value)
    
    # Wait before the next measurement
    time.sleep(2)