import dht
import machine
import utime

# Pin configurations
DHT_PIN = 4  # Choose the appropriate GPIO pin for DHT22
LDR_PIN = 34 # Choose the appropriate ADC pin for LDR
LED_PIN = 27  # Choose a GPIO pin for the LED

# Initialize DHT22 sensor
dht_sensor = dht.DHT22(machine.Pin(DHT_PIN))
# Initialize ADC for LDR
adc = machine.ADC(machine.Pin(LDR_PIN))
adc.atten(machine.ADC.ATTN_11DB)  # Set attenuation for proper voltage range (adjust if needed)
LDR_THRESHOLD = 2000 
# Initialize LED pin
led = machine.Pin(LED_PIN, machine.Pin.OUT)

# Initialize RTC
rtc = machine.RTC()
i2c = machine.I2C(sda=machine.Pin(21), scl=machine.Pin(22))

# RTC address (7-bit address)
rtc_address = 0x68

def read_rtc():
    i2c.writeto(rtc_address, bytes([0x00]))  # Set the register pointer to 0x00 (seconds)
    raw_data = i2c.readfrom(rtc_address, 7)  # Read 7 bytes (seconds, minutes, hours, day, date, month, year)
    
    seconds = raw_data[0]
    minutes = raw_data[1]
    hours = raw_data[2]
    day = raw_data[3]
    date = raw_data[4]
    month = raw_data[5]
    year = raw_data[6]
    
    return seconds, minutes, hours, day, date, month, year

def read_dht22():
    dht_sensor.measure()
    temperature = dht_sensor.temperature()
    humidity = dht_sensor.humidity()
    return temperature, humidity

def read_ldr():
    ldr_value = adc.read()
    return ldr_value

while True:
    temperature, humidity = read_dht22()
    ldr_value = read_ldr()
    current_time = rtc.datetime()  # Get current date and time from RTC
    
    print("Date and Time: {}/{}/{} {}:{}:{}".format(
        current_time[0], current_time[1], current_time[2],
        current_time[3], current_time[4], current_time[5]
    ))
    print("Temperature:", temperature)
    print("Humidity:", humidity)
    print("LDR Value:", ldr_value)
    if ldr_value > LDR_THRESHOLD:
        led.on()
        print("LED ON")
    else:
        led.off()
        print("LED OFF")

    seconds, minutes, hours, day, date, month, year = read_rtc()
    print("Time: {:02d}:{:02d}:{:02d}".format(hours, minutes, seconds))
    print("Date: {}/{}/{}".format(date, month, year))

    utime.sleep(1)
    print("========================")
    utime.sleep(1)  # Sleep for 1 second before taking the next reading
    # You can add more logic here to do something with the sensor readings