import machine
import time

# Initialize components
pir_sensor = machine.Pin(14, machine.Pin.IN)  # PIR on GPIO 14
ldr = machine.ADC(machine.Pin(34))  # LDR on GPIO 34 (Analog)
ldr.atten(machine.ADC.ATTN_11DB)  # Full-range voltage for ESP32
relay = machine.Pin(13, machine.Pin.OUT)  # Relay control on GPIO 13
button = machine.Pin(12, machine.Pin.IN, machine.Pin.PULL_UP)  # Button on GPIO 12

# Thresholds
light_threshold = 2000  # Adjust for your lighting conditions

# Initial states
light_on = False

# Function to turn on the light
def turn_on_light():
    global light_on
    relay.on()  # Activate the relay to turn the light on
    light_on = True
    print("Light ON")

# Function to turn off the light
def turn_off_light():
    global light_on
    relay.off()  # Deactivate the relay to turn the light off
    light_on = False
    print("Light OFF")

# Main loop
while True:
    # Read the LDR value (light level)
    light_level = ldr.read()
    print("Light Level:", light_level)
    
    # Detect motion
    if pir_sensor.value() == 1 and light_level < light_threshold:
        if not light_on:
            turn_on_light()  # Turn on the light if motion is detected and it's dark
    else:
        if light_on:
            turn_off_light()  # Turn off the light if no motion or enough ambient light
    
    # Manual override using the push button
    if button.value() == 0:  # Button pressed
        if light_on:
            turn_off_light()  # Manually turn off the light
        else:
            turn_on_light()  # Manually turn on the light
        time.sleep(0.5)  # Debounce delay for the button

    time.sleep(0.1)  # Short delay for loop