from machine import Pin, ADC
import time

# Pin setup for LEDs
led1 = Pin(2, Pin.OUT)
led2 = Pin(3, Pin.OUT)
led3 = Pin(4, Pin.OUT)

# Pin setup for PIR sensors
pir1 = Pin(5, Pin.IN)
pir2 = Pin(6, Pin.IN)
pir3 = Pin(7, Pin.IN)

# LDR setup
ldr = ADC(Pin(26))  # LDR connected to GPIO 26 (ADC1)
ldr.width(ADC.WIDTH_12BIT)  # Set ADC resolution to 12 bits (0-4095)
ldr.atten(ADC.ATTN_0DB)  # No attenuation (0-3.3V)

# Threshold for the LDR to turn LEDs on
threshold = 1500

while True:
    # Read the LDR value (light level)
    ldr_value = ldr.read()

    # Read the PIR sensors (motion detection)
    motion1 = pir1.value()
    motion2 = pir2.value()
    motion3 = pir3.value()

    # Check if the LDR value exceeds threshold and any PIR sensor detects motion
    if ldr_value > threshold:
        if motion1:
            led1.on()  # Turn on LED1 if PIR1 detects motion
        else:
            led1.off()  # Turn off LED1 if no motion detected

        if motion2:
            led2.on()  # Turn on LED2 if PIR2 detects motion
        else:
            led2.off()  # Turn off LED2 if no motion detected

        if motion3:
            led3.on()  # Turn on LED3 if PIR3 detects motion
        else:
            led3.off()  # Turn off LED3 if no motion detected
    else:
        # If LDR value is below threshold, turn off all LEDs
        led1.off()
        led2.off()
        led3.off()

    time.sleep(0.1)  # Delay to avoid excessive CPU usage