from machine import Pin, ADC
import time

#LDR pin configuration
ldr_pin = ADC(Pin(34))
ldr_pin.atten(ADC.ATTN_11DB) # Set the attenuation to 11dB
ldr_threshold = 2000 # Set the LDR threshold

#PIR pin configuration
pir_pin = Pin(32, Pin.IN) # PIR motion sensor is connected to GPIO 32
led_pin = Pin(23, Pin.OUT)

while True:
    # Read the LDR sensor value
    ldr_value = ldr_pin.read()
    
   # Check if the LDR value is above the threshold
    if ldr_value > ldr_threshold:
       # If the LDR value is above the threshold, start PIR detection
        pir_detected = pir_pin.value()
        if pir_detected:
            print("Motion detected!")
            led_pin.value(1)
            time.sleep(1) # Wait for 1 second to avoid multiple detections
    else:
         # If the LDR value is below the threshold, stop PIR detection
        print("LDR value is below the threshold. PIR detection stopped.")
        time.sleep(1) # Wait for 1 second before checking again