# Import necessary modules
import machine
import time

# Define pins for PIR sensor, LED, and LDR specific to ESP32-C3-Mini
PIR_PIN = 7  # Adjust as per your ESP32-C3-Mini pin configuration
LED_PIN = 3  # Adjust as per your ESP32-C3-Mini pin configuration
LDR_PIN = 0  # Adjust as per your ESP32-C3-Mini pin configuration

# Initialize the PIR sensor, LED, and LDR
pir = machine.Pin(PIR_PIN, machine.Pin.IN)
led = machine.Pin(LED_PIN, machine.Pin.OUT)
ldr = machine.ADC(machine.Pin(LDR_PIN))
ldr.atten(machine.ADC.ATTN_11DB)  # Configure ADC for 0-3.3V range

SIMULATE = "OFF"

# Define a threshold for darkness (adjust based on your LDR readings)
LDR_THRESHOLD = 150

# Delay before turning off the LED after no motion (in seconds)
DELAY_TIME = 1

# Function to check if it's dark
def is_dark():
    print("LDR: " + str(ldr.read() > LDR_THRESHOLD))
    return ldr.read() > LDR_THRESHOLD

# Main loop
try:
    while True:
        if pir.value() == 1:  # Motion detected
            print("PIR: true")
            if is_dark():
                led.value(1)  # Turn on LED
                SIMULATE = "ON"
            time.sleep(3)  # Small delay to prevent rapid toggling
        else:
            #print("-")
            time.sleep(DELAY_TIME)
            if pir.value() == 0:  # Recheck motion to avoid premature LED off
                led.value(0)  # Turn off LED
                SIMULATE = "OFF"
        
        print("LDR: " + str(ldr.read()) + " LED should be: " + SIMULATE)

except KeyboardInterrupt:
    # Cleanup on exit
    led.value(0)
    print("Exiting gracefully...")