print("Hello, ESP32!")

#####################################
###### IMPORT LIBRARIES
from machine import Pin
from time import sleep

#####################################
###### PIN CONFIGURATIONS
# Configure the LED and PIR motion sensor pins
pin_led = Pin(19, Pin.OUT)
pin_pir = Pin(23, Pin.IN)  # PIR sensor output connected to GPIO2

#####################################
###### SUBROUTINE FOR INTERRUPT #####
def interrupt_motion(pin):
    print('Motion detected:', pin)
    pin_led.on()
    sleep(5)
    pin_led.off()


# Interrupt trigger when motion is detected (rising edge)
pin_pir.irq(trigger=Pin.IRQ_RISING, handler=interrupt_motion)

#####################################
###### MAIN ROUTINE
def main():
    while True:
        # LED stays off unless motion is detected
        pin_led.off()
        sleep(10)

#####################################
###### EXECUTE MAIN ROUTINE
if __name__ == '__main__':
    main()