import machine

import utime

import _thread

import os

import random

import playRandom # Import the sound playback module

#60000 kHz seems to create the most voltage

# Create PWM on GPIO 41

pwm = machine.PWM(machine.Pin(41))

pwm.freq(60000) # Set PWM frequency to 100 kHz (5µs high, 5µs low)

pwm.duty_u16(32767) # 50% duty cycle (range 0-65535, so 32767 is 50%)

# Set up the LED on GPIO 2

led = machine.Pin(2, machine.Pin.OUT)

led.value(0)

# Set up the beeper on GPIO 6

beep = machine.Pin(6, machine.Pin.OUT)

beep.value(0)

# Set up GPIO 15 as input (default pulled up, LOW when triggered)

trigger = machine.Pin(15, machine.Pin.IN)

#flag for radiation detection

radiation_detected = False

# Interrupt handler function

def handle_radiation(pin):

global radiation_detected

radiation_detected = True #set flag on detection

# Attach interrupt to GPIO15 (triggers on FALLING EDGE)

trigger.irq(trigger=machine.Pin.IRQ_FALLING, handler=handle_radiation)

# Keep the script running

while True:

if radiation_detected:

for _ in range(1): # Blink LED 5 times

led.value(1)

beep.value(0)

utime.sleep(1)

led.value(0)

beep.value(0)

utime.sleep(1)

led.value(1)

utime.sleep(1)

led.value(0)

utime.sleep(1)

#playRandom.play_random_sound() # Call function to play a random sound

#playRandom.play_specific_sound()

#playRandom.list_sd_files()

radiation_detected = False

utime.sleep(1) # Keep the script alive