from machine import Pin 
import time 
 
# Define button pins 
button_pins = [32, 33, 4]  # Example GPIO pins 
 
# Dictionary to store button states 
button_states = {pin: False for pin in button_pins} 
 
# Interrupt handler function 
def button_handler(pin): 
    global button_states 
    button_states[pin] = not button_states[pin] 
    print(f"Button on pin {pin} {'pressed' if button_states[pin] else 'released'}") 
 
# Initialize buttons and set up interrupts 
buttons = [] 
for pin in button_pins: 
    button = Pin(pin, Pin.IN, Pin.PULL_UP) 
    button.irq(trigger=Pin.IRQ_FALLING | Pin.IRQ_RISING, handler=lambda p: button_handler(p)) 
    buttons.append(button) 
 
# Main loop 
try: 
    while True: 
        time.sleep(1)  # Sleep to reduce CPU usage 
except KeyboardInterrupt: 
    print("Program stopped")