ESP32 Hardware Interrupts in micropython

main.py

import machine
import sys
import utime

# Error buffer for inside ISRs
import micropython
micropython.alloc_emergency_exception_buf(100)

class Run():
  def __init__(self):
    self.values = [ 125, 1000 ]
    self.iter = 0
    self.curr_val = self.values[self.iter & len(self.values)]
    self.incr_set_ref = self.incr_set
    self.repl_button = machine.Pin(0, machine.Pin.IN, machine.Pin.PULL_UP)
    self.led = machine.Pin(5, machine.Pin.OUT)
    self.repl_button.irq(trigger=machine.Pin.IRQ_RISING, handler=self.incr_handler)

  def incr_handler(self, p):
    print("Handling Pin ",p)
    micropython.schedule(self.incr_set_ref,0)
 
  def incr_set(self,v):
    print("Setting new iter")
    self.iter+=1
    self.curr_val = self.values[self.iter % len(self.values)]
    print('Iter: {}, curr_val: {}'.format(self.iter, self.curr_val))

  def run(self):
    while 1 != 0:
      self.led.value(1)
      print("On")
      utime.sleep_ms(self.curr_val)
      self.led.value(0)
      print("Off")
      utime.sleep_ms(self.curr_val)

    sys.exit(0)

Run().run()