MicroPython动手做（15）——掌控板之AB按键

eagler8

eagler8

11、A、B键控制图片转换显示

[mw_shl_code=arduino,true]#MicroPython动手做（15）——掌控板之AB按键
#A、B键控制图片转换显示

from mpython import *
import music

def callback_button_a_pressed():
  oled.fill(0)
  bmp_wZZv = bytearray([0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfb,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xe3,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x89,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x19,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x39,0xff,0xff,0xff,0xff,0xff,0xff,0xf8,0x0,0x3f,0xff,0xff,0xff,0xff,0xff,0xfe,0x79,0xff,0xff,0xff,0xff,0xff,0xff,0xe0,0x1a,0xf,0xff,0xff,0xff,0xff,0xff,0xfe,0xf9,0xff,0xff,0xff,0x3f,0xff,0xff,0x83,0xff,0xe0,0x0,0x0,0x0,0x7f,0xff,0xfc,0xf9,0xff,0xff,0xfc,0xf,0xff,0xfe,0x0,0x7f,0xf0,0x0,0x0,0x0,0x3f,0xff,0xfc,0xf9,0xff,0xf8,0x0,0xe7,0xff,0xfc,0x7e,0xf,0xfc,0xff,0xf3,0xff,0xbf,0xff,0xfc,0xf9,0xff,0xe0,0x0,0x1,0xff,0xf9,0xff,0xc7,0xfe,0x7f,0xf3,0xff,0x9f,0xff,0xfc,0xf9,0xff,0x80,0x0,0x0,0x3,0xf3,0xff,0xc3,0xff,0x3f,0xf3,0xff,0x80,0x3f,0xfe,0xf9,0xfe,0x0,0x7,0xff,0xc0,0x73,0xff,0xc1,0xff,0x9f,0xf3,0xff,0x80,0x0,0x7e,0xf9,0xe0,0x0,0xf,0xff,0xff,0x7,0xf0,0x0,0xff,0x8f,0xf3,0xff,0x80,0x0,0x0,0xf9,0xf0,0x0,0xf,0xff,0xff,0xc7,0x80,0x30,0x7e,0xf,0xf3,0xff,0x80,0x0,0x0,0xf9,0x90,0x0,0x1f,0xbf,0xff,0xf3,0x1f,0x38,0x60,0x3f,0xf7,0xff,0x80,0x0,0x0,0xf9,0xc0,0x0,0x1f,0x3f,0xff,0xf8,0x7f,0x80,0x3,0xbf,0xff,0xff,0x80,0x0,0x0,0xf9,0xc0,0x0,0x1e,0x41,0xff,0xf8,0xff,0xc2,0x1f,0x9f,0xff,0xff,0x80,0x0,0x0,0xf9,0xe0,0x0,0x1e,0x40,0xff,0xfc,0xff,0xff,0x9f,0x9f,0xff,0xff,0x80,0x0,0x0,0xf9,0xf0,0x0,0x1c,0xb0,0xff,0xfc,0xfc,0xff,0xcf,0x9f,0xff,0xff,0x80,0x0,0x0,0xf9,0xf0,0x0,0x1c,0x90,0xff,0xfe,0x40,0x7f,0xcf,0x9f,0xff,0xff,0x80,0x0,0x0,0xf9,0xf0,0x0,0x1c,0x80,0xfd,0xfe,0x6,0x7f,0xcf,0x9f,0xff,0xff,0x80,0x0,0x0,0x1,0xe0,0x0,0x1c,0xc1,0xfc,0xfe,0x3f,0x3f,0xcf,0x9f,0xff,0xff,0x80,0x0,0x1,0x7,0xe0,0x0,0x1f,0xe3,0xfe,0x7f,0x1f,0x38,0xcf,0x9f,0xff,0xff,0x80,0x0,0xff,0xff,0xe0,0x0,0x1f,0xff,0xff,0x7f,0x3,0x80,0x4f,0x9f,0xff,0xff,0x81,0xff,0xff,0xff,0xe0,0x0,0x1f,0xff,0xff,0x3f,0x21,0x9f,0xf,0x9f,0xff,0xff,0xbf,0xff,0xff,0xff,0xe0,0x0,0x1f,0xff,0xff,0x3f,0x0,0x7f,0x9f,0x9f,0xff,0xff,0xbf,0xff,0xff,0xff,0xe0,0x0,0xf,0xff,0xff,0x3f,0x10,0x3f,0xdf,0x9f,0xff,0xff,0xbf,0xff,0xff,0xff,0xe0,0x0,0x1f,0xff,0xff,0xbf,0x39,0x0,0x1f,0x80,0x0,0x0,0x3f,0xff,0xff,0xff,0xe0,0x0,0x1f,0xff,0xff,0xbf,0x3b,0x80,0x1f,0x80,0x0,0x0,0x3f,0xff,0xff,0xff,0xe0,0x0,0x1f,0xff,0xff,0x3f,0x30,0x3f,0x9f,0x1f,0xff,0xff,0xbf,0xff,0xff,0xff,0xe0,0x0,0x1f,0xff,0xff,0x3f,0x0,0x7f,0x9f,0x1f,0xff,0xff,0xbf,0xff,0xff,0xff,0xe0,0x0,0x3f,0xff,0xff,0x3f,0x1,0x9f,0x1c,0x1f,0xff,0xff,0xbf,0xff,0xff,0xff,0xe0,0x0,0x3f,0xff,0xfe,0x7f,0x3,0x80,0x38,0x9f,0xff,0xff,0x9f,0xff,0xff,0xff,0xe0,0x0,0x7f,0xe3,0xfe,0x7f,0x1f,0x30,0xb1,0xdf,0xff,0xff,0x80,0x1f,0xff,0xff,0xf0,0x0,0x3c,0xc1,0xfc,0xff,0x3f,0x3f,0xb3,0xdf,0xff,0xff,0x80,0x0,0x1f,0xff,0xf0,0x0,0x3c,0xb0,0xfd,0xfe,0x6,0x7f,0x87,0xdf,0xff,0xff,0x80,0x0,0x0,0x1,0xf0,0x0,0x1c,0xb0,0xff,0xfe,0x40,0x73,0x87,0xdf,0xff,0xff,0x80,0x0,0x0,0x21,0xf0,0x0,0x1e,0x80,0xff,0xfe,0xfc,0xe0,0xcf,0x9f,0xff,0xff,0x80,0x0,0x0,0xf9,0xf8,0x0,0x1e,0x40,0xff,0xfc,0xff,0xcc,0xf,0x9f,0xff,0xff,0x80,0x0,0x0,0xf9,0xf8,0x0,0x1e,0x61,0xff,0xf8,0x1f,0xcc,0xf,0x9f,0xff,0xff,0x80,0x0,0x0,0xf9,0xfc,0x0,0x1f,0x3f,0xff,0xf9,0x0,0x0,0x60,0x9f,0xff,0xff,0x80,0x0,0x0,0xf9,0xfc,0x0,0x1f,0xff,0xff,0xf3,0xf0,0x70,0x78,0xf,0xf3,0xff,0x80,0x0,0x0,0xf9,0xfe,0x0,0x1f,0xff,0xff,0xc7,0xff,0xfc,0xff,0x8f,0xf3,0xff,0x80,0x0,0x0,0xf9,0xff,0x0,0x1f,0xff,0xfe,0x7,0xff,0xf9,0xff,0x9f,0xf3,0xff,0x80,0x0,0x0,0xf9,0xff,0x80,0xf,0xff,0xc0,0x73,0xff,0xf1,0xff,0x3f,0xf3,0xff,0x80,0x0,0x6,0x79,0xff,0xc0,0x0,0x0,0x3,0xf9,0xff,0xe7,0xfe,0x3f,0xf3,0xff,0x80,0xf,0xfe,0xf9,0xff,0xe0,0x0,0x3,0xff,0xf8,0xff,0xf,0xfc,0x7f,0xf3,0xff,0x9f,0xff,0xfc,0xf9,0xff,0xf8,0x0,0x67,0xff,0xfe,0x0,0x3f,0xf8,0x0,0x0,0x0,0x3f,0xff,0xfc,0xf9,0xff,0xff,0xfe,0xf,0xff,0xff,0x3,0xff,0xe0,0x0,0x0,0x0,0x3f,0xff,0xfc,0xf9,0xff,0xff,0xff,0xbf,0xff,0xff,0xc1,0xff,0x87,0xff,0xff,0xff,0xff,0xff,0xfc,0xf9,0xff,0xff,0xff,0xff,0xff,0xff,0xf0,0x0,0x1f,0xff,0xff,0xff,0xff,0xff,0xfc,0xf9,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xe7,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xf9,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0x79,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x39,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x99,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xc1,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xe3,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfb,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff])
  oled.Bitmap(0, 0, bmp_wZZv, 128, 64, 1)
  oled.show()


def callback_button_b_pressed():
  oled.fill(0)
  bmp_h61P = bytearray([0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xdf,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xc7,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x83,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x99,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x9c,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x9e,0x7f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x9f,0x7f,0xff,0xff,0xff,0xff,0xff,0xff,0xe7,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x9f,0x3f,0xff,0xff,0xff,0xff,0xff,0xf8,0x0,0xf,0xff,0xff,0xff,0xff,0xff,0xff,0x9f,0x3f,0xff,0xff,0xff,0xff,0xff,0xe1,0xff,0x83,0xff,0xff,0xfd,0xff,0xff,0xff,0x9f,0x3f,0xff,0xfc,0x0,0x0,0x0,0x7,0xff,0xc0,0xff,0xff,0xf0,0x7f,0xff,0xff,0x9f,0x3f,0xff,0xfc,0x0,0x0,0x0,0x1f,0xfc,0x0,0x7f,0xff,0xe6,0x0,0x1f,0xff,0x9f,0x3f,0xff,0xf9,0xff,0xcf,0xfe,0x3f,0xf0,0xff,0x1f,0xff,0xc0,0x0,0x7,0xff,0x9f,0x7f,0xf0,0x1,0xff,0xcf,0xfc,0x7f,0xe7,0xff,0x9f,0xc0,0x0,0x0,0x3,0xff,0x9e,0x60,0x0,0x1,0xff,0xcf,0xfc,0xff,0x8f,0xff,0xce,0x3,0xff,0xf0,0x1,0xff,0x9f,0x0,0x0,0x1,0xff,0xcf,0xf9,0xff,0x9f,0xff,0xe0,0x7f,0xff,0xf8,0x0,0xff,0x9f,0x0,0x0,0x1,0xff,0xcf,0xf1,0xff,0x3f,0xff,0xe3,0xff,0xff,0xf8,0x0,0x7f,0x9f,0x0,0x0,0x1,0xff,0xcf,0xf0,0x1e,0xe,0xf,0xcf,0xff,0xff,0xf8,0x0,0x3f,0x9f,0x0,0x0,0x1,0xff,0xff,0xf9,0x6,0x0,0x0,0x9f,0xff,0xfc,0xf8,0x0,0x3f,0x9f,0x0,0x0,0x1,0xff,0xff,0xf9,0xf0,0x33,0xf8,0x1f,0xff,0x86,0x78,0x0,0x1f,0x9f,0x0,0x0,0x1,0xff,0xff,0xf9,0xf0,0x33,0xff,0x3f,0xff,0x2,0x78,0x0,0x1f,0x9f,0x0,0x0,0x1,0xff,0xff,0xf9,0xf3,0x7,0x3f,0x7f,0xff,0x1,0x78,0x0,0xf,0x84,0x0,0x0,0x1,0xff,0xff,0xfb,0xe1,0xce,0x2,0x7f,0xff,0xd,0x38,0x0,0xf,0x80,0x0,0x0,0x1,0xff,0xff,0xfb,0xe1,0xfe,0x60,0x7f,0xbf,0xd,0x3c,0x0,0xf,0xff,0xf8,0x0,0x1,0xff,0xff,0xfb,0xcd,0xfc,0xfc,0xff,0x3f,0x83,0x3c,0x0,0xf,0xff,0xff,0xf8,0x1,0xff,0xff,0xfb,0x8d,0xc,0xf8,0xfe,0x7f,0xc7,0xfe,0x0,0x7,0xff,0xff,0xff,0xf9,0xff,0xff,0xf9,0x1c,0x1,0xc0,0xfe,0x7f,0xff,0xfc,0x0,0x7,0xff,0xff,0xff,0xfd,0xff,0xff,0xf8,0x38,0xf9,0x80,0xfc,0xff,0xff,0xfc,0x0,0x7,0xff,0xff,0xff,0xfd,0xff,0xff,0xf8,0xf9,0xfe,0x0,0xfc,0xff,0xff,0xf8,0x0,0x7,0xff,0xff,0xff,0xfd,0xff,0xff,0xf8,0xf9,0xfc,0xc,0xfc,0xff,0xff,0xf8,0x0,0x7,0xff,0xff,0xff,0xfc,0x0,0x0,0x1,0xf8,0x1,0xdc,0xfd,0xff,0xff,0xf8,0x0,0x7,0xff,0xff,0xff,0xfc,0x0,0x0,0x1,0xf8,0x0,0x9c,0xfd,0xff,0xff,0xf8,0x0,0x7,0xff,0xff,0xff,0xfd,0xff,0xff,0xf9,0xfb,0xfc,0x8,0xfc,0xff,0xff,0xf0,0x0,0x7,0xff,0xff,0xff,0xfd,0xff,0xff,0xf9,0xf9,0xfe,0x0,0xfc,0xff,0xff,0xf8,0x0,0x7,0xff,0xff,0xff,0xfd,0xff,0xff,0xf9,0xf0,0xf9,0x84,0xfc,0xff,0xff,0xf8,0x0,0x7,0xff,0xff,0xff,0x81,0xff,0xff,0xf9,0xf2,0x1,0xc0,0xfe,0xff,0xff,0xf8,0x0,0x7,0xff,0xff,0x0,0x1,0xff,0xff,0xf9,0xf3,0x1c,0xf8,0xfe,0x7f,0xc7,0xf8,0x0,0x7,0xe0,0x80,0x0,0x1,0xff,0xff,0xf9,0xf3,0xfc,0xfc,0x7f,0x3f,0x83,0x38,0x0,0x7,0x80,0x0,0x0,0x1,0xff,0xff,0xf9,0xf3,0xfe,0x60,0x7f,0xbf,0x1,0x38,0x0,0xf,0x9f,0x0,0x0,0x1,0xff,0xff,0xf9,0xf3,0xfe,0x2,0x7f,0xff,0x9,0x38,0x0,0xf,0x9f,0x0,0x0,0x1,0xff,0xff,0xf9,0xf3,0xff,0x3f,0x3f,0xff,0xd,0x38,0x0,0xf,0x9f,0x0,0x0,0x1,0xff,0xff,0xf9,0xf9,0xff,0xff,0x3f,0xff,0x2,0x78,0x0,0x7,0x9f,0x0,0x0,0x1,0xff,0xff,0xf9,0xf8,0x43,0xff,0x1f,0xff,0x82,0x78,0x0,0x3,0x9f,0x0,0x0,0x1,0xff,0xff,0xfd,0xc0,0x1,0xfe,0x1f,0xff,0xfc,0xf8,0x0,0x3,0x9f,0x0,0x0,0x1,0xff,0xef,0xfc,0x6,0x1c,0xf8,0xcf,0xff,0xfd,0xf8,0x0,0x9,0x9f,0x0,0x0,0x1,0xff,0xcf,0xf0,0x7e,0xc,0x1,0xe3,0xff,0xff,0xf0,0x0,0xf,0x9f,0x0,0x0,0x1,0xff,0xcf,0xf1,0xff,0x0,0xf,0xe0,0xff,0xff,0xf0,0x0,0x7,0x9f,0x7e,0x0,0x1,0xff,0xcf,0xf9,0xff,0x83,0xff,0xce,0x3,0xff,0xe0,0x0,0x7f,0x9f,0x7f,0xfc,0x1,0xff,0xcf,0xfc,0xff,0xc3,0xff,0xcf,0xc0,0x0,0x0,0x1,0xff,0x9f,0x3f,0xff,0xf9,0xff,0xcf,0xfe,0x7f,0xe3,0xff,0x9f,0xff,0x80,0x0,0x7,0xff,0x9f,0x3f,0xff,0xfd,0xff,0xcf,0xff,0x3f,0xf0,0x7e,0x3f,0xff,0xe7,0x0,0x1f,0xff,0x9f,0x3f,0xff,0xfc,0x0,0x0,0x0,0xf,0xfe,0x0,0x7f,0xff,0xf0,0x3f,0xff,0xff,0x9f,0x3f,0xff,0xfe,0x0,0x0,0x0,0x7,0xff,0xc1,0xff,0xff,0xfc,0xff,0xff,0xff,0x9f,0x7f,0xff,0xff,0xff,0xff,0xff,0xf0,0x58,0x7,0xff,0xff,0xff,0xff,0xff,0xff,0x9e,0x7f,0xff,0xff,0xff,0xff,0xff,0xfc,0x0,0x1f,0xff,0xff,0xff,0xff,0xff,0xff,0x9c,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x98,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x91,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xc7,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xdf,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff])
  oled.Bitmap(0, 0, bmp_h61P, 128, 64, 1)
  oled.show()


def on_button_a_pressed():
  while True:
    if button_a.value() == 0:
      yield callback_button_a_pressed()
    else:
      yield

def on_button_b_pressed():
  while True:
    if button_b.value() == 0:
      yield callback_button_b_pressed()
    else:
      yield

func_button_a_pressed = on_button_a_pressed()
func_button_b_pressed = on_button_b_pressed()
while True:
  next(func_button_a_pressed)
  next(func_button_b_pressed)[/mw_shl_code]

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Mind+ 图形编程

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11、AB按键切换声光值与三轴数值

#MicroPython动手做（15）——掌控板之AB按键
#AB按键切换声光值与三轴数值

[mw_shl_code=arduino,true]#MicroPython动手做（15）——掌控板之AB按键
#AB按键切换显示声光值与三轴数值

from mpython import *
import time

def on_button_a_down(_):
    global sensor, switch
    time.sleep_ms(10)
    if button_a.value() == 1: return
    switch = switch + -1
    if switch < 0:
        switch = 2

def on_button_b_down(_):
    global sensor, switch
    time.sleep_ms(10)
    if button_b.value() == 1: return
    switch = switch + 1
    if switch > 2:
        switch = 0

button_a.irq(trigger=Pin.IRQ_FALLING, handler=on_button_a_down)

button_b.irq(trigger=Pin.IRQ_FALLING, handler=on_button_b_down)


switch = 0
oled.fill(0)
oled.DispChar("上一个", 0, 0, 1)
oled.DispChar("下一个", 91, 0, 1)
while True:
    oled.fill_rect(0, 16, 128, 48, 0)
    if switch == 1:
        oled.DispChar((str("声音值：") + str(sound.read())), 30, 28, 1)
    elif switch == 2:
        oled.DispChar((str(" 光线值：") + str(light.read())), 25, 28, 1)
    else:
        oled.DispChar((str("X 轴：") + str(accelerometer.get_x())), 15, 15, 1)
        oled.DispChar((str("Y 轴：") + str(accelerometer.get_y())), 15, 30, 1)
        oled.DispChar((str("Z 轴：") + str(accelerometer.get_z())), 15, 45, 1)
    oled.show()[/mw_shl_code]

eagler8

mPython X 图形编程

eagler8

eagler8

eagler8

eagler8

12、AB按键秒表计时器

秒表主要是用来统计秒数的。它有一般有两个按键。A键和B键。
       第一次按下A键时，开始计时。
       第二次按下A键时，暂停计时。
       再按下A键时，继续上一步暂停的计时。
       按下B键，归零。

#MicroPython动手做（15）——掌控板之AB按键
#AB按键秒表计时器


[mw_shl_code=arduino,true]#MicroPython动手做（15）——掌控板之AB按键
#AB按键秒表计时器from mpython import *

import framebuf

import font.digiface_44

import time

from machine import Timer

def timer1_tick(_):
    global aaa, ttt
    ttt = ttt + 1
    oled.fill(0)
    display_font(font.digiface_44, (''.join([str(x) for x in [ttt // 60, ':', ttt % 60]])), 2, 8, False, 2)
    oled.show()

tim1 = Timer(1)

def on_button_a_down(_):
    global aaa, ttt
    time.sleep_ms(10)
    if button_a.value() == 1: return
    if aaa == 1:
        aaa = 0
        tim1.init(period=1000, mode=Timer.PERIODIC, callback=timer1_tick)
    else:
        aaa = 1
        tim1.deinit()

def on_button_b_down(_):
    global aaa, ttt
    time.sleep_ms(10)
    if button_b.value() == 1: return
    ttt = 0
    oled.fill(0)
    display_font(font.digiface_44, '00:00', 2, 8, False, 2)
    oled.show()
    aaa = 1
    tim1.deinit()

def display_font(_font, _str, _x, _y, _wrap, _z=0):
    _start = _x
    for _c in _str:
        _d = _font.get_ch(_c)
        if _wrap and _x > 128 - _d[2]: _x = _start; _y += _d[1]
        if _c == '1' and _z > 0: oled.fill_rect(_x, _y, _d[2], _d[1], 0)
        oled.blit(framebuf.FrameBuffer(bytearray(_d[0]), _d[2], _d[1],
        framebuf.MONO_HLSB), (_x+int(_d[2]/_z)) if _c=='1' and _z>0 else _x, _y)
        _x += _d[2]

button_a.irq(trigger=Pin.IRQ_FALLING, handler=on_button_a_down)

button_b.irq(trigger=Pin.IRQ_FALLING, handler=on_button_b_down)
oled.fill(0)
display_font(font.digiface_44, '00:00', 2, 8, False, 2)
oled.show()
ttt = 0
aaa = 1[/mw_shl_code]