Résultat attendu (Python) - exemple 1

from microbit import *
from lcd_i2c import LCD1602
from gas_gmxxx import GAS_GMXXX
from hm330x import HM330X

lcd = LCD1602()
multichannel_v2 = GAS_GMXXX(0x08)
hm3301 = HM330X()

while True:
  if button_a.is_pressed():
    lcd.clear()
    lcd.setCursor(0, 0)
    lcd.writeTxt('COV')
    lcd.setCursor(0, 1)
    lcd.writeTxt(str(multichannel_v2.calcVol(multichannel_v2.measure_VOC())))
  if button_b.is_pressed():
    lcd.clear()
    lcd.setCursor(0, 0)
    lcd.writeTxt('PM10')
    lcd.setCursor(0, 1)
    lcd.writeTxt(str(hm3301.getData(5)))