DO                                                                ' pour toujours

    PORTB.2 = 0                                                  ' puissance off

       tempo(50)

     PORTB.0 = 1                                                       'sens 1

      PORTB.1 = 1

           tempo(50)

       PORTB.2 = 1                                                     'puissance on

           tempo(200)

       PORTB.2 = 0                                                       'puissance off