@@ -436,7 +436,7 @@ STATIC void pin_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t
436436 uint32_t strength = pin_get_strenght (self );
437437
438438 // pin name
439- mp_printf (print , "<Pin.cpu.%s , af=%u" , qstr_str ( self -> name ) , af );
439+ mp_printf (print , "<Pin.cpu.%q , af=%u" , self -> name , af );
440440
441441 if (af == PIN_MODE_0 ) {
442442 // IO mode
@@ -447,7 +447,7 @@ STATIC void pin_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t
447447 } else {
448448 mode_qst = MP_QSTR_OUT ;
449449 }
450- mp_printf (print , ", mode=Pin.%s " , qstr_str ( mode_qst ) );
450+ mp_printf (print , ", mode=Pin.%q " , mode_qst );
451451 }
452452
453453 // pin type
@@ -465,7 +465,7 @@ STATIC void pin_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t
465465 } else {
466466 type_qst = MP_QSTR_OD_PD ;
467467 }
468- mp_printf (print , ", pull=Pin.%s " , qstr_str ( type_qst ) );
468+ mp_printf (print , ", pull=Pin.%q " , type_qst );
469469
470470 // Strength
471471 qstr str_qst ;
@@ -476,7 +476,7 @@ STATIC void pin_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t
476476 } else {
477477 str_qst = MP_QSTR_S6MA ;
478478 }
479- mp_printf (print , ", strength=Pin.%s >" , qstr_str ( str_qst ) );
479+ mp_printf (print , ", strength=Pin.%q >" , str_qst );
480480}
481481
482482/// \classmethod \constructor(id, ...)
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