diff options
Diffstat (limited to 'shared-bindings/microcontroller')
| -rw-r--r-- | shared-bindings/microcontroller/Pin.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/shared-bindings/microcontroller/Pin.c b/shared-bindings/microcontroller/Pin.c index d564d6d10..6ef219dfb 100644 --- a/shared-bindings/microcontroller/Pin.c +++ b/shared-bindings/microcontroller/Pin.c @@ -55,7 +55,7 @@ void assert_pin(mp_obj_t obj, bool none_ok) { } void assert_pin_free(const mcu_pin_obj_t* pin) { - if (pin != NULL && !common_hal_mcu_pin_is_free(pin)) { + if (pin != NULL && pin != MP_OBJ_TO_PTR(mp_const_none) && !common_hal_mcu_pin_is_free(pin)) { nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "Pin %q in use", pin->name)); } } |