diff --git a/miosix/arch/cortexM7_stm32f7/stm32f767zi_skyward_death_stack_v4/interfaces-impl/bsp.cpp b/miosix/arch/cortexM7_stm32f7/stm32f767zi_skyward_death_stack_v4/interfaces-impl/bsp.cpp
index d3eabf94474f2d336173f437172d2b419d0ff906..0a9f8834e8107fc3f399bbacd51f2fd5a7e79b5e 100644
--- a/miosix/arch/cortexM7_stm32f7/stm32f767zi_skyward_death_stack_v4/interfaces-impl/bsp.cpp
+++ b/miosix/arch/cortexM7_stm32f7/stm32f767zi_skyward_death_stack_v4/interfaces-impl/bsp.cpp
@@ -346,6 +346,7 @@ void IRQbspInit()
     camera_enable::mode(Mode::OUTPUT);
     liftoff_detach::mode(Mode::INPUT);
     nosecone_detach::mode(Mode::INPUT);
+    exp_sense::mode(Mode::INPUT);
 
     using namespace actuators;
     buzzer::mode(Mode::ALTERNATE_PULL_DOWN);
diff --git a/miosix/arch/cortexM7_stm32f7/stm32f767zi_skyward_death_stack_v4/interfaces-impl/hwmapping.h b/miosix/arch/cortexM7_stm32f7/stm32f767zi_skyward_death_stack_v4/interfaces-impl/hwmapping.h
index 43f4722555949ba3a957718ceb76cd3247b5170a..461153228dae811665c4ee3eacb4a5f14893f2b6 100644
--- a/miosix/arch/cortexM7_stm32f7/stm32f767zi_skyward_death_stack_v4/interfaces-impl/hwmapping.h
+++ b/miosix/arch/cortexM7_stm32f7/stm32f767zi_skyward_death_stack_v4/interfaces-impl/hwmapping.h
@@ -219,6 +219,7 @@ using status_led      = Gpio<GPIOA_BASE, 14>;
 using camera_enable   = Gpio<GPIOA_BASE, 12>;
 using liftoff_detach  = Gpio<GPIOA_BASE, 11>;
 using nosecone_detach = Gpio<GPIOA_BASE, 4>;
+using exp_sense       = Gpio<GPIOG_BASE, 6>;
 
 }  // namespace gpios