diff --git a/ports/stm32/powerctrl.c b/ports/stm32/powerctrl.c
index 775514922..9d3f374f9 100644
--- a/ports/stm32/powerctrl.c
+++ b/ports/stm32/powerctrl.c
@@ -827,12 +827,20 @@ void powerctrl_enter_stop_mode(void) {
     powerctrl_low_power_prep_wb55();
     #endif
 
+    #if defined(MICROPY_BOARD_PRE_STOP)
+    MICROPY_BOARD_PRE_STOP
+    #endif
+
     #if defined(STM32F7)
     HAL_PWR_EnterSTOPMode((PWR_CR1_LPDS | PWR_CR1_LPUDS | PWR_CR1_FPDS | PWR_CR1_UDEN), PWR_STOPENTRY_WFI);
     #else
     HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
     #endif
 
+    #if defined(MICROPY_BOARD_POST_STOP)
+    MICROPY_BOARD_POST_STOP
+    #endif
+
     // reconfigure the system clock after waking up
 
     #if defined(STM32F0)