diff --git a/Core/Src/stm32f4xx_it.c b/Core/Src/stm32f4xx_it.c
index cad61b9..106db94 100644
--- a/Core/Src/stm32f4xx_it.c
+++ b/Core/Src/stm32f4xx_it.c
@@ -207,7 +207,7 @@ void EXTI0_IRQHandler(void)
 
   change *= -1;
 
-  for (int i = 0; i < 200000; i++) {asm("nop");}
+  for (int i = 0; i < 400000; i++) {asm("nop");}
   /* USER CODE END EXTI0_IRQn 0 */
   HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_0);
   /* USER CODE BEGIN EXTI0_IRQn 1 */