diff --git a/src/modules/px4iofirmware/px4io.h b/src/modules/px4iofirmware/px4io.h
index 0ca1819dbf..3d0a1d5452 100644
--- a/src/modules/px4iofirmware/px4io.h
+++ b/src/modules/px4iofirmware/px4io.h
@@ -159,7 +159,12 @@ extern output_limit_t pwm_limit;
 /*
  * GPIO handling.
  */
+/* HEX Cube Orange and Cube Yellow uses an inverted signal to control the IMU heater */
+#ifdef CONFIG_ARCH_BOARD_HEX_IO_V2
+#define LED_BLUE(_s)			px4_arch_gpiowrite(GPIO_LED1, (_s))
+#else
 #define LED_BLUE(_s)			px4_arch_gpiowrite(GPIO_LED1, !(_s))
+#endif
 #define LED_AMBER(_s)			px4_arch_gpiowrite(GPIO_LED2, !(_s))
 #define LED_SAFETY(_s)			px4_arch_gpiowrite(GPIO_LED3, !(_s))
 #define LED_RING(_s)			px4_arch_gpiowrite(GPIO_LED4, (_s))