diff --git a/inc/gpio.h b/inc/gpio.h
--- a/inc/gpio.h
+++ b/inc/gpio.h
@@ -4,11 +4,16 @@
 #include "stm32f3xx_hal.h"
 
 
-
+// Define FAULT LED
 #define LED_RED_Pin GPIO_PIN_5
 #define LED_RED_GPIO_Port GPIOA
 #define LED_RED LED_RED_GPIO_Port , LED_RED_Pin
 
+// Define Fuse Closed drive
+#define GATE_DRIVE_Pin GPIO_PIN_3
+#define GATE_DRIVE_GPIO_Port GPIOA
+#define GATE_DRIVE GATE_DRIVE_GPIO_Port , GATE_DRIVE_Pin
+
 
 void gpio_init(void);
 void gpio_led_blueblink(uint8_t num_blinks);