diff --git a/Software/src/devboard/hal/hw_3LB.h b/Software/src/devboard/hal/hw_3LB.h
index ded31420..7e564701 100644
--- a/Software/src/devboard/hal/hw_3LB.h
+++ b/Software/src/devboard/hal/hw_3LB.h
@@ -53,6 +53,10 @@
 #define PRECHARGE_PIN 25
 #define BMS_POWER 2
 
+// Automatic precharging
+#define HIA4V1_PIN 25
+#define INVERTER_DISCONNECT_CONTACTOR_PIN 32
+
 #define SECOND_POSITIVE_CONTACTOR_PIN 13
 #define SECOND_NEGATIVE_CONTACTOR_PIN 16
 #define SECOND_PRECHARGE_PIN 18
diff --git a/Software/src/devboard/hal/hw_devkit.h b/Software/src/devboard/hal/hw_devkit.h
index c16621b5..28107491 100644
--- a/Software/src/devboard/hal/hw_devkit.h
+++ b/Software/src/devboard/hal/hw_devkit.h
@@ -51,6 +51,11 @@ The pin layout below supports the following:
 #define NEGATIVE_CONTACTOR_PIN GPIO_NUM_16
 #define PRECHARGE_PIN GPIO_NUM_17
 
+// Automatic precharging
+#define HIA4V1_PIN GPIO_NUM_17
+#define INVERTER_DISCONNECT_CONTACTOR_PIN GPIO_NUM_5
+
+
 // SMA CAN contactor pins
 #define INVERTER_CONTACTOR_ENABLE_PIN GPIO_NUM_14