diff --git a/Core/Src/slave_monitoring.c b/Core/Src/slave_monitoring.c
index 3ce9f11..c59012b 100644
--- a/Core/Src/slave_monitoring.c
+++ b/Core/Src/slave_monitoring.c
@@ -1,8 +1,11 @@
 #include "slave_monitoring.h"
 
-#include "stm32f3xx_hal.h"
+#include "main.h"
 #include "ts_state_machine.h"
 
+#include "stm32f3xx_hal.h"
+#include "stm32f3xx_hal_gpio.h"
+
 #include <stdint.h>
 #include <string.h>
 
@@ -18,6 +21,14 @@ void slaves_init() {
     memset(&slaves[i].voltages, 0, sizeof(slaves[i].voltages));
     memset(&slaves[i].temperatures, 0, sizeof(slaves[i].temperatures));
   }
+
+  HAL_GPIO_WritePin(SLAVE_POWER_0_GPIO_Port, SLAVE_POWER_0_Pin, GPIO_PIN_SET);
+  HAL_GPIO_WritePin(SLAVE_POWER_1_GPIO_Port, SLAVE_POWER_1_Pin, GPIO_PIN_RESET);
+  HAL_GPIO_WritePin(SLAVE_POWER_DSEL_GPIO_Port, SLAVE_POWER_DSEL_Pin,
+                    GPIO_PIN_RESET);
+  // TODO: Enable & read out current
+  HAL_GPIO_WritePin(SLAVE_POWER_DEN_GPIO_Port, SLAVE_POWER_DEN_Pin,
+                    GPIO_PIN_RESET);
 }
 
 void slaves_check() {