diff --git a/firmware/input.c b/firmware/input.c
index 62417f8..6da5d06 100644
--- a/firmware/input.c
+++ b/firmware/input.c
@@ -14,6 +14,9 @@ void input_init()
 
 	PORT_KEYPAD(DDR) &= ~(PIN_KEYPAD_MASK); // Key inputs
 	PORT_KEYPAD(PORT) |= PIN_KEYPAD_MASK; // Key pullups
+
+	PORT_SBCMON(DDR) &= ~PIN_SBCMON;
+	PORT_SBCMON(PORT) |= PIN_SBCMON;
 }
 
 inline int8_t get_rotary_delta()
@@ -97,6 +100,11 @@ inline void input_clear_events()
 	sw_event = 0;
 }
 
+inline uint8_t get_sbc_state()
+{
+	return !(PORT_SBCMON(PIN) & PIN_SBCMON);
+}
+
 // Need to call timer_proc() before calling this function!
 void input_proc()
 {
diff --git a/firmware/input.h b/firmware/input.h
index 39d91fd..ce891c3 100644
--- a/firmware/input.h
+++ b/firmware/input.h
@@ -6,6 +6,9 @@
 #define PORT_KEYAUX(t) t##B
 #define PIN_ROTARY_PUSH (1 << 0)
 
+#define PORT_SBCMON(t) t##C
+#define PIN_SBCMON (1 << 1)
+
 #define PORT_ROTARY(t) t##D
 #define PIN_ROTARY_A (1 << 3) // INT1
 #define PIN_ROTARY_B (1 << 4)
@@ -15,6 +18,6 @@ void input_proc();
 int8_t get_rotary_delta();
 uint8_t get_switch_event();
 void input_clear_events();
-extern uint8_t ctime;
+uint8_t get_sbc_state();
 
 #endif // INPUT_H
diff --git a/firmware/main.c b/firmware/main.c
index afafecd..d4bb7f4 100644
--- a/firmware/main.c
+++ b/firmware/main.c
@@ -8,6 +8,8 @@
 #include "batmon.h"
 #include "pm.h"
 
+#define TIME_POWEROFF 5000
+
 #define PORT_SPI(t) t##B
 #define PIN_SPI_CS (1 << 2)
 
@@ -92,6 +94,7 @@ int main()
 
 	suspend();
 
+	pm_init();
 	lcd_init(LCD_DISP_ON);
 	lcd_title(PSTR("Starting IOC Rev."), PSTR(GITREV));
 	spi_init();
@@ -104,9 +107,12 @@ int main()
 		reset();
 	}
 
-	lcd_title(PSTR("Starting up."), PSTR("Please wait..."));
-
+	lcd_title(PSTR("Starting up."), PSTR("Please wait."));
+	pm_sbc_on();
 	_delay_ms(10);
+	while (!get_sbc_state());
+
+	lcd_title(PSTR("Starting up."), PSTR("Please wait..."));
 
 	while (1) {
 		if (!spi_proc()) {
@@ -117,10 +123,15 @@ int main()
 			case 1:
 				input_proc();
 				break;
+			case 2:
+				if (get_sbc_state())
+					timer_set(TIMID_POWEROFF, MS_TO_TICKS(TIME_POWEROFF));
+				if (timer_expired(TIMID_POWEROFF))
+					reset();
 			}
 		}
 		sched = sched + 1;
-		if (sched == 4) {
+		if (sched == 5) {
 			sched = 0;
 			if (batmon_proc())
 				reset();
diff --git a/firmware/pm.c b/firmware/pm.c
index dc4af6f..7c30c6c 100644
--- a/firmware/pm.c
+++ b/firmware/pm.c
@@ -66,3 +66,19 @@ char* post()
 
 	return 0;
 }
+
+void pm_init()
+{
+	PORT_SBCPOW(DDR) |= PIN_SBCPOW;
+	pm_sbc_off();
+}
+
+void pm_sbc_on()
+{
+	PORT_SBCPOW(PORT) |= PIN_SBCPOW;
+}
+
+void pm_sbc_off()
+{
+	PORT_SBCPOW(PORT) &= ~PIN_SBCPOW;
+}
diff --git a/firmware/pm.h b/firmware/pm.h
index 105275f..a0e2b07 100644
--- a/firmware/pm.h
+++ b/firmware/pm.h
@@ -2,7 +2,14 @@
 #define PM_H
 #include <avr/io.h>
 
+#define PORT_SBCPOW(t) t##C
+#define PIN_SBCPOW (1 << 2)
+
+void pm_init();
 void suspend();
 char* post();
+void pm_init();
+void pm_sbc_on();
+void pm_sbc_off();
 
 #endif // PM_H
diff --git a/firmware/systick.h b/firmware/systick.h
index 7b081d3..db167e6 100644
--- a/firmware/systick.h
+++ b/firmware/systick.h
@@ -4,7 +4,8 @@
 
 #define TIMID_SW_DEBOUNCE 0
 #define TIMID_SW_LONGPRESS 1
-#define NTIM 2
+#define TIMID_POWEROFF 2
+#define NTIM 3
 
 #define MS_TO_TICKS(ms) (((ms/1000 * F_CPU/1024) / 256))