diff --git a/ledcontroller.c b/ledcontroller.c
index 98d98fb..c606da5 100644
--- a/ledcontroller.c
+++ b/ledcontroller.c
@@ -87,6 +87,26 @@ static void write_global_latch(uint16_t data)
 }
 
 
+void ledcontroller_turn_all_on(void)
+{
+  
+  write_data(0xffff, 2);
+  write_data(0xffff, 2);
+  write_data(0xffff, 2);
+
+}
+
+
+void ledcontroller_turn_all_off(void)
+{
+  
+  write_data(0xffff, 2);
+  write_data(0xffff, 2);
+  write_data(0xffff, 2);
+
+}
+
+
 void ledcontroller_init(void)
 {
 
diff --git a/ledcontroller.h b/ledcontroller.h
index e7f6eb1..af5a5d3 100644
--- a/ledcontroller.h
+++ b/ledcontroller.h
@@ -21,7 +21,8 @@
 void ledcontroller_init(void);
 void led_set(uint8_t lednum, uint16_t red, uint16_t green, uint16_t blue);
 void led_flush(void);
-
+void ledcontroller_turn_all_on(void);
+void ledcontroller_turn_all_off(void);
 
 #endif // LEDCONTROLLER_H
 
diff --git a/rgbyteclock.c b/rgbyteclock.c
index efe43fd..2460184 100644
--- a/rgbyteclock.c
+++ b/rgbyteclock.c
@@ -20,6 +20,8 @@
 void rgbyteclock(void)
 {
 
+  ledcontroller_turn_all_on();
+
   while(1) {
     PORTC ^= (1<<PC5);
     for (int i=0; i<15; i++) {