diff --git a/ino/mcopy_light/mcopy_light.ino b/ino/mcopy_light/mcopy_light.ino
index 7eb1565..7679ec1 100644
--- a/ino/mcopy_light/mcopy_light.ino
+++ b/ino/mcopy_light/mcopy_light.ino
@@ -20,6 +20,9 @@ volatile int r = 0;
 volatile int g = 0;
 volatile int b = 0;
 
+unsigned long now; //to be compared to stored values every loop
+unsigned long light_time;
+
 const char cmd_light = 'l';
 
 const char cmd_debug = 'd';
@@ -44,6 +47,13 @@ void loop () {
 		cmd(cmd_char);
 		cmd_char = 'z';
 	}
+   now = millis();
+  //send light signal to pixie every second
+  if (now - light_time >= 1000) {
+      light.setPixelColor(0, r, g, b);
+      light.show();
+      light_time = now;
+  }
 }
 
 //
diff --git a/ino/mcopy_light_tests/mcopy_light_tests.ino b/ino/mcopy_light_tests/mcopy_light_tests.ino
index 97818f7..d6038a0 100644
--- a/ino/mcopy_light_tests/mcopy_light_tests.ino
+++ b/ino/mcopy_light_tests/mcopy_light_tests.ino
@@ -28,6 +28,9 @@ volatile int r = 0;
 volatile int g = 0;
 volatile int b = 0;
 
+unsigned long now; //to be compared to stored values every loop
+unsigned long light_time;
+
 const char cmd_light = 'l';
 
 const char cmd_debug = 'd';
@@ -54,6 +57,12 @@ void loop () {
 		cmd(cmd_char);
 		cmd_char = 'z';
 	}
+  now = millis();
+  if (now - light_time >= 1000) {
+    light.setPixelColor(0, r, g, b);
+    light.show();
+    light_time = now;
+  }
 }
 
 //