diff --git a/lab3/main.c b/lab3/main.c
index 0afc4a6..6ba25a6 100644
--- a/lab3/main.c
+++ b/lab3/main.c
@@ -46,11 +46,11 @@ void SysTick_Handler(void) {  // every 1ms
     ++tick_count;
 
     if (1 == (tick_count % 10)) {
-        //ReflectanceStart(); // every 10ms
+        ReflectanceStart(); // every 10ms
     }
 
     if (2 == (tick_count % 10)) {
-        uint8_t r = ReflectanceRead(1000);
+        uint8_t r = ReflectanceEnd();
         DebugDump( BumpRead(), ReflectancePosition(r) );
         return;
     }