diff --git a/include/timer.h b/include/timer.h
index 2a5b7c9..021ceb1 100644
--- a/include/timer.h
+++ b/include/timer.h
@@ -8,4 +8,6 @@ unsigned long int start_timer(unsigned long int start);
 
 unsigned long int stop_timer(unsigned long int start);
 
+void wait(int sec);
+
 #endif
\ No newline at end of file
diff --git a/src/timer.c b/src/timer.c
index 08cd261..29cc0a5 100644
--- a/src/timer.c
+++ b/src/timer.c
@@ -30,4 +30,9 @@ unsigned long int start_timer(unsigned long int start) {
 
 unsigned long int stop_timer(unsigned long int start) {
 	return Microsecondes() - start;
+}
+
+void wait(int sec) {
+    unsigned long int end = Microsecondes() + (sec * DELTA);
+    while (Microsecondes() <= end);
 }
\ No newline at end of file