diff --git a/controller/README.md b/controller/README.md
index 310a6be..d558b6b 100644
--- a/controller/README.md
+++ b/controller/README.md
@@ -3,4 +3,10 @@
 ## Installation
 
 1. Go to every subdirectory in drivers directory and follow instructions about installation of drivers
-2. configure cron to run controller.py every 3 minutes as a superuser
+2. configure cron to run controller.py every 15 minutes as a superuser:
+
+```
+crontab -e -u root
+#enter this line
+*/15 * * * * /usr/bin/python /home/pi/projects/tfm/controller/controller.py "Automatski, Senad Uka"
+```