diff --git a/README.md b/README.md
index 8188dbe..fb459b7 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Wifi Host for the Arduino-Laser-Spirograph
   /saveconf -> write wificonfig to file  
   /resetwifi -> reconnect wifi with the new settings  
   /readwifi -> returns wifi settings  
-  /readvalues -> return laser and motor values  
+  /readvalues -> return laser and motor values (all 0 at startup, ram only)  
 
 #install
 - install arduino ide (1.8.5)