diff --git a/serial/serial.ino b/serial/serial.ino
index 3e4958153d41e425246d7c3b976b508de94e1626..41a6abdf141209cc3624904e3c5f7ca00ab5831e 100644
--- a/serial/serial.ino
+++ b/serial/serial.ino
@@ -88,7 +88,7 @@ void processCommand(String command) {
     int angle = angleStr.toInt();
     
     // Constrain angle to valid range
-    angle = constrain(angle, 0, 180);
+    angle = constrain(angle, 30, 150);
     
     // Update finger position based on command
     if (finger == "index") {