diff --git a/simulator/send-random/send-random.ino b/simulator/send-random/send-random.ino
index 70f8bb0..f387759 100644
--- a/simulator/send-random/send-random.ino
+++ b/simulator/send-random/send-random.ino
@@ -36,7 +36,7 @@ void sendvalues(void)
 {
   int foo;
 
-  Serial.print("X ");
+  Serial.print("X");
   for (foo=0; foo<NBVAL; foo++) {
     Serial.print(" ");
     Serial.print(values[foo]);
@@ -48,7 +48,7 @@ void sendvalues(void)
 void loop() {
   updatevalues();
   sendvalues();
-  delay(1000);
+  delay(2500);
 }
 
 /* -------------------------------------------------- */