View difference between Paste ID: 1sMcRMPA and vL44uYtD

 // code is not verified to work.  just illustrating some changes to be made.
 
 int delaytime = 2000;
-boolean statechanged(false);
+
-boolean lastbutton(LOW);
+
 bool statechanged = false;  // notice how this is different?
 bool lastbutton = LOW;
- void setup()
+bool currentButton = LOW;
 
- pinMode(ledpin, OUTPUT);
+
- pinMode(switchpin, INPUT);
+void setup()
 {
   pinMode(ledpin, OUTPUT);
   pinMode(switchpin, INPUT);
 }
-
+
-  if (digitalRead(switchpin) == HIGH && lastbutton == LOW)
+
 {
   currentButton = digitalRead(switchpin);
   if (currentButton == HIGH && lastbutton == LOW)
   {
     statechanged = true;
     lastbutton = HIGH;
-    lastbutton = digitalRead(switchpin);
+
   else
-
+
-
+    lastbutton = currentButton;  // calling digitalRead() like could have a problem if the pin's state changed since you last checked
   }
 
 
   digitalWrite(ledpin, HIGH);
-
+
   digitalWrite(ledpin, LOW);
- {
+
-   delaytime = delaytime - 499;
+
- }
+
- else
+
- {
+    delaytime = delaytime - 499;
-   delaytime = 2000;
+  }
- }
+  else
   {
     delaytime = 2000;
   }
 }