From 353c6d940d6f34a90aca4d9984eec09f51b514d1 Mon Sep 17 00:00:00 2001
From: Jim Martens <github@2martens.de>
Date: Wed, 3 Jun 2015 19:07:46 +0200
Subject: [PATCH] [ES] Fixed potential error with loop
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Signed-óff-by: Jim Martens <github@2martens.de>
---
 es/blatt3/uebung3-5/uebung3-5.ino | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/es/blatt3/uebung3-5/uebung3-5.ino b/es/blatt3/uebung3-5/uebung3-5.ino
index 6eec18a..3a06805 100644
--- a/es/blatt3/uebung3-5/uebung3-5.ino
+++ b/es/blatt3/uebung3-5/uebung3-5.ino
@@ -90,8 +90,10 @@ void loop() {
         while (readable) {
             currentChar = Serial.read();
             readable = (currentChar != -1);
-            command[i] = currentChar;
-            i++;
+            if (readable) {
+                command[i] = currentChar;
+                i++;
+            }
         }
         command[i] = '\0';