diff --git a/.gitignore b/.gitignore
index 0331bbb..6b33294 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,7 @@
 *.exe
 *.out
 *.app
+
+#other
+TSI_inout_ino/APIKey.h
+*~
diff --git a/TSI_inout_ino/APIKey_template.h b/TSI_inout_ino/APIKey_template.h
new file mode 100644
index 0000000..8521ae2
--- /dev/null
+++ b/TSI_inout_ino/APIKey_template.h
@@ -0,0 +1,4 @@
+// rename this file to "APIKey.h" and fill in a real key!
+
+String thingtweetAPIKey = "myThingspeakKey";
+
diff --git a/TSI_inout_ino/TSI_inout_ino.ino b/TSI_inout_ino/TSI_inout_ino.ino
index 8959067..6786154 100644
--- a/TSI_inout_ino/TSI_inout_ino.ino
+++ b/TSI_inout_ino/TSI_inout_ino.ino
@@ -28,6 +28,8 @@ Example sketches from Arduino team, Ethernet by Adrian McEwen
 #include <Ethernet.h>
 #include <EthernetUdp.h>
 
+#include "APIKey.h"
+
 // Local Network Settings
 byte mac[] = { 0xD4, 0x28, 0xB2, 0xFF, 0xA0, 0xA1 }; // Must be unique on local network
 
@@ -36,7 +38,6 @@ unsigned int localPort = 8888;      // local port to listen for UDP packets
 
 // ThingSpeak Settings
 char thingSpeakAddress[] = "api.thingspeak.com";
-String thingtweetAPIKey = "21I4R9UJQZJSC60Y";
 
 // Variable Setup - check if these Variables are needed
 long lastConnectionTime = 0;
@@ -78,7 +79,7 @@ int ethernetstatus = -1;
 int readStatus=0;
 
 // Twitter message, intermediate part
-String tmsg = " Hackerspace @ Freies Theater at ";
+String tmsg = " Hackerspace at ";
 
 //debug options
 boolean debug = false;