diff --git a/firmware/config.h b/firmware/config.h
index 7662823..5c33146 100644
--- a/firmware/config.h
+++ b/firmware/config.h
@@ -21,3 +21,4 @@
 
 #define MY_NTP_SERVER "de.pool.ntp.org"
 
+#define DEVELOPMENT
diff --git a/firmware/firmware.ino b/firmware/firmware.ino
index ad31c52..50b0173 100644
--- a/firmware/firmware.ino
+++ b/firmware/firmware.ino
@@ -20,7 +20,12 @@
 // D1, D2, D7, D5
 uint8_t pins[LIGHTS_COUNT] = { 5, 4, 13, 14 };
 
+#ifndef DEVELOPMENT
 IPAddress strip_ip   (192, 168,   0, 26);   // choose an unique IP Adress
+#endif
+#ifdef DEVELOPMENT
+IPAddress strip_ip   (192, 168,   0, 27);   // choose an unique IP Adress
+#endif
 IPAddress gateway_ip (192, 168,   0,  1);  // Router IP
 IPAddress subnet_mask(255, 255, 255,  0);
 IPAddress dns        (192, 168,   0,  1);