diff --git a/README.md b/README.md
index 7e11f8a..e9f5ebf 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,23 @@ Author: Jannik Beyerstedt
 
 
 ## Dependencies
-TODO: Install ESP8266 Arduino Board Support as usual.
+This repository also provides a Makefile, but it does not work currently.
+So the only option to compile and upload is via the Arduino IDE:
+- Install ESP8266 Arduino Board Support from Boards Manager
+- Select you board and upload port
+- Compile and upload. (push the reset button just before the upload starts to wake the chip from deep sleep.)
+
+
 
 ## Settings
-TODO
+All configuration is currently done with preprocessor constants in the code itself.
+
+- `NODENAME`:     User friendly name of the node (used for the influxDB measurements)
+- `BOARD`:        Board type (see line 17 ff.) for the right battery settings
+- `DB_HOSTNAME`:  Host/ domain name of your influxDB (port is fixed to 8086)
+- `DB_PASSWD`:    HTTP BasicAuth string used to sign in
+
+
+
+## Battery Lifespan
+- ESP12: About 6 months
diff --git a/esp8266-sensornode.ino b/esp8266-sensornode.ino
index 245d9ae..3e9ced0 100644
--- a/esp8266-sensornode.ino
+++ b/esp8266-sensornode.ino
@@ -19,13 +19,14 @@ rtcStore_t rtcStore;
 #define BOARD_ESP07S 3 /* standalone ESP07S */
 
 /* DEBUG SETTINGS */
-#define TEST       /* use test config and database */
+// #define TEST       /* use test config and database */
 #define PRINT_INFO /* enable Serial debugging */
 // #define PRINT_DEBUG /* enable additional debug output */
 
 /* CONFIGURATION OPTIONS */
 #ifndef NODENAME
 // #define NODENAME "env-huzzah-01" /* IMPORTANT: CHANGE FOR EACH DEVICE */
+// #define NODENAME "env-keller" /* IMPORTANT: CHANGE FOR EACH DEVICE */
 #define NODENAME "env-TODO" /* IMPORTANT: CHANGE FOR EACH DEVICE */
 #endif
 
@@ -33,7 +34,7 @@ rtcStore_t rtcStore;
 #define BOARD 0 /* IMPORTANT: select one of the BOARD_* types */
 #endif
 
-#define DB_HOSTNAME "ursaminor.fra80"
+#define DB_HOSTNAME "influx-iot.fra80"
 #define DB_PASSWD "c2Vuc29yczpTZW5zb3JzLXcuaW5mbHV4QGhvbWU"  // BasicAuth String
 
 #if BOARD == BOARD_HUZZAH
@@ -41,7 +42,7 @@ rtcStore_t rtcStore;
 #define BATT_CUTOFF 2450 /* 2500=3,0V; 3080=4,0V (Battery Voltage!!!) */
 #elif BOARD == BOARD_ESP07S
 #define BATT_FULL 3600
-#define BATT_CUTOFF 2450 /* 2450=2,7V; 3200=3,5V (VCC Voltage) */
+#define BATT_CUTOFF 2530 /* 2450=2,7V; 3200=3,5V (VCC Voltage) */
 #elif BOARD == BOARD_LOLIN
 #define BATT_FULL 2812
 #define BATT_CUTOFF 2280
@@ -60,7 +61,7 @@ String loggerId = "esp12-";  // UID = this prefix + last 3 octets of the MAC add
 float tempOffset = +0.0;
 float humiOffset = +0.0;
 
-const char* host     = "ursaminor.fra80";
+const char* host     = DB_HOSTNAME;
 const int   httpPort = 8086;
 
 const char* wlan_ssid   = "WLAN-Bey-IoT";
diff --git a/src/rtc-helpers.cpp b/rtc-helpers.cpp
similarity index 100%
rename from src/rtc-helpers.cpp
rename to rtc-helpers.cpp