diff --git a/arduino-sensor/arduino-sensor.ino b/arduino-sensor/arduino-sensor.ino
index fb0430c..95694e3 100644
--- a/arduino-sensor/arduino-sensor.ino
+++ b/arduino-sensor/arduino-sensor.ino
@@ -35,6 +35,11 @@ void setup() {
 
   EEPROM.begin(512);
 
+  uint8_t version = EEPROM.read(0x0);
+  if (version != 0x1) {
+    initEeprom();
+  }
+
   // Connect to WiFi network
   Serial.println();
   Serial.println();
@@ -118,10 +123,16 @@ void loop() {
 }
 
 #define LENGTH_ID 10
+#define NODEID_ADDR 0x16
+
+void initEeprom() {
+  EEPROM.write(0x0, 0x1);
+  setNodeId("");
+}
 
 void setNodeId(String value) {
   const char* c = value.c_str();
-  size_t addr = 0x0;
+  size_t addr = NODEID_ADDR;
 
   int givenLength = strlen(c);
   if (givenLength >= LENGTH_ID) {
@@ -139,7 +150,7 @@ void setNodeId(String value) {
 }
 
 char* getNodeId() {
-  size_t addr = 0x0;
+  size_t addr = NODEID_ADDR;
 
   char* eepromId = new char[LENGTH_ID];
   for (size_t i = 0; i < LENGTH_ID; i++) {