diff --git a/arduino/node-code/node-code-final.ino b/arduino/node-code/node-code-final.ino
index 092a142..5fdb07e 100644
--- a/arduino/node-code/node-code-final.ino
+++ b/arduino/node-code/node-code-final.ino
@@ -31,16 +31,16 @@ WebSocketsClient webSocket;
 // define variables
 uint16_t TVOC_base, eCO2_base;
 uint16_t counter = 0;
-float temperature = 0;
-float humidity = 0;
 uint16_t eCO2 = 0;
 uint16_t TVOC = 0;
-bool noise = false;
-unsigned long currentCounter;
-unsigned long lastCounter;
 uint16_t interval = 5000;
+float temperature = 0;
+float humidity = 0;
+unsigned long currentMillis;
+unsigned long lastMillis;
 bool errorSGP30 = false;
 bool errorDHT11 = false;
+bool noise = false;
 
 // hexdump function for websockets binary handler
 void hexdump(const void *mem, uint32_t len, uint8_t cols = 16) {
@@ -119,8 +119,8 @@ void resetValues() {
   eCO2 = 0;
   TVOC = 0;
   noise = false;
-  lastCounter = 0;
-  currentCounter = 0;
+  lastMillis = 0;
+  currentMillis = 0;
 }
 
 // function to check for errors in sensors
@@ -159,8 +159,7 @@ void update(){
   temperature = float(dht.readTemperature());
   humidity = float(dht.readHumidity());
 
-  // display sensordata on oled screen
-  displayData();
+
 }
 
 // function to display data on oled screen
@@ -203,12 +202,18 @@ void setup() {
 
 // loop function
 void loop() {
+  // loop the websocket connection so it stays alive
   webSocket.loop();
 
-  if (currentCounter - lastCounter >= interval){
-    lastCounter = millis();
+  // display sensordata on oled screen
+  displayData();
+
+  // update when interval is met
+  if (currentMillis - lastMillis >= interval){
+    lastMillis = millis();
     update();
   }
 
-  currentCounter = millis();
+  // update the counter
+  currentMillis = millis();
 }
\ No newline at end of file