diff --git a/Helium_Function/Helium_Decoder.js b/Helium_Function/Helium_Decoder.js
index 8b13789..1c565dd 100644
--- a/Helium_Function/Helium_Decoder.js
+++ b/Helium_Function/Helium_Decoder.js
@@ -1 +1,20 @@
-
+function Decoder(bytes, port) {
+ 
+    var decoded = {};
+ 
+    function transformers(bytes){
+        value = bytes[0] * 256 + bytes[1];
+        if (value >= 32768) {
+        value = 32768 - value;
+        }
+        value = value/100.0;
+        return value;
+    }
+ 
+    if (port == 8) {
+        decoded.generator_temperature = transformers(bytes.slice(0, 2));
+        decoded.generator_humidity = transformers(bytes.slice(2, 4));
+    }
+ 
+    return decoded;
+}
\ No newline at end of file