update readme.md

README.md

@@ -110,6 +110,29 @@ FPort2:
 
 	see remote command set
 
+If you're using [TheThingsNetwork](https://www.thethingsnetwork.org/) you may want to use a payload converter in console. For this purpose go to Application - Payload Formats and copy the code below to the tabs Decoder and Converter. Take care that your application matches the fields pax, ble and wifi.
+
+*Decoder*
+
+function Decoder(bytes, port) {
+  var decoded = {};
+  if (port === 1) {
+    decoded.wifi = (bytes[0] << 8) | bytes[1];
+    decoded.ble = (bytes[2] << 8) | bytes[3];
+  }
+  return decoded;
+}
+
+*Converter*
+
+function Converter(decoded, port) {
+  var converted = decoded;
+  if (port === 1) {
+    converted.pax = converted.ble + converted.wifi;
+  }
+  return converted;
+}
+
 # Remote command set
 
 The device listenes for remote control commands on LoRaWAN Port 2.