Decoding the RAK811 LoRa packets encoded as HEX.

DecodePacket.js

function hex2txt(packet) {
  fields=packet.split("=");
  values=fields[1].split(":");
  info=values[0].split(",");
  console.log(info[2]+" chars received");
  console.log("RSSI: "+info[0]);
  console.log("SNR: "+info[1]);
  text=values[1];
  j=text.length;
  var res="";
  for(i=0; i<j; i+=2) {
    s=parseInt(Number("0x"+text.substr(i,2)), 10);
    res=res+String.fromCharCode(s);
  }
  console.log(res);}