add ttn data decoder scripts

ttnscripts/lgt92.js

@@ -0,0 +1,45 @@
+function Decoder(bytes, port) {
+  // Decode an uplink message from a buffer
+  // (array) of bytes to an object of fields.
+  var alarm=(bytes[6] & 0x40)?true:false; //Alarm status
+  value=((bytes[6] & 0x3f) <<8) | bytes[7];
+  var batV=value/1000; //Battery,units:Volts
+  value=bytes[8]<<8 | bytes[9];
+  if(bytes[8] & 0x80)
+  {
+    value |=0xFFFF0000;
+  }
+  var roll=value/100; //roll,units: °
+  value=bytes[10]<<8 | bytes[11];
+  if(bytes[10] & 0x80)
+  {
+    value |=0xFFFF0000;
+  }
+  var pitch=value/100; //pitch,units: °
+  var json={
+    roll:roll,
+    pitch:pitch,
+    batV:batV,
+    alarm:alarm
+  };
+  var value=bytes[0]<<16 | bytes[1]<<8 | bytes[2];
+  if(bytes[0] & 0x80)
+  {
+    value |=0xFFFFFF000000;
+  }
+  var value2=bytes[3]<<16 | bytes[4]<<8 | bytes[5];
+  if(bytes[3] & 0x80)
+  {
+    value2 |=0xFFFFFF000000;
+  }
+  if (value == 0x0FFFFF && value2 == 0x0FFFFF)
+  {
+    //gps disabled (low battery)
+  } else if (value === 0 && value2 === 0) {
+    //gps no position yet
+  } else {
+    json.latitude=value/10000; //gps latitude,units: °
+    json.longitude=value2/10000; //gps longitude,units: °
+  }
+  return json;
+}

ttnscripts/rhf1s001.js

@@ -0,0 +1,25 @@
+function Decoder(bytes, port) {
+  var obj = new Object();
+
+  //temp
+  var tempEncoded=(bytes[2]<<8)|(bytes[1]);
+  var tempDecoded=(tempEncoded*175.72/65536)-46.85;
+  obj.temp=tempDecoded.toFixed(2);
+
+  //humidity
+  var humEncoded=(bytes[3]);
+  var humDecoded=(humEncoded*125/256)-6;
+  obj.hum=humDecoded.toFixed(2);
+
+  //period
+  var periodEncoded=(bytes[5]<<8)|(bytes[4]);
+  var periodDecoded=(periodEncoded*2);
+  obj.period=periodDecoded+" sec";
+
+  //battery
+  var batteryEncoded=(bytes[8]);
+  var batteryDecoded=(batteryEncoded+150)*0.01;
+  obj.battery=batteryDecoded.toFixed(2);
+
+  return obj;
+}