MeteoWind 2021

.idea/.gitignore

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+# Default ignored files
+.idea

barani-meteo-wind-2021.js

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+var pos = 0;
+var bindata = "";
+
+var ConvertBase = function (num) {
+    return {
+        from : function (baseFrom) {
+            return {
+                to : function (baseTo) {
+                    return parseInt(num, baseFrom).toString(baseTo);
+                }
+            };
+        }
+    };
+};
+
+function pad(num) {
+    var s = "0000000" + num;
+    return s.slice(-8);
+}
+
+ConvertBase.dec2bin = function (num) {
+    return pad(ConvertBase(num).from(10).to(2));
+};
+
+ConvertBase.bin2dec = function (num) {
+    return ConvertBase(num).from(2).to(10);
+};
+
+function data2bits(data) {
+    var binary = "";
+    for(var i=0; i<data.length; i++) {
+        binary += ConvertBase.dec2bin(data[i]);
+    }
+    return binary;
+}
+
+function bitShift(bits) {
+    var num = ConvertBase.bin2dec(bindata.substr(pos, bits));
+    pos += bits;
+    return Number(num);
+}
+
+function precisionRound(number, precision) {
+  var factor = Math.pow(10, precision);
+  return Math.round(number * factor) / factor;
+}
+
+function Decoder(fPort, bytes, variables) {
+  bindata = data2bits(bytes);
+
+  if(bytes.length != 9) return {"status": "ERROR", "description": "9 bytes are required"};
+
+    Type =  bitShift(2);
+    Battery = precisionRound(bitShift(5)*0.05+3, 1);
+    Wind_ave10 = precisionRound(bitShift(9)*0.1, 1);
+    Wind_max10 = Wind_ave10 + precisionRound(bitShift(9)*0.1, 1);
+    Wind_min10 = Wind_ave10 - precisionRound(bitShift(9)*0.1, 1);
+    Dir_ave10 = precisionRound(bitShift(9)*1, 1);
+    Dir_max10 = precisionRound(bitShift(9)*1, 1);
+    Dir_hi10 = precisionRound(bitShift(8)*1, 1);
+    Dir_lo10 = precisionRound(bitShift(8)*1, 1);
+
+    decoded = {
+    "Type": Type,
+    "Battery": Battery,
+    "Wind_ave10": Wind_ave10,
+    "Wind_max10": Wind_max10,
+    "Wind_min10": Wind_min10,
+    "Dir_ave10": Dir_ave10,
+    "Dir_max10": Dir_max10,
+    "Dir_hi10": Dir_hi10,
+    "Dir_lo10": Dir_lo10,
+    };
+
+return decoded;
+
+}
+
+function decodeUplink(input) {
+        return {
+            data: Decoder(input.fPort, input.bytes, input.variables)
+        };
+}