[LoRa TTN] Add decoder types

This commit is contained in:
Gijs Noorlander
2019-08-12 01:02:14 +02:00
parent 1d2c3ef87b
commit 716ead2146
+155 -56
View File
@@ -14,19 +14,19 @@ function Decoder(bytes, port) {
if (port === 1) {
// Single value
if (bytes.length === 8) {
return decode(bytes, [pluginid, uint16, uint8, int32_10k], ['plugin_id', 'IDX', 'valuecount', 'val_1']);
return decode(bytes, [pluginid, uint16, uint8, int32_1e4], ['plugin_id', 'IDX', 'valuecount', 'val_1']);
}
// Dual value
if (bytes.length === 12) {
return decode(bytes, [pluginid, uint16, uint8, int32_10k, int32_10k], ['plugin_id', 'IDX', 'valuecount', 'val_1', 'val_2']);
return decode(bytes, [pluginid, uint16, uint8, int32_1e4, int32_1e4], ['plugin_id', 'IDX', 'valuecount', 'val_1', 'val_2']);
}
// Triple value
if (bytes.length === 16) {
return decode(bytes, [pluginid, uint16, uint8, int32_10k, int32_10k, int32_10k], ['plugin_id', 'IDX', 'valuecount', 'val_1', 'val_2', 'val_3']);
return decode(bytes, [pluginid, uint16, uint8, int32_1e4, int32_1e4, int32_1e4], ['plugin_id', 'IDX', 'valuecount', 'val_1', 'val_2', 'val_3']);
}
// Quad value
if (bytes.length === 20) {
return decode(bytes, [pluginid, uint16, uint8, int32_10k, int32_10k, int32_10k, int32_10k], ['plugin_id', 'IDX', 'valuecount', 'val_1', 'val_2', 'val_3', 'val_4']);
return decode(bytes, [pluginid, uint16, uint8, int32_1e4, int32_1e4, int32_1e4, int32_1e4], ['plugin_id', 'IDX', 'valuecount', 'val_1', 'val_2', 'val_3', 'val_4']);
}
}
@@ -60,6 +60,21 @@ var uint8 = function (bytes) {
};
uint8.BYTES = 1;
var uint8_1e3 = function (bytes) {
return +(uint8(bytes) / 1e3).toFixed(3);
};
uint8_1e3.BYTES = uint8.BYTES;
var uint8_1e2 = function (bytes) {
return +(uint8(bytes) / 1e2).toFixed(2);
};
uint8_1e2.BYTES = uint8.BYTES;
var uint8_1e1 = function (bytes) {
return +(uint8(bytes) / 1e1).toFixed(1);
};
uint8_1e1.BYTES = uint8.BYTES;
var uint16 = function (bytes) {
if (bytes.length !== uint16.BYTES) {
throw new Error('uint16 must have exactly 2 bytes');
@@ -68,6 +83,44 @@ var uint16 = function (bytes) {
};
uint16.BYTES = 2;
var uint16_1e6 = function (bytes) {
return +(uint16(bytes) / 1e6).toFixed(6);
};
uint16_1e6.BYTES = uint16.BYTES;
var uint16_1e4 = function (bytes) {
return +(uint16(bytes) / 1e4).toFixed(4);
};
uint16_1e4.BYTES = uint16.BYTES;
var uint16_1e2 = function (bytes) {
return +(uint16(bytes) / 1e2).toFixed(2);
};
uint16_1e2.BYTES = uint16.BYTES;
var uint24 = function (bytes) {
if (bytes.length !== uint24.BYTES) {
throw new Error('uint24 must have exactly 3 bytes');
}
return bytesToInt(bytes);
};
uint24.BYTES = 3;
var uint24_1e6 = function (bytes) {
return +(uint24(bytes) / 1e6).toFixed(6);
};
uint24_1e6.BYTES = uint24.BYTES;
var uint24_1e4 = function (bytes) {
return +(uint24(bytes) / 1e4).toFixed(4);
};
uint24_1e4.BYTES = uint24.BYTES;
var uint24_1e2 = function (bytes) {
return +(uint24(bytes) / 1e2).toFixed(2);
};
uint24_1e2.BYTES = uint24.BYTES;
var uint32 = function (bytes) {
if (bytes.length !== uint32.BYTES) {
throw new Error('uint32 must have exactly 4 bytes');
@@ -96,6 +149,21 @@ var int8 = function (bytes) {
};
int8.BYTES = 1;
var int8_1e3 = function (bytes) {
return +(int8(bytes) / 1e3).toFixed(3);
};
int8_1e3.BYTES = int8.BYTES;
var int8_1e2 = function (bytes) {
return +(int8(bytes) / 1e2).toFixed(2);
};
int8_1e2.BYTES = int8.BYTES;
var int8_1e1 = function (bytes) {
return +(int8(bytes) / 1e1).toFixed(1);
};
int8_1e1.BYTES = int8.BYTES;
var int16 = function (bytes) {
if (bytes.length !== int16.BYTES) {
throw new Error('int16 must have exactly 2 bytes');
@@ -108,6 +176,49 @@ var int16 = function (bytes) {
};
int16.BYTES = 2;
var int16_1e6 = function (bytes) {
return +(int16(bytes) / 1e6).toFixed(6);
};
int16_1e6.BYTES = int16.BYTES;
var int16_1e4 = function (bytes) {
return +(int16(bytes) / 1e4).toFixed(4);
};
int16_1e4.BYTES = int16.BYTES;
var int16_1e2 = function (bytes) {
return +(int16(bytes) / 1e2).toFixed(2);
};
int16_1e2.BYTES = int16.BYTES;
var int24 = function (bytes) {
if (bytes.length !== int24.BYTES) {
throw new Error('int24 must have exactly 3 bytes');
}
var value = +(bytesToInt(bytes));
if (value > 8388608) {
value -= 16777216;
}
return value;
};
int24.BYTES = 3;
var int24_1e6 = function (bytes) {
return +(int24(bytes) / 1e6).toFixed(6);
};
int24_1e6.BYTES = int24.BYTES;
var int24_1e4 = function (bytes) {
return +(int24(bytes) / 1e4).toFixed(4);
};
int24_1e4.BYTES = int24.BYTES;
var int24_1e2 = function (bytes) {
return +(int24(bytes) / 1e2).toFixed(2);
};
int24_1e2.BYTES = int24.BYTES;
var int32 = function (bytes) {
if (bytes.length !== int32.BYTES) {
throw new Error('int32 must have exactly 4 bytes');
@@ -120,10 +231,20 @@ var int32 = function (bytes) {
};
int32.BYTES = 4;
var int32_10k = function (bytes) {
var int32_1e6 = function (bytes) {
return +(int32(bytes) / 1e6).toFixed(6);
};
int32_1e6.BYTES = int32.BYTES;
var int32_1e4 = function (bytes) {
return +(int32(bytes) / 1e4).toFixed(4);
};
int32_10k.BYTES = int32.BYTES;
int32_1e4.BYTES = int32.BYTES;
var int32_1e2 = function (bytes) {
return +(int32(bytes) / 100).toFixed(2);
};
int32_1e2.BYTES = int32.BYTES;
var pluginid = function (bytes) {
return +(uint8(bytes));
@@ -132,63 +253,23 @@ pluginid.BYTES = uint8.BYTES;
var latLng = function (bytes) {
return +(int32(bytes) / 1e6).toFixed(6);
return +(int32_1e6(bytes));
};
latLng.BYTES = int32.BYTES;
var uptime = function (bytes) {
return uint64(bytes);
};
uptime.BYTES = uint64.BYTES;
var hdop = function (bytes) {
return +(uint16(bytes) / 100).toFixed(2);
return +(uint8(bytes) / 100).toFixed(2);
};
hdop.BYTES = uint16.BYTES;
hdop.BYTES = uint8.BYTES;
var altitude = function (bytes) {
// Option to increase altitude resolution (also on encoder side)
// return +(int16(bytes) / 4 - 1000).toFixed(1);
return +(int16(bytes));
return +(int16(bytes) / 4 - 1000).toFixed(1);
};
altitude.BYTES = int16.BYTES;
var float = function (bytes) {
if (bytes.length !== float.BYTES) {
throw new Error('Float must have exactly 2 bytes');
}
var isNegative = bytes[0] & 0x80;
var b = ('00000000' + Number(bytes[0]).toString(2)).slice(-8)
+ ('00000000' + Number(bytes[1]).toString(2)).slice(-8);
if (isNegative) {
var arr = b.split('').map(function (x) { return !Number(x); });
for (var i = arr.length - 1; i > 0; i--) {
arr[i] = !arr[i];
if (arr[i]) {
break;
}
}
b = arr.map(Number).join('');
}
var t = parseInt(b, 2);
if (isNegative) {
t = -t;
}
return +(t / 100).toFixed(2);
};
float.BYTES = 2;
var ufloat = function (bytes) {
return +(uint16(bytes) / 100).toFixed(2);
};
ufloat.BYTES = uint16.BYTES;
var pressure = function (bytes) {
return +(uint16(bytes) / 10).toFixed(1);
};
pressure.BYTES = uint16.BYTES;
var bitmap1 = function (byte) {
if (byte.length !== bitmap1.BYTES) {
throw new Error('Bitmap must have exactly 1 byte');
@@ -242,17 +323,35 @@ var decode = function (bytes, mask, names) {
if (typeof module === 'object' && typeof module.exports !== 'undefined') {
module.exports = {
uint8: uint8,
uint8_1e3: uint8_1e3,
uint8_1e2: uint8_1e2,
uint8_1e1: uint8_1e1,
uint16: uint16,
uint16_1e6: uint16_1e6,
uint16_1e4: uint16_1e4,
uint16_1e2: uint16_1e2,
uint24: uint24,
uint24_1e6: uint24_1e6,
uint24_1e4: uint24_1e4,
uint24_1e2: uint24_1e2,
uint32: uint32,
int8: int8,
int8_1e3: int8_1e3,
int8_1e2: int8_1e2,
int8_1e1: int8_1e1,
int16: int16,
int16_1e6: int16_1e6,
int16_1e4: int16_1e4,
int16_1e2: int16_1e2,
int24: int24,
int24_1e6: int24_1e6,
int24_1e4: int24_1e4,
int24_1e2: int24_1e2,
int32: int32,
int32_10k: int32_10k,
int32_1e6: int32_1e6,
int32_1e4: int32_1e4,
int32_1e2: int32_1e2,
pluginid: pluginid,
uptime: uptime,
float: float,
ufloat: ufloat,
pressure: pressure,
latLng: latLng,
hdop: hdop,
altitude: altitude,