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Add support for gw2000+ws90 (Wittboy) parameters #3

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Add support for gw2000+ws90 (Wittboy) parameters #3

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f053c30
add support for gw2000 parameters
s3krit Jun 21, 2023
9341a5c
add heatindex, couple of fixes for gw2000
s3krit Jun 21, 2023
dbc7713
add max wind gust
s3krit Jul 1, 2023
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128 changes: 118 additions & 10 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ module.exports = function (app) {
}

function fahrenheit2kelvin(f) {
return (Math.round((f - 32) * 5/9 + 273.15));
return (Math.round((f+459.67)*5/9*100)/100);
}

function degrees2radians(d) {
Expand All @@ -37,6 +37,21 @@ module.exports = function (app) {
return (Math.round(s*0.44704*100)/100);
}

// convert inches to mm as a float
function in2mm(inches) {
return (Math.round(inches*25.4*100)/100);
}

function calculateHeatIndex(fahrenheit, humidity) {
// Constants for calculation
let c = [-42.379, 2.04901523, 10.14333127, -0.22475541, -6.83783e-03, -5.481717e-02, 1.22874e-03, 8.5282e-04, -1.99e-06];

return c[0] + (c[1] * fahrenheit) + (c[2] * humidity) + (c[3] * fahrenheit * humidity) +
(c[4] * fahrenheit * fahrenheit) + (c[5] * humidity * humidity) +
(c[6] * fahrenheit * fahrenheit * humidity) + (c[7] * fahrenheit * humidity * humidity) +
(c[8] * fahrenheit * fahrenheit * humidity * humidity);
}

plugin.start = function (options, restartPlugin) {
var http = require('http');
var qs = require('querystring');
Expand All @@ -55,6 +70,7 @@ module.exports = function (app) {
var tempin = fahrenheit2kelvin (parseFloat (q.tempinf));
var humidityin = parseFloat(q.humidityin)/100;
var pressure = inhg2pascal (parseFloat (q.baromabsin));
var heatindexin = fahrenheit2kelvin ( calculateHeatIndex (parseFloat(q.tempinf), parseFloat(q.humidityin)));

var values = [
{
Expand All @@ -68,6 +84,10 @@ module.exports = function (app) {
{
path: 'environment.outside.pressure',
value: pressure
},
{
path: 'environment.inside.heatIndex',
value: heatindexin
}
];

Expand All @@ -94,16 +114,104 @@ module.exports = function (app) {
});
}
}

if ((tempKey in q) && (humidityKey in q)) {
var heatIndex = calculateHeatIndex (parseFloat(q[tempKey]), parseFloat(q[humidityKey]));
eval ('var key=options.heatIndex' + i.toString());
if (key) {
values.push ({
path: key,
value: heatIndex
});
}
}
}

if ('windspeedmph' in q) {
var windSpeed = mph2mps (parseFloat (q.windspeedmph));
var path = 'environment.wind.speedTrue';
if (options.windTrue == false)
path = 'environment.wind.speedApparent';
values.push ({
// GW2000/Wittboy specific stuff

// GW2000 has its own temp and humidity sensors
if ( q.model.startsWith('GW2000') ) {
values.push({
path: "environment.outside.temperature",
value: fahrenheit2kelvin(parseFloat(q.tempf)),
});

values.push({
path: "environment.outside.humidity",
value: parseFloat(q.humidity)/100,
});

var heatIndex = calculateHeatIndex (parseFloat(q.tempf), parseFloat(q.humidity));
values.push({
path: "environment.outside.heatIndex",
value: fahrenheit2kelvin(heatIndex),
});
}

if ( 'solarradiation' in q) {
values.push({
path: "environment.outside.solarRadiation",
value: parseFloat(q.solarradiation),
});
}
if ('uv' in q) {
values.push({
path: "environment.outside.uvIndex",
value: parseInt(q.uv),
});
}

var rain_params = [
"rate",
"event",
"daily",
"weekly",
"monthly",
"yearly",
];

for (let i = 0; i < rain_params.length; i++) {
let key = rain_params[i][0] + "rain_piezo";
if (key in q) {
values.push({
path: "environment.outside.rain." + rain_params[i],
value: in2mm(parseFloat(q[key])),
});
}
}

// end of Wittboy specific stuff

if ("windspeedmph" in q) {
var windSpeed = mph2mps(parseFloat(q.windspeedmph));
var path = "environment.wind.speedTrue";
if (options.windTrue == false)
path = "environment.wind.speedApparent";
values.push({
path: path,
value: windSpeed,
});
}

if ("windgustmph" in q) {
var windGust = mph2mps(parseFloat(q.windgustmph));
var path = "environment.wind.gustTrue";
if (options.windTrue == false)
path = "environment.wind.gustApparent";
values.push({
path: path,
value: windGust,
});
}

if ("maxdailygust" in q) {
var maxGust = mph2mps(parseFloat(q.maxdailygust));
var path = "environment.wind.gustMaxTrue";
if (options.windTrue == false)
path = "environment.wind.gustMaxApparent";
values.push({
path: path,
value: windSpeed
value: maxGust,
});
}

Expand Down Expand Up @@ -154,12 +262,12 @@ module.exports = function (app) {
temp1: {
type: 'string',
title: 'SignalK key for Channel-1 temperature',
default: 'environment.outside.temperature'
default: 'environment.bedroom.temperature'
},
humidity1: {
type: 'string',
title: 'SignalK key for Channel-1 humidity',
default: 'environment.outside.humidity'
default: 'environment.bedroom.humidity'
},
temp2: {
type: 'string',
Expand Down
2 changes: 1 addition & 1 deletion package.json
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
{
"name": "signalk-ecowitt",
"version": "0.0.5",
"version": "0.0.6",
"description": "SignalK plugin for Ecowitt weather sensors",
"main": "index.js",
"scripts": {
Expand Down