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Version 19.12.13 (R2C)
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@xoblite
xoblite authored Dec 13, 2019
1 parent f0262ec commit e848f50
Showing 1 changed file with 40 additions and 19 deletions.
59 changes: 40 additions & 19 deletions homekit/BG_proxy_SGP30_accessory.js
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Original file line number Diff line number Diff line change
Expand Up @@ -24,17 +24,20 @@ var SGP30 = {
manufacturer: "breakouts.xoblite.net", // Manufacturer (optional)
model: "SGP30", // Model (optional, not changeable by the user)
// hardwareRevision: "1.0", // Hardware version (optional)
firmwareRevision: "19.10.4", // Firmware version (optional)
firmwareRevision: "19.12.13", // Firmware version (optional)
serialNumber: "Breakout Gardener", // Serial number (optional)
outputLogs: true, // Enable logging to the console?
}

// ================================================================================

var sgp30_iaq_level = 1, sgp30_tvoc = 0.0, sgp30_co2eq = 0; // sgp30_ethanol = 0, sgp30_hydrogen = 0;
var sgp30_available = false, sgp30_values_found = 0;

function GetFromBG()
{
sgp30_values_found = 0; // This is later used for SGP30 device availability detection via the proxied interface (see below)

http.get(hostBG, (res) =>
{
const { statusCode } = res;
Expand All @@ -55,37 +58,55 @@ function GetFromBG()
if (entries[n].startsWith('sgp30_co2eq')) sgp30_co2eq = parseInt(entries[n].slice(12));
// if (entries[n].startsWith('sgp30_ethanol')) sgp30_ethanol = parseInt(entries[n].slice(14)); // Not relevant for HomeKit
// if (entries[n].startsWith('sgp30_hydrogen')) sgp30_hydrogen = parseInt(entries[n].slice(15)); // Not relevant for HomeKit

sgp30_values_found++; // A(nother) measurement was found -> Apparently an SGP30 device is currently available... :D
}
}

if (SGP30.outputLogs)
// ====================

if (sgp30_values_found > 0) // -> SGP30 measurements found via the proxied interface! -> Device currently available! :)
{
sgp30_available = true;

if (SGP30.outputLogs)
{
var tempString = "SGP30 (proxied) -> TVOC \x1b[100;97m " + Math.round(sgp30_tvoc*220) + " PPB (" + sgp30_tvoc.toFixed(2) + " µg/m3) \x1b[0m / CO2eq \x1b[100;97m " + sgp30_co2eq + " PPM \x1b[0m / IAQ Level \x1b[107;30m ";
if (sgp30_iaq_level == 5) tempString += "5 (Unhealthy) \x1b[0m.";
else if (sgp30_iaq_level == 4) tempString += "4 (Poor) \x1b[0m.";
else if (sgp30_iaq_level == 3) tempString += "3 (Moderate) \x1b[0m.";
else if (sgp30_iaq_level == 2) tempString += "2 (Good) \x1b[0m.";
else tempString += "1 (Excellent) \x1b[0m.";
console.log(tempString);

// console.log("SGP30 (proxied) -> Ethanol " + sgp30_ethanol + " ppm / Hydrogen " + sgp30_hydrogen + " ppm."); // Not relevant for HomeKit
}

// Report the current values it back to HomeKit...
virtualAccessory.getService(Service.AirQualitySensor, "SGP30 IAQ").setCharacteristic(Characteristic.AirQuality, sgp30_iaq_level);
virtualAccessory.getService(Service.AirQualitySensor, "SGP30 IAQ").setCharacteristic(Characteristic.VOCDensity, sgp30_tvoc);
virtualAccessory.getService(Service.AirQualitySensor, "SGP30 IAQ").setCharacteristic(Characteristic.CarbonDioxideLevel, sgp30_co2eq);

}
else // -> No SGP30 measurements found via the proxied interface! -> Device currently unavailable! :(
{
var tempString = "SGP30 (proxied) -> TVOC \x1b[100;97m " + Math.round(sgp30_tvoc*220) + " PPB (" + sgp30_tvoc.toFixed(2) + " µg/m3) \x1b[0m / CO2eq \x1b[100;97m " + sgp30_co2eq + " PPM \x1b[0m / IAQ Level \x1b[107;30m ";
if (sgp30_iaq_level == 5) tempString += "5 (Unhealthy) \x1b[0m.";
else if (sgp30_iaq_level == 4) tempString += "4 (Poor) \x1b[0m.";
else if (sgp30_iaq_level == 3) tempString += "3 (Moderate) \x1b[0m.";
else if (sgp30_iaq_level == 2) tempString += "2 (Good) \x1b[0m.";
else tempString += "1 (Excellent) \x1b[0m.";
console.log(tempString);

// console.log("SGP30 (proxied) -> Ethanol " + sgp30_ethanol + " ppm / Hydrogen " + sgp30_hydrogen + " ppm."); // Not relevant for HomeKit
sgp30_available = false;
console.log("%s (proxied) -> ERROR -> Device currently unavailable.", SGP30.name);
}

// Report the current values it back to HomeKit...
virtualAccessory.getService(Service.AirQualitySensor, "SGP30 IAQ").setCharacteristic(Characteristic.AirQuality, sgp30_iaq_level);
virtualAccessory.getService(Service.AirQualitySensor, "SGP30 IAQ").setCharacteristic(Characteristic.VOCDensity, sgp30_tvoc);
virtualAccessory.getService(Service.AirQualitySensor, "SGP30 IAQ").setCharacteristic(Characteristic.CarbonDioxideLevel, sgp30_co2eq);
// ====================
})
}
else { res.resume(); return; }
}).on('error', (msg) => {
sgp30_available = false;
console.log("%s (proxied) -> HTTP ERROR -> %s", SGP30.name, msg);
});
}

// ================================================================================

console.log("%s (proxied) -> INFO -> Starting: Running on HomeCore (HAP-NodeJS) %s / Node.js %s.", SGP30.name, require('../package.json').version, process.version);
console.log("%s (proxied) -> INFO -> Starting: Running on HAP-NodeJS %s / Node.js %s.", SGP30.name, require('../package.json').version, process.version);

// Create our virtual HomeKit accessory...
var virtualUUID = uuid.generate('hap-nodejs:accessories:airqualitysensor' + SGP30.name);
Expand Down Expand Up @@ -118,17 +139,17 @@ virtualAccessory
.addService(Service.AirQualitySensor, "SGP30 Air Quality")
.setCharacteristic(Characteristic.AirQuality, sgp30_iaq_level)
.getCharacteristic(Characteristic.AirQuality)
.on('get', function(callback) { callback(null, sgp30_iaq_level); });
.on('get', function(callback) { if (sgp30_available) callback(null, sgp30_iaq_level); });
virtualAccessory
.getService(Service.AirQualitySensor, "SGP30 Air Quality")
.setCharacteristic(Characteristic.VOCDensity, sgp30_tvoc)
.getCharacteristic(Characteristic.VOCDensity)
.on('get', function(callback) { callback(null, sgp30_tvoc); })
.on('get', function(callback) { if (sgp30_available) callback(null, sgp30_tvoc); })
virtualAccessory
.getService(Service.AirQualitySensor, "SGP30 Air Quality")
.setCharacteristic(Characteristic.CarbonDioxideLevel, sgp30_co2eq)
.getCharacteristic(Characteristic.CarbonDioxideLevel)
.on('get', function(callback) { callback(null, sgp30_co2eq); });
.on('get', function(callback) { if (sgp30_available) callback(null, sgp30_co2eq); });

// And finally, start reading device data via Breakout Gardener
// continously into our proxy's buffer and reporting it back to HomeKit...
Expand Down

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