Wisely CarbonSense

Device Profile for Tesenso IoT Cloud

619B

wisely_carbonsense.json

Decoder/Payload Converter for Tesenso IoT Cloud

https://github.com/Tesenso-GmbH/Device-Decoder/blob/main/Avelon_Wisely_CarbonSense.js

// V1.0, 02.09.2021, DS

if(msg.data)
{
var decoded = decodeFromHex(msg.data);
decoded.ts = msg.ts;
decoded.rssi = msg.rssi;
decoded.snr = msg.snr;
decoded.toa = msg.toa;
decoded.frequency = msg.frequency;
decoded.dr = msg.dr;
decoded.bat = decodeBattery(msg.bat);
decoded.hex = msg.data;

return {
    msg: decoded,
    metadata: metadata,
    msgType: msgType
};
}
else{
  return {
    msg: msg,
    metadata: metadata,
    msgType: msgType
};  
}

//Functions

function decodeFromHex(data) {
    // Decode an uplink message from a buffer
    // (array) of bytes to an object of fields.

    var decoded = {};
    var bytes = parseHexString(data);
    
    var a = bytes[1] << 8;
    var b = bytes[2];
    decoded.barometricPressure = (a|b)*10.0;
    
    var c = bytes[3] << 8;
    var d = bytes[4];
    decoded.temperature = (c|d)/10.0;
    
    decoded.humidity = bytes[5]/2.0;
    
    return decoded;
}
function getTimestamp(ddmmyy, hhmmss) {
    day = parseInt(ddmmyy / 10000, 10);
    month = parseInt(ddmmyy / 100 - day * 100, 10);
    year = parseInt(ddmmyy - month * 100 - day * 10000 +
        2000, 10);
    hour = parseInt(hhmmss / 10000, 10);
    minute = parseInt(hhmmss / 100 - hour * 100, 10);
    second = parseInt(hhmmss - minute * 100 - hour * 10000,
        10);

    date = new Date(year, month - 1, day, hour, minute,
        second)
    return date.valueOf();
}
function parseHexString(hex) {
    for (var bytes = [], c = 0; c < hex.length; c += 2) {
        bytes.push(parseInt(hex.substr(c, 2), 16));
    }
    return bytes;
}
function decodeBattery(byte) {
    if (byte == 0) {
        return 'External power source';
    } else if (byte > 0 && byte < 255) {
        return byte / 254 * 100;
    } else {
        return 'Unknown battery state';
    }
}

function parseHexStringToBytes(hex) {
    for (var bytes = [], c = 0; c < hex.length; c += 2)
        bytes.push(parseInt(hex.substr(c, 2), 16));
    return bytes;
}

function parseHexStringToNibbles(hex) {
    for (var nibbles = [], c = 0; c < hex.length; c += 1)
        nibbles.push(parseInt(hex.substr(c, 1), 16));
    return nibbles;
}

function convertToBinary(x) {
    var bin = 0;
    var rem, i = 1,
        step = 1;
    while (x != 0) {
        rem = x % 2;
        x = parseInt(x / 2);
        bin = bin + rem * i;
        i = i * 10;
    }
    return bin;
}

function decodeToJson(payload) {
    // covert payload to string.
    var str = decodeToString(payload);
    // parse string to JSON
    var data = JSON.parse(str);
    return data;
}
function convertToBinaryString(x) {
    var bin = "";
    var rem, i = 1,
        step = 1;
    while (x != 0) {
        rem = x % 2;
        x = parseInt(x / 2);
        bin = rem + bin;
        i = i * 10;
    }
    if (bin == "")
    {
        return "0";
    }
    else
    {
        return bin;
    }
}

Device Labels

in manual	dataKey	dataType	dataFormat
Luftdruck	barometricPressure	telemetry	integer
Temperatur	temperature	telemetry	integer
Feuchtigkeit	humidity	telemetry	integer
Co2	co2	telemetry	integer

Uplink documentation

sample Uplink message (input to the decoder)

{
    "cmd": "gw",
    "seqno": 635000,
    "EUI": "7C604AFFFE0006B6",
    "ts": 1661261569714,
    "fcnt": 4347,
    "port": 5,
    "freq": 867900000,
    "toa": 107,
    "dr": "SF7 BW125 4/5",
    "ack": false,
    "gws": [{
        "rssi": -62,
        "snr": 9.8,
        "ts": 1661261569768,
        "time": "2022-08-23T14:22:25.991659Z",
        "gweui": "000800FFFF4AA78E",
        "ant": 0,
        "lat": 47.4165437,
        "lon": 8.5425527
    }, {
        "rssi": -95,
        "snr": 5.5,
        "ts": 1661261569733,
        "time": "2022-08-23T15:23:09.538303Z",
        "gweui": "000800FFFF4A4CBA",
        "ant": 0,
        "lat": 47.4071896,
        "lon": 8.403396199999975
    }, {
        "rssi": -117,
        "snr": -5,
        "ts": 1661261569714,
        "time": "2022-08-23T13:32:49.650905Z",
        "gweui": "9C65F9FFFF43367E",
        "ant": 0,
        "lat": 0,
        "lon": 0
    }],
    "bat": 254,
    "data": "fe25de00eb59021825de00eb58021125de00ea57020125dd00ea57020125dc00ec57021925dc00ed57022700",
    "_id": "6304d701d5633f05dd4bcada"
}

sample decoded uplink

{
    "msg": {
        "barometricPressure": 96940,
        "temperature": 23.5,
        "humidity": 44.5,
        "co2": 536,
        "absoluteHumidity": 8.378970567096994,
        "ts": 1660999112051,
        "rssi": -61,
        "dr": "SF7 BW125 4/5",
        "bat": 95.2755905511811,
        "hex": "fe25de00eb59021825de00eb58021125de00ea57020125dd00ea57020125dc00ec57021925dc00ed57022700"
    },
    "metadata": {
        "deviceType": "default",
        "deviceName": "Test Device",
        "ts": "1661264573420"
    },
    "msgType": "POST_TELEMETRY_REQUEST"
}

Downlink documentation

Downlink Port: 10

Zähler für zyklische Übertragung

Das Gerät überträgt seine Daten nach Zähler für zyklische Übertragung × Sensor-Abtastzeit ab der letzten Übertragung.

Downlink-Meldung

ID	FUNC	CTC

Feld	Beschreibung	Wert
ID	Bezeichner	0xFF
FUNC	Funktionscode	0xF0
CTC	Zähler für zyklische Übertragung	0x01 - 0xFF

Standardeinstellung

Der Standardwert des Zählers für zyklische Übertragung ist 0x3C (= 60).

change sendintervall to every 10min:

FFF00A

Docs: https://avelon.cloud/docs/de/appendix/wisely-payload.html#wisely-carbonsense