Multitech
Creation procedure
Import steps
Payload Management → Sensor Definitions → Import Manufacturer: MClimate Sensor Type: XX XX - the specific name of the sensor you are currently importing
Select both files:
mclimate-aqi-codec.jsmclimate-aqi-definition.json
Click Import, then Save & Apply – the gateway will create read-only Input objects for telemetry and writable Value objects for every
"downlink": trueproperty.
Take note the example file below ends with 2 lines, that are the "decoder", "encoder" variable names. These are an example and need to match the names you have given them when actually importing them in the Multitech Gateway.
In order for the BACnet integration to work, you would need to import both the code below for the Codec file (in the form of a JS file) and the code for the Definition file after it (in the form of a JSON file).
Multitech BACnet Codec file
// DataCake
function Decoder(bytes, port){
var decoded = decodeUplink({ bytes: bytes, fPort: port }).data;
return decoded;
}
// Milesight
function Decode(port, bytes){
var decoded = decodeUplink({ bytes: bytes, fPort: port }).data;
return decoded;
}
// The Things Industries / Main
function decodeUplink(input) {
try {
var bytes = input.bytes;
var data = {};
function calculateTemperature (rawData) { return (rawData - 400) / 10;}
function calculateHumidity (rawData) { return (rawData * 100) / 256;}
function calculateVoltage (rawData) { return ((rawData * 8) + 1600) / 1000;}
function handleKeepalive(bytes, data) {
data.CO2 = (bytes[1] << 8) | bytes[2];
var temperatureRaw = (bytes[3] << 8) | bytes[4];
data.sensorTemperature = Number(calculateTemperature(temperatureRaw).toFixed(2));
data.relativeHumidity = Number(calculateHumidity(bytes[5]).toFixed(2));
data.batteryVoltage = Number(calculateVoltage(bytes[6]).toFixed(2));
return data;
}
function handleResponse(bytes, data) {
var commands = bytes.map(function (byte) {
return ("0" + byte.toString(16)).substr(-2);
});
commands = commands.slice(0, -7);
var command_len = 0;
commands.forEach(function (command, i) {
switch (command) {
case '04':
command_len = 2;
data.deviceVersions = {
hardware: Number(commands[i + 1]),
software: Number(commands[i + 2])
};
break;
case '12':
command_len = 1;
data.keepAliveTime = parseInt(commands[i + 1], 16);
break;
case '19':
command_len = 1;
var commandResponse = parseInt(commands[i + 1], 16);
data.joinRetryPeriod = (commandResponse * 5) / 60;
break;
case '1b':
command_len = 1;
data.uplinkType = parseInt(commands[i + 1], 16);
break;
case '1d':
command_len = 2;
data.watchDogParams = {
wdpC: commands[i + 1] === '00' ? false : parseInt(commands[i + 1], 16),
wdpUc: commands[i + 2] === '00' ? false : parseInt(commands[i + 2], 16)
};
break;
case '1f':
command_len = 4;
data.boundaryLevels = {
good_medium: parseInt(commands[i + 1] + commands[i + 2], 16),
medium_bad: parseInt(commands[i + 3] + commands[i + 4], 16)
};
break;
case '21':
command_len = 2;
data.autoZeroValue = parseInt(commands[i + 1] + commands[i + 2], 16);
break;
case '25':
command_len = 3;
data.measurementPeriod = {
good_zone: parseInt(commands[i + 1], 16),
medium_zone: parseInt(commands[i + 2], 16),
bad_zone: parseInt(commands[i + 3], 16)
};
break;
case '27':
command_len = 9;
data.buzzerNotification = {
duration_good_beeping: parseInt(commands[i + 1], 16),
duration_good_loud: parseInt(commands[i + 2], 16) * 10,
duration_good_silent: parseInt(commands[i + 3], 16) * 10,
duration_medium_beeping: parseInt(commands[i + 4], 16),
duration_medium_loud: parseInt(commands[i + 5], 16) * 10,
duration_medium_silent: parseInt(commands[i + 6], 16) * 10,
duration_bad_beeping: parseInt(commands[i + 7], 16),
duration_bad_loud: parseInt(commands[i + 8], 16) * 10,
duration_bad_silent: parseInt(commands[i + 9], 16) * 10
};
break;
case '29':
command_len = 15;
data.ledNotification = {
red_good: parseInt(commands[i + 1], 16),
green_good: parseInt(commands[i + 2], 16),
blue_good: parseInt(commands[i + 3], 16),
duration_good: parseInt(commands[i + 4] + commands[i + 5], 16) * 10,
red_medium: parseInt(commands[i + 6], 16),
green_medium: parseInt(commands[i + 7], 16),
blue_medium: parseInt(commands[i + 8], 16),
duration_medium: parseInt(commands[i + 9] + commands[i + 10], 16) * 10,
red_bad: parseInt(commands[i + 11], 16),
green_bad: parseInt(commands[i + 12], 16),
blue_bad: parseInt(commands[i + 13], 16),
duration_bad: parseInt(commands[i + 14] + commands[i + 15], 16) * 10
};
break;
case '2b':
command_len = 1;
data.autoZeroPeriod = parseInt(commands[i + 1], 16);
break;
default:
throw new Error('Unhandled data');
}
commands.splice(i, command_len);
});
return data;
}
if (bytes[0] === 1) {
data = handleKeepalive(bytes, data);
} else {
data = handleResponse(bytes, data);
bytes = bytes.slice(-7);
data = handleKeepalive(bytes, data);
}
return { data: data };
} catch (e) {
throw new Error(e);
}
}Multitech BACnet Definition file
{
"description": "MClimate CO2 Sensor (CO2 Sensor) – BACnet mapping",
"properties": {
"CO2" : { "type": "uint16", "units": "ppm" },
"sensorTemperature" : { "type": "float", "units": "celsius" },
"relativeHumidity" : { "type": "float", "units": "%" },
"batteryVoltage" : { "type": "float", "units": "V" },
"deviceVersions" : { "type": "object" },
"keepAliveTime" : { "type": "uint8", "units": "minutes" },
"joinRetryPeriod" : { "type": "float", "units": "minutes" },
"uplinkType" : { "type": "uint8" },
"watchDogParams" : { "type": "object" },
"boundaryLevels" : { "type": "object" },
"autoZeroValue" : { "type": "uint16" },
"measurementPeriod" : { "type": "object" },
"buzzerNotification": { "type": "object" },
"ledNotification" : { "type": "object" },
"autoZeroPeriod" : { "type": "uint8", "units": "days" }
},
"decoder": "mclimate-c02-sensor-codec.js",
"encoder": "mclimate-c02-sensor-codec.js"
}Last updated
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