> For the complete documentation index, see [llms.txt](https://docs.mclimate.eu/mclimate-lorawan-devices/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mclimate.eu/mclimate-lorawan-devices/devices/mclimate-wireless-thermostat/decoding-and-bacnet-object-mapping/bacnet-codec-and-definition-files/multitech.md).

# Multitech

## Creation procedure

#### Import steps

1. **Payload Management → Sensor Definitions → Import**\
   \&#xNAN;*Manufacturer*: **MClimate**  *Sensor Type*: **XX**\
   \
   XX - the specific name of the sensor you are currently importing
2. Select **both files**:
   * `mclimate-aqi-codec.js`
   * `mclimate-aqi-definition.json`
3. Click **Import**, then **Save & Apply** – the gateway will create read-only Input objects for telemetry and writable Value objects for every `"downlink": true` property.

{% hint style="warning" %}
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.
{% endhint %}

{% hint style="warning" %}
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).
{% endhint %}

### Multitech BACnet Codec file

```json
// 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 toBool(value){
            return value == '1';
        }
        function calculateTemperature(rawData){return (rawData - 400) / 10};
        function calculateHumidity(rawData){return (rawData * 100) / 256};
        function decbin(number) {
            if (number < 0) {
                number = 0xFFFFFFFF + number + 1
            }
            number = number.toString(2);
            return "00000000".substr(number.length) + number;
        }
        function handleKeepalive(bytes, data){
            var tempRaw = (bytes[1] << 8) | bytes[2];
            var temperature = calculateTemperature(tempRaw);
            var humidity = calculateHumidity(bytes[3]);
            var batteryVoltage = ((bytes[4] << 8) | bytes[5])/1000;

            var targetTemperature, powerSourceStatus, lux, pir;
        if(bytes[0] == 1){
            targetTemperature = bytes[6];
            powerSourceStatus = bytes[7];
            lux = (bytes[8] << 8) | bytes[9];
            pir = toBool(bytes[10]);
        }else{
            targetTemperature = ((parseInt(decbin(bytes[6]), 2)) << 8) | parseInt(decbin(bytes[7]), 2)/10;
            powerSourceStatus = bytes[8];
            lux = (bytes[9] << 8) | bytes[10];
            pir = toBool(bytes[11]);
        }

            data.sensorTemperature = Number(temperature.toFixed(2));
            data.relativeHumidity = Number(humidity.toFixed(2));
            data.batteryVoltage = Number(batteryVoltage.toFixed(2));
            data.targetTemperature = targetTemperature;
            data.powerSourceStatus = powerSourceStatus;
            data.lux = lux;
            data.pir = pir;
            return data;
        }
    
        function handleResponse(bytes, data, keepaliveLength){
        var commands = bytes.map(function(byte){
            return ("0" + byte.toString(16)).substr(-2); 
        });
        commands = commands.slice(0,-keepaliveLength);
        var command_len = 0;
    
        commands.map(function (command, i) {
            switch (command) {
                case '04':
                    {
                        command_len = 2;
                        var hardwareVersion = commands[i + 1];
                        var softwareVersion = commands[i + 2];
                        data.deviceVersions = { hardware: Number(hardwareVersion), software: Number(softwareVersion) };
                    }
                break;
                case '12':
                    {
                        command_len = 1;
                        data.keepAliveTime = parseInt(commands[i + 1], 16);
                    }
                break;
                case '14':
                    {
                        command_len = 1;
                        data.childLock = toBool(parseInt(commands[i + 1], 16)) ;
                    }
                break;
                case '15':
                    {
                        command_len = 2;
                        data.temperatureRangeSettings = { min: parseInt(commands[i + 1], 16), max: parseInt(commands[i + 2], 16) };
                    }
                    break;
                case '19':
                    {
                        command_len = 1;
                        var commandResponse = parseInt(commands[i + 1], 16);
                        var periodInMinutes = commandResponse * 5 / 60;
                        data.joinRetryPeriod =  periodInMinutes;
                    }
                break;
                case '1b':
                    {
                        command_len = 1;
                        data.uplinkType = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '1d':
                    {
                        command_len = 2;
                        var wdpC = commands[i + 1] == '00' ? false : (parseInt(commands[i + 1], 16))
                        var wdpUc = commands[i + 2] == '00' ? false : parseInt(commands[i + 2], 16);
                        data.watchDogParams= { wdpC: wdpC, wdpUc: wdpUc } ;
                    }
                break;
                case '2f':
                    {
                        command_len = 1;
                        data.targetTemperature = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '30':
                    {
                        command_len = 1;
                        data.manualTargetTemperatureUpdate = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '32':
                    {
                        command_len = 1;
                        data.heatingStatus = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '34':
                    {
                        command_len = 1;
                        data.displayRefreshPeriod = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '36':
                    {
                        command_len = 1;
                        data.sendTargetTempDelay = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '38':
                    {
                        command_len = 1;
                        data.automaticHeatingStatus = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '3a':
                    {
                        command_len = 1;
                        data.sensorMode = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '3d':
                    {
                        command_len = 1;
                        data.pirSensorStatus = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '3f':
                    {
                        command_len = 1;
                        data.pirSensorSensitivity = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '41':
                    {
                        command_len = 1;
                        data.currentTemperatureVisibility = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '43':
                    {
                        command_len = 1;
                        data.humidityVisibility = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '45':
                    {
                        command_len = 1;
                        data.lightIntensityVisibility = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '47':
                    {
                        command_len = 1;
                        data.pirInitPeriod = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '49':
                    {
                        command_len = 1;
                        data.pirMeasurementPeriod = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '4b':
                    {
                        command_len = 1;
                        data.pirCheckPeriod = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '4d':
                    {
                        command_len = 1;
                        data.pirBlindPeriod = parseInt(commands[i + 1], 16) ;
                    }
                break;
                case '4f':
                    {
                        command_len = 1;
                        data.temperatureHysteresis = parseInt(commands[i + 1], 16)/10 ;
                    }
                break;
                case '51':
                    {
                        command_len = 2;
                        data.targetTemperature = ((parseInt(commands[i + 1], 16) << 8) | parseInt(commands[i + 2], 16))/10  ;
                    }
                break;
                case '53':
                    {
                        command_len = 1;
                        data.targetTemperatureStep = parseInt(commands[i + 1], 16) / 10;
                    }
                break;
                case '54':
                    {
                        command_len = 2;
                        data.manualTargetTemperatureUpdate = ((parseInt(commands[i + 1], 16) << 8) | parseInt(commands[i + 2], 16))/10;
                    }
                break;
                case 'a0': {
                    command_len = 4;
                    var fuota_address = (parseInt(commands[i + 1], 16) << 24) | 
                                        (parseInt(commands[i + 2], 16) << 16) | 
                                        (parseInt(commands[i + 3], 16) << 8) | 
                                        parseInt(commands[i + 4], 16);
                    var fuota_address_raw = commands[i + 1] + commands[i + 2] + 
                                            commands[i + 3] + commands[i + 4];
                    
                    data.fuota = { fuota_address: fuota_address, fuota_address_raw: fuota_address_raw };
                    break;
                }
                default:
                    break;
            }
            commands.splice(i,command_len);
        });
        return data;
        }
        if (bytes[0] == 1|| bytes[0] == 129) {
            data = handleKeepalive(bytes, data);
        }else{
            var keepaliveLength = 11;
            var potentialKeepAlive = bytes.slice(-12);
            if(potentialKeepAlive[0] == 129) keepaliveLength = 12;
            data = handleResponse(bytes,data, keepaliveLength);
            bytes = bytes.slice(-keepaliveLength);
            data = handleKeepalive(bytes, data);
        }
        return {data: data};
    } catch (e) {
        console.log(e)
        throw new Error('Unhandled data');
    }
}

function encodeDownlink(input) {
  var bytes = [];

  for (let key of Object.keys(input.data)) {
    switch (key) {
      case "setKeepAlive": {
        bytes.push(0x02);
        bytes.push(input.data.setKeepAlive);
        break;
      }
      case "getKeepAliveTime": {
        bytes.push(0x12);
        break;
      }
      case "getDeviceVersions": {
        bytes.push(0x04);
        break;
      }
      case "setTargetTemperature": {
        var temp = input.data.setTargetTemperature;
        bytes.push(0x2E);
        bytes.push(temp);
        break;
      }
      case "getTargetTemperature": {
        bytes.push(0x2F);
        break;
      }

      case "setKeysLock": {
        bytes.push(0x07);
        bytes.push(input.data.setKeysLock);
        break;
      }
      case "getKeysLock": {
        bytes.push(0x14);
        break;
      }
      case "setTemperatureRange": {
        bytes.push(0x08);
        bytes.push(input.data.setTemperatureRange.min);
        bytes.push(input.data.setTemperatureRange.max);
        break;
      }
      case "getTemperatureRange": {
        bytes.push(0x15);
        break;
      }
      case "setJoinRetryPeriod": {
        // period should be passed in minutes
        let periodToPass = (input.data.setJoinRetryPeriod * 60) / 5;
        periodToPass = int(periodToPass);
        bytes.push(0x10);
        bytes.push(periodToPass);
        break;
      }
      case "getJoinRetryPeriod": {
        bytes.push(0x19);
        break;
      }
      
      case "setUplinkType": {
        bytes.push(0x11);
        bytes.push(input.data.setUplinkType);
        break;
      }
      case "getUplinkType": {
        bytes.push(0x1B);
        break;
      }
      case "setWatchDogParams": {
          bytes.push(0x1C);
          bytes.push(input.data.SetWatchDogParams.confirmedUplinks);
          bytes.push(input.data.SetWatchDogParams.unconfirmedUplinks);
          break;
        }
        case "getWatchDogParams": {
            bytes.push(0x1D);
            break;
        }
        case "SetHeatingStatus": {
          bytes.push(0x31);
          bytes.push(input.data.SetHeatingStatus);
          break;
        }
        case "GetHeatingStatus": {
          bytes.push(0x32);
          break;
        }
        case "SetDisplayRefreshPeriod": {
          bytes.push(0x33);
          bytes.push(input.data.SetDisplayRefreshPeriod);
          break;
        }
        case "GetDisplayRefreshPeriod": {
          bytes.push(0x34);
          break;
        }
        case "SetTargetSendDelay": {
          bytes.push(0x35);
          bytes.push(input.data.SetTargetSendDelay);
          break;
        }
        case "GetTargetSendDelay": {
          bytes.push(0x36);
          break;
        }
        case "SetAutomaticHeatingStatus": {
          bytes.push(0x37);
          bytes.push(input.data.SetAutomaticHeatingStatus);
          break;
        }
        case "GetAutomaticHeatingStatus": {
          bytes.push(0x38);
          break;
        }
        case "SetSensorMode": {
          bytes.push(0x39);
          bytes.push(input.data.SetSensorMode);
          break;
        }
        case "GetSensorMode": {
          bytes.push(0x3a);
          break;
        }
        case "SetPIRSensorStatus": {
          bytes.push(0x3c);
          bytes.push(input.data.SetPIRSensorStatus);
          break;
        }
        case "GetPIRSensorStatus": {
          bytes.push(0x3d);
          break;
        }
        case "SetPIRSensorSensitivity": {
          bytes.push(0x3e);
          bytes.push(input.data.SetPIRSensorSensitivity);
          break;
        }
        case "GetPIRSensorSensitivity": {
          bytes.push(0x3f);
          break;
        }
        case "SetCurrentTemperatureVisibility": {
          bytes.push(0x40);
          bytes.push(input.data.SetCurrentTemperatureVisibility);
          break;
        }
        case "GetCurrentTemperatureVisibility": {
          bytes.push(0x41);
          break;
        }
        case "SetHumidityVisibility": {
          bytes.push(0x42);
          bytes.push(input.data.SetHumidityVisibility);
          break;
        }
        case "GetHumidityVisibility": {
          bytes.push(0x43);
          break;
        }
        case "SetLightIntensityVisibility": {
          bytes.push(0x44);
          bytes.push(input.data.SetLightIntensityVisibility);
          break;
        }
        case "GetLightIntensityVisibility": {
          bytes.push(0x45);
          break;
        }
        case "SetPIRInitPeriod": {
          bytes.push(0x46);
          bytes.push(input.data.SetPIRInitPeriod);
          break;
        }
        case "GetPIRInitPeriod": {
          bytes.push(0x47);
          break;
        }
        case "SetPIRMeasurementPeriod": {
          bytes.push(0x48);
          bytes.push(input.data.SetPIRMeasurementPeriod);
          break;
        }
        case "GetPIRMeasurementPeriod": {
          bytes.push(0x49);
          break;
        }
        case "SetPIRCheckPeriod": {
          var time = input.data.SetPIRCheckPeriod;
          var timeLowByte = time & 0xFF;  
          var timeHighByte = (time >> 8) & 0xFF; 
          bytes.push(0x4A);
          bytes.push(timeHighByte);
          bytes.push(timeLowByte);
          break;
        }
        case "GetPIRCheckPeriod": {
          bytes.push(0x4B);
          break;
        }
        case "SetPIRBlindPeriod": {
          var time = input.data.SetPIRBlindPeriod;
          var timeLowByte = time & 0xFF;  
          var timeHighByte = (time >> 8) & 0xFF; 
          bytes.push(0x4C);
          bytes.push(timeHighByte);
          bytes.push(timeLowByte);
          break;
        }
        case "GetPIRBlindPeriod": {
          bytes.push(0x4D);
          break;
        }
        case "SetTemperatureHysteresis": {
          bytes.push(0x4E);
          bytes.push(input.data.SetTemperatureHysteresis * 10);
          break;
        }
        case "GetTemperatureHysteresis": {
          bytes.push(0x4F);
          break;
        }
        case "SetTargetTemperaturePrecisely": {
          var targetTemperature = input.data.SetTargetTemperaturePrecisely * 10;
          var targetTemperatureLowByte = targetTemperature & 0xFF;  
          var targetTemperatureHighByte = (targetTemperature >> 8) & 0xFF; 
          bytes.push(0x50);
          bytes.push(targetTemperatureHighByte);
          bytes.push(targetTemperatureLowByte);
          break;
        }
        case "GetTargetTemperaturePrecisely": {
          bytes.push(0x51);
          break;
        }
        case "setTargetTemperatureStep": {
          bytes.push(0x52);
          bytes.push(input.data.setTargetTemperatureStep * 10);
          break;
        }
        case "getTargetTemperatureStep": {
          bytes.push(0x53);
          break;
        }
        case "setTempSensorCompensation": {
          bytes.push(0x55);
          bytes.push(input.data.setTempSensorCompensation.compensation);
          bytes.push(input.data.setTempSensorCompensation.temperature * 10);
          break;
        }
        case "getTempSensorCompensation": {
          bytes.push(0x56);
          break;
        }
        case "restartDevice": {
          bytes.push(0xA5);
          break;
        }
      case "sendCustomHexCommand": {
        let sendCustomHexCommand = input.data.sendCustomHexCommand;
        for (let i = 0; i < sendCustomHexCommand.length; i += 2) {
          const byte = parseInt(sendCustomHexCommand.substr(i, 2), 16);
          bytes.push(byte);
        }
        break;
      }
      default: {
      }
    }
  }

  return {
    bytes: bytes,
    fPort: 1,
    warnings: [],
    errors: [],
  };
}

function decodeDownlink(input) {
  return {
    data: {
      bytes: input.bytes,
    },
    warnings: [],
    errors: [],
  };
}

// example downlink commands
// {"setTargetTemperature":20} --> 0x2E14
// {"setTemperatureRange":{"min":15,"max":21}} --> 0x080F15
// {"sendCustomHexCommand":"080F15"} --> 0x080F15
```

### Multitech BACnet Definition file

```json
{
  "description": "MClimate Wireless Thermostat (WT) – BACnet mapping",
  "properties": {

    "sensorTemperature":               { "type": "float",  "units": "celsius" },
    "relativeHumidity":                { "type": "float",  "units": "%"       },
    "batteryVoltage":                  { "type": "float",  "units": "V"       },
    "targetTemperature":               { "type": "float",  "units": "celsius" },
    "powerSourceStatus":               { "type": "uint8"                      },
    "lux":                             { "type": "uint16", "units": "lx"      },
    "pir":                             { "type": "bool"                       },

    "deviceVersions":                  { "type": "object"                     },
    "keepAliveTime":                   { "type": "uint8",  "units": "minutes" },
    "childLock":                       { "type": "bool"                       },
    "temperatureRangeSettings":        { "type": "object"                     },
    "joinRetryPeriod":                 { "type": "float",  "units": "minutes" },
    "uplinkType":                      { "type": "uint8"                      },
    "watchDogParams":                  { "type": "object"                     },
    "manualTargetTemperatureUpdate":   { "type": "float",  "units": "celsius" },
    "heatingStatus":                   { "type": "uint8"                      },
    "displayRefreshPeriod":            { "type": "uint8",  "units": "minutes" },
    "sendTargetTempDelay":             { "type": "uint8",  "units": "seconds" },
    "automaticHeatingStatus":          { "type": "uint8"                      },
    "sensorMode":                      { "type": "uint8"                      },
    "pirSensorStatus":                 { "type": "uint8"                      },
    "pirSensorSensitivity":            { "type": "uint8"                      },
    "currentTemperatureVisibility":    { "type": "uint8"                      },
    "humidityVisibility":              { "type": "uint8"                      },
    "lightIntensityVisibility":        { "type": "uint8"                      },
    "pirInitPeriod":                   { "type": "uint8",  "units": "seconds" },
    "pirMeasurementPeriod":            { "type": "uint8",  "units": "seconds" },
    "pirCheckPeriod":                  { "type": "uint16", "units": "seconds" },
    "pirBlindPeriod":                  { "type": "uint16", "units": "seconds" },
    "temperatureHysteresis":           { "type": "float",  "units": "celsius" },
    "targetTemperatureStep":           { "type": "float",  "units": "celsius" },
    "fuota":                           { "type": "object"                     },

    "setKeepAlive":                    { "type": "uint8",  "units": "minutes", "downlink": true },
    "setTargetTemperature":            { "type": "uint8",  "units": "celsius", "downlink": true },
    "setKeysLock":                     { "type": "bool",                     "downlink": true },
    "setTemperatureRange":             { "type": "object",                   "downlink": true },
    "setJoinRetryPeriod":              { "type": "float",  "units": "minutes", "downlink": true },
    "setUplinkType":                   { "type": "uint8",                    "downlink": true },
    "setWatchDogParams":               { "type": "object",                   "downlink": true },
    "SetHeatingStatus":                { "type": "uint8",                    "downlink": true },
    "SetDisplayRefreshPeriod":         { "type": "uint8",  "units": "minutes", "downlink": true },
    "SetTargetSendDelay":              { "type": "uint8",  "units": "seconds", "downlink": true },
    "SetAutomaticHeatingStatus":       { "type": "uint8",                    "downlink": true },
    "SetSensorMode":                   { "type": "uint8",                    "downlink": true },
    "SetPIRSensorStatus":              { "type": "uint8",                    "downlink": true },
    "SetPIRSensorSensitivity":         { "type": "uint8",                    "downlink": true },
    "SetCurrentTemperatureVisibility": { "type": "uint8",                    "downlink": true },
    "SetHumidityVisibility":           { "type": "uint8",                    "downlink": true },
    "SetLightIntensityVisibility":     { "type": "uint8",                    "downlink": true },
    "SetPIRInitPeriod":                { "type": "uint8",  "units": "seconds", "downlink": true },
    "SetPIRMeasurementPeriod":         { "type": "uint8",  "units": "seconds", "downlink": true },
    "SetPIRCheckPeriod":               { "type": "uint16", "units": "seconds", "downlink": true },
    "SetPIRBlindPeriod":               { "type": "uint16", "units": "seconds", "downlink": true },
    "SetTemperatureHysteresis":        { "type": "float",  "units": "celsius", "downlink": true },
    "SetTargetTemperaturePrecisely":   { "type": "float",  "units": "celsius", "downlink": true },
    "setTargetTemperatureStep":        { "type": "float",  "units": "celsius", "downlink": true },
    "setTempSensorCompensation":       { "type": "object",                   "downlink": true },
    "restartDevice":                   { "type": "bool",                     "downlink": true },
    "sendCustomHexCommand":            { "type": "string",                   "downlink": true }
  },

  "decoder": "mclimate-wt-codec.js",
  "encoder": "mclimate-wt-codec.js"
}
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.mclimate.eu/mclimate-lorawan-devices/devices/mclimate-wireless-thermostat/decoding-and-bacnet-object-mapping/bacnet-codec-and-definition-files/multitech.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.