TTN Smart Sensor (Mclimate)

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function decodeUplink(input) { try{ var bytes = input.bytes; var data = {}; const toBool = value => value == '1'; var calculateTemperature = function (rawData){return (rawData - 400) / 10}; var calculateHumidity = function(rawData){return (rawData * 100) / 256}; var decbin = function (number) { if (number < 0) { number = 0xFFFFFFFF + number + 1 } number = number.toString(2); return "00000000".substr(number.length) + number; } function handleKeepalive(bytes, data){ var tempHex = '0' + bytes[1].toString(16) + bytes[2].toString(16); var tempDec = parseInt(tempHex, 16); var temperatureValue = calculateTemperature(tempDec); var humidityValue = calculateHumidity(bytes[3]); var temperature = temperatureValue; var humidity = humidityValue; var batteryVoltage = parseInt(`${decbin(bytes[4])}${decbin(bytes[5])}`, 2)/1000; var targetTemperature, powerSourceStatus, lux, pir; if(bytes[0] == 1){ targetTemperature = bytes[6]; powerSourceStatus = bytes[7]; lux = parseInt('0' + bytes[8].toString(16) + bytes[9].toString(16), 16); pir = toBool(bytes[10]); }else{ targetTemperature = parseInt(`${decbin(bytes[6])}${decbin(bytes[7])}`, 2)/10; powerSourceStatus = bytes[8]; lux = parseInt('0' + bytes[9].toString(16) + bytes[10].toString(16), 16); pir = toBool(bytes[11]); } data.sensorTemperature = Number(temperature.toFixed(2)); data.relativeHumidity = Number(humidity.toFixed(2)); data.batteryVoltage = Number(batteryVoltage.toFixed(3)); 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 deviceKeepAlive = 5; var wdpC = commands[i + 1] == '00' ? false : commands[i + 1] * deviceKeepAlive + 7; 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(`0x${commands[i + 1]}${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(`0x${commands[i + 1]}${commands[i + 2]}`, 16)/10; } break; case 'a0': { command_len = 4; var fuota_address = parseInt(`${commands[i + 1]}${commands[i + 2]}${commands[i + 3]}${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_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 = 12; var potentialKeepAlive = bytes.slice(-12/2); if(potentialKeepAlive[0] == "81") keepaliveLength = 12; data = handleResponse(bytes,data, keepaliveLength); bytes = bytes.slice(-keepaliveLength); data = handleKeepalive(bytes, data); } return {data: data}; } catch (e) { throw new Error('Unhandled data'); } }