TTN Smart Sensor (Sensecap)

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function decodeUplink (input) { const bytes = input['bytes'] const fport = parseInt(input['fPort']) const bytesString = bytes2HexString(bytes) const originMessage = bytesString.toLocaleUpperCase() const decoded = { valid: true, err: 0, payload: bytesString, messages: [] } if (fport === 199 || fport === 192) { decoded.messages.push({fport: fport, payload: bytesString}) return { data: decoded } } if (fport !== 5) { decoded.valid = false return { data: decoded } } let measurement = messageAnalyzed(originMessage) if (measurement.length === 0) { decoded.valid = false return { data: decoded } } for (let message of measurement) { if (message.length === 0) { continue } let elements = [] for (let element of message) { if (element.errorCode) { decoded.err = element.errorCode decoded.errMessage = element.error } else { elements.push(element) } } if (elements.length > 0) { decoded.messages.push(elements) } } // decoded.messages = measurement return { data: decoded } } function messageAnalyzed (messageValue) { try { let frames = unpack(messageValue) let measurementResultArray = [] for (let i = 0; i < frames.length; i++) { let item = frames[i] let dataId = item.dataId let dataValue = item.dataValue let measurementArray = deserialize(dataId, dataValue) measurementResultArray.push(measurementArray) } return measurementResultArray } catch (e) { return e.toString() } } function unpack (messageValue) { let frameArray = [] for (let i = 0; i < messageValue.length; i++) { let remainMessage = messageValue let dataId = remainMessage.substring(0, 2).toUpperCase() let dataValue let dataObj = {} let packageLen switch (dataId) { case '01': packageLen = 94 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '02': packageLen = 32 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '03': packageLen = 64 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '04': packageLen = 20 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '05': packageLen = 10 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '06': packageLen = 44 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '07': packageLen = 84 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '08': packageLen = 70 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '09': packageLen = 36 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '0A': packageLen = 76 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '0B': packageLen = 62 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '0C': packageLen = 2 if (remainMessage.length < packageLen) { return frameArray } break case '0D': packageLen = 10 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '0E': packageLen = getInt(remainMessage.substring(8, 10)) * 2 + 10 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, 8) + remainMessage.substring(10, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '0F': packageLen = 34 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '10': packageLen = 26 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break case '11': packageLen = 28 if (remainMessage.length < packageLen) { return frameArray } dataValue = remainMessage.substring(2, packageLen) messageValue = remainMessage.substring(packageLen) dataObj = { 'dataId': dataId, 'dataValue': dataValue } break default: return frameArray } if (dataValue.length < 2) { break } frameArray.push(dataObj) } return frameArray } function deserialize (dataId, dataValue) { let measurementArray = [] let eventList = [] let measurement = {} let collectTime = 0 let groupId = 0 let shardFlag = {} let payload = '' let result = [] let dataArr = [] switch (dataId) { case '01': measurementArray = getUpShortInfo(dataValue) measurementArray.push(...getMotionSetting(dataValue.substring(30, 40))) measurementArray.push(...getStaticSetting(dataValue.substring(40, 46))) measurementArray.push(...getShockSetting(dataValue.substring(46, 52))) measurementArray.push(...getTempSetting(dataValue.substring(52, 72))) measurementArray.push(...getLightSetting(dataValue.substring(72, 92))) break case '02': measurementArray = getUpShortInfo(dataValue) break case '03': measurementArray.push(...getMotionSetting(dataValue.substring(0, 10))) measurementArray.push(...getStaticSetting(dataValue.substring(10, 16))) measurementArray.push(...getShockSetting(dataValue.substring(16, 22))) measurementArray.push(...getTempSetting(dataValue.substring(22, 42))) measurementArray.push(...getLightSetting(dataValue.substring(42, 62))) break case '04': let interval = 0 let workMode = getInt(dataValue.substring(0, 2)) let heartbeatInterval = getMinsByMin(dataValue.substring(4, 8)) let periodicInterval = getMinsByMin(dataValue.substring(8, 12)) let eventInterval = getMinsByMin(dataValue.substring(12, 16)) switch (workMode) { case 0: interval = heartbeatInterval break case 1: interval = periodicInterval break case 2: interval = eventInterval break } measurementArray = [ {measurementId: '3940', type: 'Work Mode', measurementValue: workMode}, {measurementId: '3942', type: 'Heartbeat Interval', measurementValue: heartbeatInterval}, {measurementId: '3943', type: 'Periodic Interval', measurementValue: periodicInterval}, {measurementId: '3944', type: 'Event Interval', measurementValue: eventInterval}, {measurementId: '3941', type: 'SOS Mode', measurementValue: getSOSMode(dataValue.substring(16, 18))}, {measurementId: '3900', type: 'Uplink Interval', measurementValue: interval} ] break; case '05': measurementArray = [ {measurementId: '3000', type: 'Battery', measurementValue: getBattery(dataValue.substring(0, 2))}, {measurementId: '3940', type: 'Work Mode', measurementValue: getWorkingMode(dataValue.substring(2, 4))}, {measurementId: '3965', type: 'Positioning Strategy', measurementValue: getPositioningStrategy(dataValue.substring(4, 6))}, {measurementId: '3941', type: 'SOS Mode', measurementValue: getSOSMode(dataValue.substring(6, 8))} ] break case '06': collectTime = getUTCTimestamp(dataValue.substring(8, 16)) measurementArray = [ {measurementId: '4200', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))}, {measurementId: '4197', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Longitude', measurementValue: parseFloat(getSensorValue(dataValue.substring(16, 24), 1000000))}, {measurementId: '4198', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Latitude', measurementValue: parseFloat(getSensorValue(dataValue.substring(24, 32), 1000000))}, {measurementId: '4097', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Air Temperature', measurementValue: getSensorValue(dataValue.substring(32, 36), 10)}, {measurementId: '4199', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Light', measurementValue: getSensorValue(dataValue.substring(36, 40))}, {measurementId: '3000', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Battery', measurementValue: getBattery(dataValue.substring(40, 42))} ] break case '07': eventList = getEventStatus(dataValue.substring(0, 6)) collectTime = getUTCTimestamp(dataValue.substring(8, 16)) measurementArray = [ {measurementId: '4200', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))}, {measurementId: '5001', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Wi-Fi Scan', measurementValue: getMacAndRssiObj(dataValue.substring(16, 72))}, {measurementId: '4097', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Air Temperature', measurementValue: getSensorValue(dataValue.substring(72, 76), 10)}, {measurementId: '4199', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Light', measurementValue: getSensorValue(dataValue.substring(76, 80))}, {measurementId: '3000', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Battery', measurementValue: getBattery(dataValue.substring(80, 82))} ] break case '08': collectTime = getUTCTimestamp(dataValue.substring(8, 16)) measurementArray = [ {measurementId: '4200', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))}, {measurementId: '5002', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'BLE Scan', measurementValue: getMacAndRssiObj(dataValue.substring(16, 58))}, {measurementId: '4097', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Air Temperature', measurementValue: getSensorValue(dataValue.substring(58, 62), 10)}, {measurementId: '4199', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Light', measurementValue: getSensorValue(dataValue.substring(62, 66))}, {measurementId: '3000', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Battery', measurementValue: getBattery(dataValue.substring(66, 68))} ] break case '09': collectTime = getUTCTimestamp(dataValue.substring(8, 16)) measurementArray = [ {measurementId: '4200', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))}, {measurementId: '4197', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Longitude', measurementValue: parseFloat(getSensorValue(dataValue.substring(16, 24), 1000000))}, {measurementId: '4198', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Latitude', measurementValue: parseFloat(getSensorValue(dataValue.substring(24, 32), 1000000))}, {measurementId: '3000', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Battery', measurementValue: getBattery(dataValue.substring(32, 34))} ] break case '0A': collectTime = getUTCTimestamp(dataValue.substring(8, 16)) measurementArray = [ {measurementId: '4200', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))}, {measurementId: '5001', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Wi-Fi Scan', measurementValue: getMacAndRssiObj(dataValue.substring(16, 72))}, {measurementId: '3000', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Battery', measurementValue: getBattery(dataValue.substring(72, 74))} ] break case '0B': collectTime = getUTCTimestamp(dataValue.substring(8, 16)) measurementArray = [ {measurementId: '4200', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))}, {measurementId: '5002', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'BLE Scan', measurementValue: getMacAndRssiObj(dataValue.substring(16, 58))}, {measurementId: '3000', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), type: 'Battery', measurementValue: getBattery(dataValue.substring(58, 60))}, ] break case '0D': let errorCode = getInt(dataValue) let error = '' switch (errorCode) { case 1: error = 'FAILED TO OBTAIN THE UTC TIMESTAMP' break case 2: error = 'ALMANAC TOO OLD' break case 3: error = 'DOPPLER ERROR' break } measurementArray.push({errorCode, error}) break case '0E': shardFlag = getShardFlag(dataValue.substring(0, 2)) groupId = getInt(dataValue.substring(2, 6)) payload = dataValue.substring(6) measurement = { measurementId: '6152', groupId: groupId, index: shardFlag.index, count: shardFlag.count, type: 'gnss-ng payload', measurementValue: payload } measurementArray.push(measurement) break case '0F': collectTime = getUTCTimestamp(dataValue.substring(8, 16)) shardFlag = getShardFlag(dataValue.substring(26, 28)) groupId = getInt(dataValue.substring(28, 32)) measurementArray.push({ measurementId: '4200', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), groupId: groupId, index: shardFlag.index, count: shardFlag.count, type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6)) }) measurementArray.push({ measurementId: '4097', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), groupId: groupId, index: shardFlag.index, count: shardFlag.count, type: 'Air Temperature', measurementValue: '' + getSensorValue(dataValue.substring(16, 20), 10) }) measurementArray.push({ measurementId: '4199', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), groupId: groupId, index: shardFlag.index, count: shardFlag.count, type: 'Light', measurementValue: '' + getSensorValue(dataValue.substring(20, 24)) }) measurementArray.push({ measurementId: '3000', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), groupId: groupId, index: shardFlag.index, count: shardFlag.count, type: 'Battery', measurementValue: '' + getBattery(dataValue.substring(24, 26)) }) break case '10': collectTime = getUTCTimestamp(dataValue.substring(8, 16)) shardFlag = getShardFlag(dataValue.substring(18, 20)) groupId = getInt(dataValue.substring(20, 24)) measurementArray.push({ measurementId: '4200', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), groupId: groupId, index: shardFlag.index, count: shardFlag.count, type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6)) }) measurementArray.push({ measurementId: '3000', timestamp: collectTime, motionId: getMotionId(dataValue.substring(6, 8)), groupId: groupId, index: shardFlag.index, count: shardFlag.count, type: 'Battery', measurementValue: '' + getBattery(dataValue.substring(16, 18)) }) break case '11': collectTime = getUTCTimestamp(dataValue.substring(8, 16)) measurementArray.push({ measurementId: '3576', timestamp: collectTime, type: 'Positing Status', measurementValue: '' + getPositingStatus(dataValue.substring(0, 2)) }) measurementArray.push({ timestamp: collectTime, measurementId: '4200', type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(2, 8)) }) if (!isNaN(parseFloat(getSensorValue(dataValue.substring(16, 20), 10)))) { measurementArray.push({ timestamp: collectTime, measurementId: '4097', type: 'Air Temperature', measurementValue: '' + getSensorValue(dataValue.substring(16, 20), 10) }) } if (!isNaN(parseFloat(getSensorValue(dataValue.substring(20, 24))))) { measurementArray.push({ timestamp: collectTime, measurementId: '4199', type: 'Light', measurementValue: '' + getSensorValue(dataValue.substring(20, 24)) }) } measurementArray.push({ timestamp: collectTime, measurementId: '3000', type: 'Battery', measurementValue: '' + getBattery(dataValue.substring(24, 26)) }) break } return measurementArray } function getMotionId (str) { return getInt(str) } function getPositingStatus (str) { return getInt(str) } function getUpShortInfo (messageValue) { return [ { measurementId: '3000', type: 'Battery', measurementValue: getBattery(messageValue.substring(0, 2)) }, { measurementId: '3502', type: 'Firmware Version', measurementValue: getSoftVersion(messageValue.substring(2, 6)) }, { measurementId: '3001', type: 'Hardware Version', measurementValue: getHardVersion(messageValue.substring(6, 10)) }, { measurementId: '3940', type: 'Work Mode', measurementValue: getWorkingMode(messageValue.substring(10, 12)) }, { measurementId: '3965', type: 'Positioning Strategy', measurementValue: getPositioningStrategy(messageValue.substring(12, 14)) }, { measurementId: '3942', type: 'Heartbeat Interval', measurementValue: getMinsByMin(messageValue.substring(14, 18)) }, { measurementId: '3943', type: 'Periodic Interval', measurementValue: getMinsByMin(messageValue.substring(18, 22)) }, { measurementId: '3944', type: 'Event Interval', measurementValue: getMinsByMin(messageValue.substring(22, 26)) }, { measurementId: '3945', type: 'Sensor Enable', measurementValue: getInt(messageValue.substring(26, 28)) }, { measurementId: '3941', type: 'SOS Mode', measurementValue: getSOSMode(messageValue.substring(28, 30)) } ] } function getMotionSetting (str) { return [ {measurementId: '3946', type: 'Motion Enable', measurementValue: getInt(str.substring(0, 2))}, {measurementId: '3947', type: 'Any Motion Threshold', measurementValue: getSensorValue(str.substring(2, 6), 1)}, {measurementId: '3948', type: 'Motion Start Interval', measurementValue: getMinsByMin(str.substring(6, 10))}, ] } function getStaticSetting (str) { return [ {measurementId: '3949', type: 'Static Enable', measurementValue: getInt(str.substring(0, 2))}, {measurementId: '3950', type: 'Device Static Timeout', measurementValue: getMinsByMin(str.substring(2, 6))} ] } function getShockSetting (str) { return [ {measurementId: '3951', type: 'Shock Enable', measurementValue: getInt(str.substring(0, 2))}, {measurementId: '3952', type: 'Shock Threshold', measurementValue: getInt(str.substring(2, 6))} ] } function getTempSetting (str) { return [ {measurementId: '3953', type: 'Temp Enable', measurementValue: getInt(str.substring(0, 2))}, {measurementId: '3954', type: 'Event Temp Interval', measurementValue: getMinsByMin(str.substring(2, 6))}, {measurementId: '3955', type: 'Event Temp Sample Interval', measurementValue: getSecondsByInt(str.substring(6, 10))}, {measurementId: '3956', type: 'Temp ThMax', measurementValue: getSensorValue(str.substring(10, 14), 10)}, {measurementId: '3957', type: 'Temp ThMin', measurementValue: getSensorValue(str.substring(14, 18), 10)}, {measurementId: '3958', type: 'Temp Warning Type', measurementValue: getInt(str.substring(18, 20))} ] } function getLightSetting (str) { return [ {measurementId: '3959', type: 'Light Enable', measurementValue: getInt(str.substring(0, 2))}, {measurementId: '3960', type: 'Event Light Interval', measurementValue: getMinsByMin(str.substring(2, 6))}, {measurementId: '3961', type: 'Event Light Sample Interval', measurementValue: getSecondsByInt(str.substring(6, 10))}, {measurementId: '3962', type: 'Light ThMax', measurementValue: getSensorValue(str.substring(10, 14), 10)}, {measurementId: '3963', type: 'Light ThMin', measurementValue: getSensorValue(str.substring(14, 18), 10)}, {measurementId: '3964', type: 'Light Warning Type', measurementValue: getInt(str.substring(18, 20))} ] } function getShardFlag (str) { let bitStr = getByteArray(str) return { count: parseInt(bitStr.substring(0, 4), 2), index: parseInt(bitStr.substring(4), 2) } } function getBattery (batteryStr) { return loraWANV2DataFormat(batteryStr) } function getSoftVersion (softVersion) { return `${loraWANV2DataFormat(softVersion.substring(0, 2))}.${loraWANV2DataFormat(softVersion.substring(2, 4))}` } function getHardVersion (hardVersion) { return `${loraWANV2DataFormat(hardVersion.substring(0, 2))}.${loraWANV2DataFormat(hardVersion.substring(2, 4))}` } function getSecondsByInt (str) { return getInt(str) } function getMinsByMin (str) { return getInt(str) } function getSensorValue (str, dig) { if (str === '8000') { return null } else { return loraWANV2DataFormat(str, dig) } } function bytes2HexString (arrBytes) { var str = '' for (var i = 0; i < arrBytes.length; i++) { var tmp var num = arrBytes[i] if (num < 0) { tmp = (255 + num + 1).toString(16) } else { tmp = num.toString(16) } if (tmp.length === 1) { tmp = '0' + tmp } str += tmp } return str } function loraWANV2DataFormat (str, divisor = 1) { let strReverse = bigEndianTransform(str) let str2 = toBinary(strReverse) if (str2.substring(0, 1) === '1') { let arr = str2.split('') let reverseArr = arr.map((item) => { if (parseInt(item) === 1) { return 0 } else { return 1 } }) str2 = parseInt(reverseArr.join(''), 2) + 1 return '-' + str2 / divisor } return parseInt(str2, 2) / divisor } function bigEndianTransform (data) { let dataArray = [] for (let i = 0; i < data.length; i += 2) { dataArray.push(data.substring(i, i + 2)) } return dataArray } function toBinary (arr) { let binaryData = arr.map((item) => { let data = parseInt(item, 16) .toString(2) let dataLength = data.length if (data.length !== 8) { for (let i = 0; i < 8 - dataLength; i++) { data = `0` + data } } return data }) return binaryData.toString().replace(/,/g, '') } function getSOSMode (str) { return loraWANV2DataFormat(str) } function getMacAndRssiObj (pair) { let pairs = [] if (pair.length % 14 === 0) { for (let i = 0; i < pair.length; i += 14) { let mac = getMacAddress(pair.substring(i, i + 12)) if (mac) { let rssi = getInt8RSSI(pair.substring(i + 12, i + 14)) pairs.push({mac: mac, rssi: rssi}) } else { continue } } } return pairs } function getMacAddress (str) { if (str.toLowerCase() === 'ffffffffffff') { return null } let macArr = [] for (let i = 1; i < str.length; i++) { if (i % 2 === 1) { macArr.push(str.substring(i - 1, i + 1)) } } let mac = '' for (let i = 0; i < macArr.length; i++) { mac = mac + macArr[i] if (i < macArr.length - 1) { mac = mac + ':' } } return mac } function getInt8RSSI (str) { return loraWANV2DataFormat(str) } function getInt (str) { return parseInt(str, 16) } function getEventStatus (str) { // return getInt(str) let bitStr = getByteArray(str) let bitArr = [] for (let i = 0; i < bitStr.length; i++) { bitArr[i] = bitStr.substring(i, i + 1) } bitArr = bitArr.reverse() let event = [] for (let i = 0; i < bitArr.length; i++) { if (bitArr[i] !== '1') { continue } switch (i){ case 0: event.push({id:1, eventName:"Start moving event."}) break case 1: event.push({id:2, eventName:"End movement event."}) break case 2: event.push({id:3, eventName:"Motionless event."}) break case 3: event.push({id:4, eventName:"Shock event."}) break case 4: event.push({id:5, eventName:"Temperature event."}) break case 5: event.push({id:6, eventName:"Light event."}) break case 6: event.push({id:7, eventName:"SOS event."}) break case 7: event.push({id:8, eventName:"Press once event."}) break } } return event } function getByteArray (str) { let bytes = [] for (let i = 0; i < str.length; i += 2) { bytes.push(str.substring(i, i + 2)) } return toBinary(bytes) } function getWorkingMode (workingMode) { return getInt(workingMode) } function getPositioningStrategy (strategy) { return getInt(strategy) } function getUTCTimestamp(str){ return parseInt(loraWANV2PositiveDataFormat(str)) * 1000 } function loraWANV2PositiveDataFormat (str, divisor = 1) { let strReverse = bigEndianTransform(str) let str2 = toBinary(strReverse) return parseInt(str2, 2) / divisor }