Decoder

Follows the LoRA payload decoder that transforms received bytes into SenML-formatted message ready to be processed by insigh.io backend.

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/*
/$$                     /$$           /$$           /$$
|__/                    |__/          | $$          |__/
/$$ /$$$$$$$   /$$$$$$$ /$$  /$$$$$$ | $$$$$$$      /$$  /$$$$$$
| $$| $$__  $$ /$$_____/| $$ /$$__  $$| $$__  $$    | $$ /$$__  $$
| $$| $$  \ $$|  $$$$$$ | $$| $$  \ $$| $$  \ $$    | $$| $$  \ $$
| $$| $$  | $$ \____  $$| $$| $$  | $$| $$  | $$    | $$| $$  | $$
| $$| $$  | $$ /$$$$$$$/| $$|  $$$$$$$| $$  | $$ /$$| $$|  $$$$$$/
|__/|__/  |__/|_______/ |__/ \____  $$|__/  |__/|__/|__/ \______/
                            /$$  \ $$
                            |  $$$$$$/
                            \______/
LoRA/Satellite payload decoder for insigh.io firmware (v4.0 and above)
*/
var LOCATION_DEFAULT = 0x00
var LOCATION_INTERNAL_BOARD = 0x10
var LOCATION_INTERNAL_CPU = 0x11
var LOCATION_I2C = 0x20
var LOCATION_A_P1 = 0x30
var LOCATION_A_P2 = 0x31
var LOCATION_AD_P1 = 0x40
var LOCATION_AD_P2 = 0x41
var LOCATION_AD_P3 = 0x42
var LOCATION_AD_P4 = 0x43
var LOCATION_SDI12 = 0x50
var LOCATION_4_20 = 0x60
var LOCATION_MODEM = 0x70
var LOCATION_GPS = 0x71
var LOCATION_WEATHER_STATION = 0x80
var LOCATION_RAIN_GAUGE = 0x81
var LOCATION_SOLAR_SENSOR = 0x82
var LOCATION_PULSE_COUNTER = 0x83
var LOCATION_WEATHER_STATION_WIND = 0x84
var LOCATION_SDI12_PORT_1 = 0x90
var LOCATION_SDI12_PORT_2 = 0xa0

var TYPE_DEVICE_ID = 0x01
var TYPE_RESET_CAUSE = 0x02
var TYPE_UPTIME = 0x03
var TYPE_MEM_ALLOC = 0x04
var TYPE_MEM_FREE = 0x05
var TYPE_CURRENT = 0x07
var TYPE_VBATT = 0x08
var TYPE_LIGHT_LUX = 0x10
var TYPE_TEMPERATURE_CEL = 0x11
var TYPE_HUMIDITY = 0x12
var TYPE_CO2 = 0x13
var TYPE_PRESSURE = 0x14
var TYPE_GAS = 0x15
var TYPE_VOLTAGE = 0x16
var TYPE_VWC = 0x17
var TYPE_REL_PERM = 0x18
var TYPE_SOIL_EC = 0x19
var TYPE_MILLIMETER = 0x1a
var TYPE_WATTS_PER_SQUARE_METER = 0x1b
var TYPE_GRAMS_OF_WATER_VAPOUR_PER_CUBIC_METRE_OF_AIR = 0x1c
var TYPE_ACTUAL_EVAPOTRANSPIRATION_MM = 0x1d
var TYPE_LATENT_ENERGY_FLUX = 0x1e
var TYPE_HEAT_FLUX = 0x1f
var TYPE_PORE_WATER_CONDUCT = 0x20
var TYPE_SAP_FLOW = 0x21
var TYPE_HEAT_VELOCITY = 0x22
var TYPE_LOG_RATIO = 0x23
var TYPE_VAPOR_PRESSURE_DEFICIT = 0x24
var TYPE_ATMOSPHERIC_PRESSURE = 0x25
var TYPE_TEMPERATURE_FAH = 0x26
var TYPE_DEVIATION = 0x27
var TYPE_RADIATION = 0x28
var TYPE_COUNT = 0x29
var TYPE_HEIGHT = 0x2a
var TYPE_PERIOD = 0x2b
var TYPE_NOISE = 0x2c
var TYPE_DIRECTION_DEG = 0x2d
var TYPE_DIRECTION_ID = 0x2e
var TYPE_SPEED = 0x2f
var TYPE_FORMULA = 0x30
var TYPE_EDGE_COUNT = 0x40
var TYPE_MODBUS_VALUE = 0x50
var TYPE_CHG_STAT = 0x60
var TYPE_IBAT = 0x61
var TYPE_IBUS = 0x62
var TYPE_IS_CHARGING = 0x63
var TYPE_TIME_DIFF = 0x64
var TYPE_ULP_HEARTBEAT = 0x65
var TYPE_VBUS = 0x66
var TYPE_VSYS = 0x67
var TYPE_PERCENTAGE = 0x68
var TYPE_MILLISECONDS = 0x69
var TYPE_PARTS_PER_MILLION = 0x6a
var TYPE_UNIX_TIME = 0x6b
var TYPE_LORA_JOIN_DUR = 0xc1
var TYPE_GPS_HDOP = 0xd0
var TYPE_GPS_LAT = 0xd1
var TYPE_GPS_LON = 0xd2
var TYPE_GENERIC = 0xe0
var TYPE_GENERIC_MAX = 0xff
var typeMap = {}

function TypeSetting(name, unit, byteLength, divider, isSigned, valueType) {
  return { name, unit, byteLength, divider, isSigned, valueType: valueType || "int" }
}

function init() {
  typeMap[TYPE_ACTUAL_EVAPOTRANSPIRATION_MM] = TypeSetting("et", "mm", 2, 1000, false)
  typeMap[TYPE_ATMOSPHERIC_PRESSURE] = TypeSetting("pa", "hPa", 2, 10, false)
  typeMap[TYPE_CHG_STAT] = TypeSetting("chg_stat", "", 1, 1, false)
  typeMap[TYPE_CO2] = TypeSetting("co2", "ppm", 2, 1, false)
  typeMap[TYPE_COUNT] = TypeSetting("count", "count", 2, 10, false)
  typeMap[TYPE_CURRENT] = TypeSetting("current", "mA", 2, 100, false)
  typeMap[TYPE_DEVIATION] = TypeSetting("deviation", "", 2, 100, true)
  typeMap[TYPE_DEVICE_ID] = TypeSetting("device_id", "", 1, 1, false)
  typeMap[TYPE_DIRECTION_DEG] = TypeSetting("direction_d", "deg", 2, 10, false)
  typeMap[TYPE_DIRECTION_ID] = TypeSetting("direction", "", 1, 1, false)
  typeMap[TYPE_UNIX_TIME] = TypeSetting("dt", "s", 4, 1, false)
  typeMap[TYPE_EDGE_COUNT] = TypeSetting("edge_count", "count", 2, 1, false)
  typeMap[TYPE_FORMULA] = TypeSetting("formula", "", 4, 100000, true)
  typeMap[TYPE_GAS] = TypeSetting("gas", "Ohm", 2, 1, false)
  typeMap[TYPE_GENERIC] = TypeSetting("generic", "", 4, 100, true)
  typeMap[TYPE_GPS_HDOP] = TypeSetting("hdop", "", 1, 10, false)
  typeMap[TYPE_GPS_LAT] = TypeSetting("lat", "", 4, 100000, true)
  typeMap[TYPE_GPS_LON] = TypeSetting("lon", "", 4, 100000, true)
  typeMap[TYPE_GRAMS_OF_WATER_VAPOUR_PER_CUBIC_METRE_OF_AIR] = TypeSetting("water_vapour_sq_air", "g.m3", 2, 1, false)
  typeMap[TYPE_HEAT_FLUX] = TypeSetting("h", "W/m2", 2, 10, false)
  typeMap[TYPE_HEAT_VELOCITY] = TypeSetting("hv", "cm/h", 2, 100, false)
  typeMap[TYPE_HEIGHT] = TypeSetting("height", "mm", 2, 10, false)
  typeMap[TYPE_HUMIDITY] = TypeSetting("humidity", "%RH", 2, 100, false)
  typeMap[TYPE_IBAT] = TypeSetting("ibat", "mA", 2, 1, true)
  typeMap[TYPE_IBUS] = TypeSetting("ibus", "mA", 2, 1, true)
  typeMap[TYPE_IS_CHARGING] = TypeSetting("is_charging", "", 1, 1, false)
  typeMap[TYPE_LATENT_ENERGY_FLUX] = TypeSetting("le", "W/m2", 2, 10, false)
  typeMap[TYPE_LIGHT_LUX] = TypeSetting("light_lux", "lx", 2, 1, false)
  typeMap[TYPE_LOG_RATIO] = TypeSetting("log_rt", "", 4, 100000, true)
  typeMap[TYPE_LORA_JOIN_DUR] = TypeSetting("lora_join_dur", "ms", 2, 1, false)
  typeMap[TYPE_MEM_ALLOC] = TypeSetting("mem_alloc", "B", 4, 1, false)
  typeMap[TYPE_MEM_FREE] = TypeSetting("mem_free", "B", 4, 1, false)
  typeMap[TYPE_MILLIMETER] = TypeSetting("millimeter", "mm", 2, 1, false) // deprecated
  typeMap[TYPE_MILLISECONDS] = TypeSetting("milliseconds", "ms", 4, 1, false)
  typeMap[TYPE_MODBUS_VALUE] = TypeSetting("value", "", 4, 1, false, "float")
  typeMap[TYPE_NOISE] = TypeSetting("noise", "db", 2, 10, false)
  typeMap[TYPE_PARTS_PER_MILLION] = TypeSetting("ppm", "ppm", 4, 1, false)
  typeMap[TYPE_PERCENTAGE] = TypeSetting("percentage", "%", 4, 100, false)
  typeMap[TYPE_PERIOD] = TypeSetting("period", "s", 2, 10, false)
  typeMap[TYPE_PORE_WATER_CONDUCT] = TypeSetting("pore_water_conduct", "uS/cm", 2, 100, false)
  typeMap[TYPE_PRESSURE] = TypeSetting("pressure", "hPa", 4, 1, true)
  typeMap[TYPE_RADIATION] = TypeSetting("radiation", "", 2, 1, false)
  typeMap[TYPE_REL_PERM] = TypeSetting("rel_perm", "", 2, 100, false)
  typeMap[TYPE_RESET_CAUSE] = TypeSetting("reset_cause", "", 1, 1, false)
  typeMap[TYPE_SAP_FLOW] = TypeSetting("sap_flow", "l/h", 2, 100, false)
  typeMap[TYPE_SOIL_EC] = TypeSetting("soil_ec", "uS/cm", 2, 1, false)
  typeMap[TYPE_SPEED] = TypeSetting("speed", "m/s", 2, 100, true)
  typeMap[TYPE_TEMPERATURE_CEL] = TypeSetting("temp", "Cel", 2, 100, true)
  typeMap[TYPE_TEMPERATURE_FAH] = TypeSetting("temp", "f", 2, 100, true)
  typeMap[TYPE_TIME_DIFF] = TypeSetting("time_diff", "s", 2, 1, false)
  typeMap[TYPE_ULP_HEARTBEAT] = TypeSetting("ulp_heartbeat", "count", 4, 1, false)
  typeMap[TYPE_UPTIME] = TypeSetting("uptime", "ms", 4, 1, false)
  typeMap[TYPE_VAPOR_PRESSURE_DEFICIT] = TypeSetting("vpd", "hPa", 2, 10, false)
  typeMap[TYPE_VBATT] = TypeSetting("vbatt", "mV", 2, 1, false)
  typeMap[TYPE_VBUS] = TypeSetting("vbus", "mV", 2, 1, false)
  typeMap[TYPE_VOLTAGE] = TypeSetting("voltage", "mV", 2, 1, false)
  typeMap[TYPE_VSYS] = TypeSetting("vsys", "mV", 2, 1, false)
  typeMap[TYPE_VWC] = TypeSetting("vwc", "", 2, 100, false)
  typeMap[TYPE_WATTS_PER_SQUARE_METER] = TypeSetting("wpsqm", "W/m2", 2, 1, false)
}
function uint32toInt32(bin) {
  var num = bin >>> 0
  if (num > 0x7fffffff) num = num - 0x100000000
  return num
}
function uint16toInt16(bin) {
  var num = bin & 0xffff
  if (0x8000 & num) num = num - 0x010000
  return num
}
function uint8toInt8(bin) {
  var num = bin & 0xffff
  if (0x80 & num) num = num - 0x0100
  return num
}
function bytesToHex(byteArray, from, to) {
  var s = ""
  for (var i = from; i < to; ++i) {
    s += ("0" + (byteArray[i] & 0xff).toString(16)).slice(-2)
  }
  return s
}
function getTypeName(typeId) {
  var typeInfo = typeMap[typeId]
  if (typeInfo !== undefined) return typeInfo.name
  if (typeId >= TYPE_GENERIC && typeId <= TYPE_GENERIC_MAX) {
    typeInfo = { ...typeMap[TYPE_GENERIC] }
    typeInfo.name = typeInfo.name + "_" + (typeId & 0x0f)
  }
  if (typeInfo === undefined) return ""
  return typeInfo.name
}
function getTypeUnit(typeId) {
  var typeInfo = typeMap[typeId]
  if (typeInfo !== undefined) return typeInfo.unit
  if (typeId >= TYPE_GENERIC && typeId <= TYPE_GENERIC_MAX) {
    //return GENERIC_UNIT_BY_SUBTYPE[typeId & 0x0f] || ""
    return ""
  }
  return ""
}
function getLocationName(locationId) {
  var mainLocation = locationId & 0xf0
  var subLocation = locationId & 0x0f
  switch (mainLocation) {
    case LOCATION_INTERNAL_BOARD:
      switch (subLocation) {
        case LOCATION_INTERNAL_BOARD & 0x0f:
          return "board"
        case LOCATION_INTERNAL_CPU & 0x0f:
          return "cpu"
        default:
          return "internal"
      }
    case LOCATION_I2C:
      switch (subLocation) {
        case 0x00:
          return "tsl2561"
        case 0x01:
          return "si7021"
        case 0x02:
          return "scd30"
        case 0x03:
          return "bme680"
        case 0x04:
          return "sht20"
        case 0x05:
          return "sht40"
        case 0x06:
          return "sunrise"
        default:
          return "i2c"
      }
    case LOCATION_A_P1:
      switch (subLocation) {
        case LOCATION_A_P1 & 0x0f:
          return "a_1"
        case LOCATION_A_P2 & 0x0f:
          return "a_2"
        default:
          return "a"
      }
    case LOCATION_AD_P1:
      switch (subLocation) {
        case LOCATION_AD_P1 & 0x0f:
          return "adc_1"
        case LOCATION_AD_P2 & 0x0f:
          return "adc_2"
        case LOCATION_AD_P3 & 0x0f:
          return "adc_3"
        case LOCATION_AD_P4 & 0x0f:
          return "adc_4"
        default:
          return "adc"
      }
    case LOCATION_4_20:
      return "4_20_" + subLocation
    case LOCATION_SDI12:
      return "sdi12_" + subLocation
    case LOCATION_SDI12_PORT_1:
      return "sdi12_" + subLocation + "_1"
    case LOCATION_SDI12_PORT_2:
      return "sdi12_" + subLocation + "_2"
    case LOCATION_MODEM:
      switch (subLocation) {
        case LOCATION_GPS & 0x0f:
          return "gps"
        default:
          return "modem"
      }
    case LOCATION_WEATHER_STATION:
      switch (subLocation) {
        case LOCATION_PULSE_COUNTER & 0x0f:
          return "pcnt"
        case LOCATION_RAIN_GAUGE & 0x0f:
          return "rain_gauge"
        case LOCATION_SOLAR_SENSOR & 0x0f:
          return "solar"
        case LOCATION_WEATHER_STATION_WIND & 0x0f:
          return "wth_wind"
        default:
          return "wth"
      }
    default:
      //console.log("location not decoded: ", locationId, ", ", mainLocation, ", ", subLocation)
      return "generic"
  }
}

function base64ToArrayBuffer(base64) {
  //console.log("Decoding ", base64)
  var binary_string = atob(base64)
  var len = binary_string.length
  var bytes = new Uint8Array(len)
  for (var i = 0; i < len; i++) {
    bytes[i] = binary_string.charCodeAt(i)
  }
  return new Uint8Array(bytes.buffer)
}
function DecodeInsighioPackage(bytes, convertBytesFromBase64 = true) {
  try {
    init()
    var senml = []
    var nameDict = {}
    if (convertBytesFromBase64) bytes = base64ToArrayBuffer(bytes)
    var i = 6
    while (i < bytes.length) {
      var typeId = bytes[i++]
      var locationId = bytes[i++]
      var original_name = ""

      if (typeId === TYPE_MODBUS_VALUE) {
        original_name = "modbus_" + locationId.toString() + "_value"
      } else original_name = getLocationName(locationId) + "_" + getTypeName(typeId)
      var name = original_name
      var obj = { n: name, u: getTypeUnit(typeId) }
      //console.log("typeid: ", typeId.toString(16), ", locationId: ", locationId.toString(16))
      //console.log("\toriginal_name: ", original_name, ", name:", name, ", obj:", obj)
      var typeSettings = typeMap[typeId]
      if (!typeSettings && typeId >= TYPE_GENERIC && typeId <= TYPE_GENERIC_MAX) typeSettings = typeMap[TYPE_GENERIC]
      if (typeSettings) {
        //console.log("\tusing setting: ", typeSettings)
        if (typeSettings.valueType === "float" && typeSettings.byteLength === 4) {
          var floatView = new DataView(new ArrayBuffer(4))
          floatView.setUint8(0, bytes[i++])
          floatView.setUint8(1, bytes[i++])
          floatView.setUint8(2, bytes[i++])
          floatView.setUint8(3, bytes[i++])
          obj.v = floatView.getFloat32(0, false)
        } else {
          obj.v = 0
          // extract value
          for (var j = 1; j <= typeSettings.byteLength; j++) {
            var places = (typeSettings.byteLength - j) * 8
            if (places) obj.v |= bytes[i++] << places
            else obj.v |= bytes[i++]
          }
          // apply signedness
          if (typeSettings.isSigned) {
            switch (typeSettings.byteLength) {
              case 1:
                obj.v = uint8toInt8(obj.v)
                break
              case 2:
                obj.v = uint16toInt16(obj.v)
                break
              case 4:
                obj.v = uint32toInt32(obj.v)
                break
              default:
                break
            }
          }
          // apply divider
          obj.v /= typeSettings.divider
        }
      }
      if (obj.v === undefined) obj.v = 0
      nameDict[obj.n] = true
      senml.push(obj)
      //console.log("\n")
    }
    if (senml.length > 0) {
      senml[0].bn = bytesToHex(bytes, 0, 6) + "-"
    }
  } catch (err) {
    //console.log("something went wrong", err)
    return { e: err.stack }
  }

  // at the end, look up all the names and make sure they are unique, if not, append _1, _2, etc.
  var usedNames = {}
  senml.forEach((element) => {
    if (!element || !element.n) return

    const baseName = element.n
    if (!usedNames[baseName]) {
      usedNames[baseName] = {
        maxCounter: 1,
        count: 0,
      }
    } else usedNames[baseName].maxCounter = usedNames[baseName].maxCounter + 1
  })

  let processedSenml = []
  senml.forEach((element) => {
    if (!element || !element.n) return

    let baseName = element.n
    const nameInfo = usedNames[baseName]
    if (nameInfo.maxCounter === 1) {
      //if there is already a name with _1, then we need to rename this one to _0 to follow the numbering sequence
      if (usedNames[baseName + "_1"]) element.n = element.n + "_0"
      processedSenml.push(element)
    } else {
      const newName = `${baseName}_${nameInfo.count + 1}`
      processedSenml.push({ ...element, n: newName })
      usedNames[baseName].count = nameInfo.count + 1
    }
  })

  return processedSenml
}

function populateSignalQuality(payload, senmlMessage) {
  var snr = -141
  var spreadingFactor = -1
  try {
    if (payload.rxInfo && payload.rxInfo[0]) {
      if (payload.rxInfo[0].rssi !== undefined) senmlMessage.push({ n: "modem_rssi", u: "dBm", v: payload.rxInfo[0].rssi })
      if (payload.rxInfo[0].snr !== undefined) {
        senmlMessage.push({ n: "modem_snr", u: "db", v: payload.rxInfo[0].snr })
        snr = payload.rxInfo[0].snr
      }
    }

    //calculate high level signal quality
    if (payload.txInfo) {
      if (payload.txInfo.frequency) senmlMessage.push({ n: "frequency", v: payload.txInfo.frequency })

      if (payload.txInfo.modulation && payload.txInfo.modulation.lora) {
        if (payload.txInfo.modulation.lora.spreadingFactor) {
          spreadingFactor = payload.txInfo.modulation.lora.spreadingFactor
          senmlMessage.push({ n: "modem_spreading_factor", v: spreadingFactor })
        }
        if (payload.txInfo.modulation.lora.bandwidth) {
          senmlMessage.push({
            n: "bandwidth",
            v: payload.txInfo.modulation.lora.bandwidth,
          })
        }
      }
    }

    if (spreadingFactor < 6 || spreadingFactor > 12 || snr === -141) return

    var snrStepPerSpreadingFactor = -2.5
    var snrOfSpreadingFactor6 = -5
    var loraSnrLowest = snrOfSpreadingFactor6 + (spreadingFactor - 6) * snrStepPerSpreadingFactor

    //snr range loraSnrLowest dbm -> +10dbm
    var qualitySteps = (10 - loraSnrLowest) / 5

    var signalQualityIndex = Math.floor((snr - loraSnrLowest) / qualitySteps)
    if (signalQualityIndex <= 0) senmlMessage.push({ n: "modem_signal_quality_index", v: 0 })
    else if (signalQualityIndex > 4) senmlMessage.push({ n: "modem_signal_quality_index", v: 4 })
    else senmlMessage.push({ n: "modem_signal_quality_index", v: signalQualityIndex })
  } catch (e) {
    console.log(e)
  }
}

// here you can modify the names of the records, for example to make them more readable or to match your own naming conventions
function processRecords(senmlMessage) {
  senmlMessage.forEach((element) => {
    if (element.n === "_original_name") {
      element.n = "_new_name"
    } else if (element.n === "_original_name_2") {
      element.n = "_new_name_2"
      element.u = "ms"
      element.v = element.v * 100
    }
  })
}

// Called from ChirpStack / LoRaServer
//https://www.chirpstack.io/application-server/use/device-profiles/
function Decode(fPort, bytes, variables) {
  return DecodeInsighioPackage(bytes, true)
}

// Called from TheThingsNetwork
function decodeUplink(input) {
  return {
    data: {
      bytes: DecodeInsighioPackage(input.bytes, false),
    },
  }
}

function decode(payload) {
  let deviceId = payload.deviceInfo.devEui
  let senmlMessage = []

  let decoded = DecodeInsighioPackage(payload.data, true)

  processRecords(decoded)

  senmlMessage = senmlMessage.concat(decoded)

  populateSignalQuality(payload, senmlMessage)

  if (senmlMessage.length > 0) {
    senmlMessage[0].bt = Date.parse(payload.time) / 10 ** 3
    senmlMessage[0].bn = deviceId + "-"
  }

  return { deviceId: deviceId, message: senmlMessage }
}

function test() {
  let data =
    "7c2c67ea3038205100001851006e1951000011510b1817510000164002e1164102ca164202de1643000012100eba11100bd6601000037100000b656110ff9862100000631000c17014c0295247681952000111520b2c68520000008c68520000008768520000012a508900000000298300002983000030830000000030830000000040830000408300002b8300002b8300000210016410000f6510000048fe0310000151cf08100f4e6610000067100f52"

  //parse data and split into array of bytes
  data = data.match(/.{1,2}/g).map((byte) => parseInt(byte, 16))

  console.log("Decoded message:", DecodeInsighioPackage(data, false))

  //expected: output
  //Decoded message: [
  //   {
  //     n: 'sdi12_1_pore_water_conduct',
  //     u: 'uS/cm',
  //     v: 0,
  //     bn: '7c2c67ea3038-'
  //   },
  //   { n: 'sdi12_1_rel_perm', u: '', v: 1.1 },
  //   { n: 'sdi12_1_soil_ec', u: 'uS/cm', v: 0 },
  //   { n: 'sdi12_1_temp', u: 'Cel', v: 28.4 },
  //   { n: 'sdi12_1_vwc', u: '', v: 0 },
  //   { n: 'adc_1_voltage', u: 'mV', v: 737 },
  //   { n: 'adc_2_voltage', u: 'mV', v: 714 },
  //   { n: 'adc_3_voltage', u: 'mV', v: 734 },
  //   { n: 'adc_4_voltage', u: 'mV', v: 0 },
  //   { n: 'board_humidity', u: '%RH', v: 37.7 },
  //   { n: 'board_temp', u: 'Cel', v: 30.3 },
  //   { n: 'board_chg_stat', u: '', v: 0 },
  //   { n: 'gps_uptime', u: 'ms', v: 2917 },
  //   { n: 'board_ibat', u: 'mA', v: -104 },
  //   { n: 'board_ibus', u: 'mA', v: 0 },
  //   { n: 'board_is_charging', u: '', v: 0 },
  //   { n: 'modem_lora_join_dur', u: 'ms', v: 5312 },
  //   { n: 'sdi12_2_count', u: 'count', v: 1828 },
  //   { n: 'sdi12_2_soil_ec', u: 'uS/cm', v: 1 },
  //   { n: 'sdi12_2_temp', u: 'Cel', v: 28.6 },
  //   { n: 'sdi12_2_percentage_1', u: '%', v: 1.4 },
  //   { n: 'sdi12_2_percentage_2', u: '%', v: 1.35 },
  //   { n: 'sdi12_2_percentage_3', u: '%', v: 2.98 },
  //   { n: 'modbus_137_value', u: '', v: 0 },
  //   { n: 'pcnt_count_1', u: 'count', v: 0 },
  //   { n: 'pcnt_count_2', u: 'count', v: 0 },
  //   { n: 'pcnt_formula_1', u: '', v: 0 },
  //   { n: 'pcnt_formula_2', u: '', v: 0 },
  //   { n: 'pcnt_edge_count_1', u: 'count', v: 0 },
  //   { n: 'pcnt_edge_count_2', u: 'count', v: 0 },
  //   { n: 'pcnt_period_1', u: 's', v: 0 },
  //   { n: 'pcnt_period_2', u: 's', v: 0 },
  //   { n: 'board_reset_cause', u: '', v: 1 },
  //   { n: 'board_time_diff', u: 's', v: 15 },
  //   { n: 'board_ulp_heartbeat', u: 'count', v: 18686 },
  //   { n: 'board_uptime', u: 'ms', v: 86479 },
  //   { n: 'board_vbatt', u: 'mV', v: 3918 },
  //   { n: 'board_vbus', u: 'mV', v: 0 },
  //   { n: 'board_vsys', u: 'mV', v: 3922 }
  // ]
}