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LoRaWAN Commands and Responses

The device has LoRaWAN 1.0.2 certification. The device uses the LoRaWAN Firmware Management Protocol Specification TS006-1.0.0. These specifications control how the device reports the battery level and the version data.

Device Status Request / Response

The network server sends a device status request (DevStatusReq) two times in each 24 hours. MQcentral uses the answer to fill the battery life field.

The raw value is also in the Output Profile in the BatteryLevel field. This value is available when an uplink contains the DevStatusAns.

To change the raw value to a percent, divide the raw value by 2.54.

Network server sends DevStatusReq two times in each 24 hours

Device sends DevStatusAns in an uplink

MQcentral fills the battery life field

Output Profile shows the raw BatteryLevel value

Divide BatteryLevel by 2.54 to get a percent

Example: Output Profile with BatteryLevel

json
{
  "Time": "2022-06-21T17:18:22.524Z",
  "DecoderType": "",
  "DevEUI": "27D5223AAB819B9A",
  "DevAddr": "45810E29",
  "FPort": "1",
  "FCntUp": "31",
  "ADRbit": "1",
  "ACKbit": "",
  "MessageType": "4",
  "FCntDn": "30",
  "payload_hex": "00fc",
  "decoded_payload": {
    "RawData": "00fc"
  },
  "mic_hex": "47c0bdf0",
  "GatewayRSSI": "-85.000000",
  "GatewaySNR": "8.750000",
  "SpreadingFactor": "7",
  "SubBand": "G0",
  "Channel": "LC1",
  "GatewayCount": "1",
  "GatewayID": "B43E13B9",
  "Late": "0",
  "GatewayLAT": "0.000000",
  "GatewayLON": "0.000000",
  "BatteryLevel": "254",
  "GatewayList": [
    {
      "GatewayID": "B43E13B9",
      "GatewayRSSI": "-85.000000",
      "GatewaySNR": "8.750000",
      "GatewayESP": "-85.543648"
    }
  ]
}

Device Version Request / Response

The device sends a device version response (DevVersionAns) on port 203 at startup and every 15 days. You can send a device version request at any time.

Device startup

15 days since the last DevVersionAns

Device version request

Event?

Device sends DevVersionAns on port 203

Example: DevVersionAns Decode

This example payload comes from an MQflex 9s device. The SKU and Device Code fields identify the device model.

Payload: 01002d000003007e0f

Field Decode Raw Hex
CID DevVersionAns 01
Firmware Version (Big Endian) 0.42.0 00 2d 00
Reserved - 00
Bootloader Minor Version 3 03
Board and Module Version Reserved Nibble: 0000b. Board Version: 00b. Module Version: 00b 00
SKU Reading 9s 7e
Device Code MQFlex 0f

What's Next?

Sensor Operation DFU Instructions