Skip to main content
Skip to main content
GPS tracker

ELV LW-GPS2 LoRaWAN decoder and payload format

The ELV LW-GPS2 is a LoRaWAN GPS tracker that reports GPS position and acceleration. It works from -10 to 55 °C.

ELV LW-GPS2
Official decoderProduct page

Payload format

An uplink from the device as it arrives at the network server, and what the official decoder returns for it. Examples come from the decoder's own test cases.

Example 1 · fPort 10

Payload (hex)

01 01 00 01 02 02 03 07 03 01 04 0B FC 0A E8 55 2A 03 2F C4 7D 00 B0 AD 01 00 01 0B

Decoded (JSON)

{
  "altitude": 11,
  "app_version": "V1.0.1",
  "bl_version": "V2.3.7",
  "hdop": 1.44,
  "latitude": 53.106152,
  "longitude": 8.242223,
  "supply_voltage": 3068,
  "tx_reason": "TIMER_EVENT"
}
FieldValue
altitude11
app_versionV1.0.1
bl_versionV2.3.7
hdop1.44
latitude53.106152
longitude8.242223
supply_voltage3068
tx_reasonTIMER_EVENT

Example 2 · fPort 10

Payload (hex)

01 01 00 01 02 02 03 07 03 02 04 0C 02 0A F8 55 2A 03 4C C4 7D 00 B0 AD 01 00 01 0B

Decoded (JSON)

{
  "altitude": 11,
  "app_version": "V1.0.1",
  "bl_version": "V2.3.7",
  "hdop": 1.44,
  "latitude": 53.106168,
  "longitude": 8.242252,
  "supply_voltage": 3074,
  "tx_reason": "USER_BUTTON_EVENT"
}
FieldValue
altitude11
app_versionV1.0.1
bl_versionV2.3.7
hdop1.44
latitude53.106168
longitude8.242252
supply_voltage3074
tx_reasonUSER_BUTTON_EVENT

Specifications

Manufacturer
ELV
Model
LW-GPS2
Type
GPS tracker
Measures
GPS position, acceleration
Operating temperature
-10 … 55 °C
LoRaWAN regions
EU863-870

Connect it to Cloud Studio IoT

  1. 1

    Register the device in your network server

    Add it to The Things Stack, ChirpStack, Actility ThingPark or LORIOT with its DevEUI, JoinEUI and AppKey and the frequency plan of your region.

  2. 2

    Apply the decoder

    In The Things Stack, pick the model from the device repository and its decoder is applied for you. In ChirpStack v4, paste the official decoder as the device profile's JavaScript codec.

  3. 3

    Connect the network server to Cloud Studio IoT

    Set up the integration once per network server; every device registered there then reaches Cloud Studio IoT with its decoded values.

  4. 4

    Build dashboards and alarms

    The decoded fields become device variables for dashboards, alarms by email or SMS, and scheduled reports.

See your ELV LW-GPS2 on a dashboard

Start a free trial, add the device with its DevEUI and get dashboards and alarms from its next uplink.

Talk to us

Frequently asked questions

Device facts and decoder examples: The Things Network Device Repository (Apache-2.0) · commit 7693223, imported 2026-10-05.