Skip to main content

ChirpStack v4

This page is a practical checklist for connecting a HARDWARIO CHESTER device to a LoRaWAN network using ChirpStack v4.
It covers where to get LoRaWAN credentials from CHESTER and how to configure them in ChirpStack.

Prerequisites​

  • LoRaWAN network with gateway and ChirpStack v4
  • Access to CHESTER console (Bluetooth / USB / J-Link)
  • Correct LoRaWAN region (e.g. EU868, US915) configured consistently on:
    • CHESTER
    • Gateway
    • Network Server

1) Where to get CHESTER LoRaWAN credentials​

1.1 Connect to CHESTER console​

You can use one of the following tools:

  • HARDWARIO Manager (mobile, BLE)
  • HARDWARIO Terminal (web BLE terminal in Chrome)
  • J-Link + HARDWARIO CLI console

1.2 Display LoRaWAN configuration​

Run:

lrw config show

You will see values such as:

  • lrw config band (e.g. eu868)
  • lrw config mode (otaa / abp)
  • lrw config deveui
  • lrw config joineui
  • lrw config appkey

Recommendation: use OTAA unless you have a specific reason to use ABP.

2) Switch catalog application to LoRaWAN mode (if needed)​

Some catalog firmwares do not transmit data until the communication mode is selected.

app config mode lrw
config save

CHESTER will reboot and enable LoRaWAN radio.

3.1 Parameters that must match​

Between CHESTER and ChirpStack:

  • DevEUI
  • JoinEUI / AppEUI
  • AppKey

3.2 Configure OTAA parameters on CHESTER​

lrw config mode otaa
lrw config nwk public
lrw config dutycycle false

lrw config deveui  <YOUR_DEV_EUI>
lrw config joineui <YOUR_JOIN_EUI>
lrw config appkey  "<YOUR_APPKEY>"

config save

Notes:

  • AppKey copied from UI may contain spaces → quotes are recommended.
  • nwk public/private must match the gateway/network configuration.

4) ChirpStack – Device Profile for CHESTER​

Create a Device Profile with the following recommended settings:

ParameterValue
MAC versionLoRaWAN 1.0.4
Regional parameters revisionA
ADR algorithmDefault ADR algorithm (LoRa only)
Device supports OTAAON
Device supports Class-BOFF
Device supports Class-COFF

5) ChirpStack – Application and device registration​

5.1 Create an application​

  • Go to Applications
  • Create a new application

5.2 Add CHESTER as an end device​

Inside the application:

  • Name
  • Device EUI (DevEUI)
  • Join EUI / AppEUI
  • Device Profile

Save the device.

5.3 Configure AppKey in ChirpStack​

  • In device details, set or generate AppKey
  • Copy the AppKey carefully (use “eye” icon if needed)
  • Use the same AppKey in CHESTER configuration

To decode uplink payloads from CHESTER:

  1. Open Device Profile
  2. Go to Codec
  3. Insert JavaScript payload decoder

References​