# Chirp Stack Gateway Rock Pi 4B+ + Nebra LoRa HAT (GL5712-UX / SX1301+SX1302) working on Armbian Trixie — setup script + full writeup **URL:** \ **Category:** Gateways\ **Tags:** gateways, end-devices\ **Created:** [May 23, 2026, 9:51am UTC](https://www.thethingsnetwork.org/forum/t/chirp-stack-gateway-rock-pi-4b-nebra-lora-hat-gl5712-ux-sx1301-sx1302-working-on-armbian-trixie-setup-script-full-writeup/73706 "2026-05-23T09:51:20Z")\ **Posts on this page:** 1\ **Showing post:** 13
**Author:** ![descartes](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/descartes/32/47220_2.png) [@descartes](https://www.thethingsnetwork.org/forum/u/descartes)\ **Post date:** [June 2, 2026, 8:22am UTC](https://www.thethingsnetwork.org/forum/t/chirp-stack-gateway-rock-pi-4b-nebra-lora-hat-gl5712-ux-sx1301-sx1302-working-on-armbian-trixie-setup-script-full-writeup/73706/13 "2026-06-02T08:22:13Z")
> [@datastream](#): > > You’re right that I wasn’t explicit enough about how I’d set it up, so let me explain properly. I was only referring to how you’d got the MQTT credentials. > [@datastream](#): > > **TTN — current state** > I’m not using the application MQTT or trying to push gateway packets through that, I take your point about why that wouldn’t work. So where DID you get some MQTT credentials from? > [@datastream](#): > > The connection isn’t live yet, repeated failed attempts during debugging triggered a rate-limit (I think) on my WAN IP Huh? Please re-read my explanation. You can’t push any data to the MQTT broker other than downlinks, so any disconnect is because the connection is dormant having not subscribed. > [@datastream](#): > > so I’m waiting for that to clear before bringing the service up. Config and credentials are confirmed correct at this point. There are no credentials for a PacketForwarder and rather a lot for BasicStation which work on different ports to MQTT so should just work. So it’s not clear what you have going here. > [@datastream](#): > > I’ll be mapping coverage with a Heltec V4 ESP32-S3 LoRa running TTN Mapper firmware IF you get the V4 working, do let us know how - you can ask about it on the Heltec forum - someone has just opened a thread on that very topic. The LNA & PA switching are currently a dark art as those that can haven’t got hold of one to investigate yet and Heltec haven’t released firmware for their own board(s) that work. The better choice would be a Heltec Tracker v1 - integrated GNSS module. The v2 is like the LoRa v4, interesting but borked. --- _[View the full topic](https://www.thethingsnetwork.org/forum/t/chirp-stack-gateway-rock-pi-4b-nebra-lora-hat-gl5712-ux-sx1301-sx1302-working-on-armbian-trixie-setup-script-full-writeup/73706)._