Micron Document
ScotMesh RNS Network
Firmware & flashing tools

LoRa radio firmware, and the tools to flash it, for people on Reticulum without an internet connection. Everything here is a copy of the ScotMesh firmware mirror at rnode.scotmesh.net and was checked against its SHA-256 sums.

Online? Use the web flasher at rnode.scotmesh.net instead (Chrome or Edge on a desktop). It does all of this for you, including the set-up afterwards.

Which firmware?
RNode firmware by Mark Qvist turns a board into an RNode: a LoRa radio for a computer or phone running Reticulum (Sideband, NomadNet, MeshChatX or rnsd). The computer or phone sets the radio.

The ScotMesh microReticulum firmware is our fork. It makes the board a standalone Reticulum node with its own identity, which carries traffic on its own with no computer attached: good for solar boxes and hilltop relays.

Start here
How to flash: serial ports, bootloader mode, set-up
Flashing tools for Windows, Linux and macOS

Boards
Pick your board for its downloads and the exact commands. R = RNode firmware, N = ScotMesh node firmware.

Heltec
Mesh Node T114 nRF52840 R
LoRa32 V3 ESP32-S3 R N
LoRa32 V4 (PA) ESP32-S3 R N
LoRa32 V2 ESP32 R N
Wireless Tracker V2 ESP32-S3 N

LilyGO
T-Echo nRF52840 R N
T3S3 (SX1262) ESP32-S3 R N
T3S3 (SX127x) ESP32-S3 R N
T-Beam (SX1262) ESP32 R N
T-Beam (SX127x) ESP32 R N
T-Beam Supreme ESP32-S3 R N
T-Deck ESP32-S3 R N
LoRa32 V2.1 (T3) ESP32 R N
LoRa32 V2.0 ESP32 R N
LoRa32 V1.0 ESP32 R N

RAK Wireless
WisBlock RAK4631 nRF52840 R N

Seeed Studio
SenseCAP Solar Node P1 nRF52840 N Built by ScotMesh
XIAO ESP32S3 + Wio-SX1262 ESP32-S3 R N

unsigned.io
RNode NG21 (handheld) ESP32 R N
RNode NG20 ESP32 R N

Other builds in these releases
No board page for these yet. The RNode ones work with rnodeconf --autoinstall (see How to flash).

RNode firmware 1.86
rnode_firmware_esp32_generic.zip 2.9 MB
rnode_firmware_featheresp32.zip 2.9 MB
rnode_firmware_lora32v20_extled.zip 2.9 MB
rnode_firmware_lora32v21_extled.zip 2.9 MB
rnode_firmware_lora32v21_tcxo.zip 2.9 MB
rnode_firmware_t3s3_sx1280_pa.zip 2.7 MB

ScotMesh microReticulum firmware v1.86-scotmesh.6
rnode_firmware_esp32_generic.zip 3.1 MB
rnode_firmware_featheresp32.zip 3.1 MB
rnode_firmware_heltec32v2_extled.zip 3.2 MB
rnode_firmware_lora32v20_extled.zip 3.2 MB
rnode_firmware_lora32v21_extled.zip 3.2 MB
rnode_firmware_rak3401.zip 0.8 MB
rnode_firmware_t3s3_sx1280_pa.zip 3.0 MB

About this mirror
| Firmware | Version | Released |
| --- | --- | --- |
| RNode firmware | 1.86 | 24 April 2026 |
| ScotMesh microReticulum firmware | v1.86-scotmesh.6 | 11 September 2026 |

Mirror last changed: 2026-09-11 20:33 UTC. It checks for new releases every hour and keeps only the latest version of each; older versions are on rnode.scotmesh.net.
Every file and its SHA-256: SHA256SUMS.txt
Each release's own list of firmware hashes: RNode release.json, ScotMesh node release.json

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