AXLoRaTNCAX.25 over LoRa for ESP32

Full AX.25 Level 2 connected mode — LoRa replaces the classic AFSK/FSK modem layer. KISS · WA8DED · APRS · NET/ROM · BBS

Flash firmware →

Getting started

GitHub

AX.25 Level 2

Full connected-mode state machine — SABM/UA/DISC, sliding window, T1/T2/T3 timers, N2 retry, REJ and SREJ selective retransmit, RNR flow control.

KISS & WA8DED

Compatible with kissattach, Dire Wolf, LinBPQ, BPQ32, F6FBB, Graphic Packet, and PaxTerm out of the box.

APRS

Automatic APRS frame decode on receive. One-command position beacon with symbol and comment. Digipeater with H-bit update and duplicate suppression.

NET/ROM & BBS

NET/ROM NODES broadcast, route table with auto-expiry. Connected node shell with INFO, NODES, MHEARD commands and a built-in NVS mailbox BBS.

Supported hardware

ESP32 DevKit V1 + EBYTE E22 (SX1262) · Heltec WiFi LoRa 32 V3 (ESP32-S3) · TTGO T-Beam (SX1276) · LilyGo T3 LoRa32 V1.6.1 · LILYGO T-Beam SUPREME 433MHz

Persistent config

All settings — callsign, radio params, beacon, digi, NET/ROM alias, BBS messages — survive reboots via ESP32 NVS flash storage.