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DongLoRa Mux (Python)
USB multiplexer daemon — lets multiple applications share one DongLoRa
dongle simultaneously. Speaks the DongLoRa Protocol v2 wire protocol
(see PROTOCOL.md).
What It Does
- Owns the USB serial connection exclusively (flock-protected).
- Exposes a Unix domain socket and optional TCP listener speaking the DongLoRa Protocol v2 frame format.
- Tag-correlated solicited responses — concurrent commands from
multiple clients are routed back to the originator via a mux-allocated
device-tag map (
PROTOCOL.md §13.6). RXfan-out — every over-the-air RX is broadcast to all clients.- TX loopback (
§13.4) — a successful TX from one client is delivered to every other client as anRXevent withorigin = LOCAL_LOOPBACK. - Smart
SET_CONFIGarbitration (§13.2) — the first successful call locks the config; cross-client calls getALREADY_MATCHED/LOCKED_MISMATCHwith the lock owner's params echoed. A single connected client can still retune freely (scanner mode). RX_START/RX_STOPref-counting — the radio stays in RX as long as any client wants it.
Running
just run # start the mux daemon
just verbose # start with verbose logging
just run --tcp 5741 --port /dev/ttyACM0 # with options
Depends On
donglora(>= 1.0) — the Python client library. Provides the wire-level frame codec, event parsers, and USB discovery helpers this mux is built on.
Relationship to donglora-mux (Rust)
This package is a Python port of the Rust
donglora-mux daemon. The two
implementations are functionally equivalent — they speak the same
DongLoRa Protocol v2 wire protocol, implement the same §13.2 / §13.4 multi-client
semantics, and are drop-in interchangeable in front of the same dongle.
Pick whichever fits your ops environment:
- Rust (
cargo install donglora-mux) — single binary, no runtime deps, ~5 MB release build. Better for production / embedded Linux. - Python (
pip install donglora-mux) — easy to hack on, integrates with a Python toolchain, useful when Rust isn't an option.
If you find a behavioural divergence between the two, that's a bug — please file it.