MeshCoreSniffer v1.2.0 (Linux x64)

Linux release.

Changes in v1.2.0:

• Added native Linux builds for both the CLI and the desktop GUI.
• The GUI now enumerates RTL-SDR devices on Linux through the runtime-loaded
  librtlsdr, so live receive works the same as on Windows.
• Map tiles are fetched over HTTPS with libcurl on Linux (optional at build
  time).
• Linux file picker uses zenity; "open data folder" uses xdg-open.
• GUI history, keys, settings and tile cache default to
  $XDG_DATA_HOME/MeshCoreSniffer (or ~/.local/share/MeshCoreSniffer).
• The Windows build is unchanged and still uses WinHTTP, the native file
  dialog, %LOCALAPPDATA% and the existing GUI build scripts.

Includes:

• MeshCoreSniffer (console receiver)
• MeshCoreSniffer-gui (desktop GUI)
• LICENSE, NOTICE.md, README.md, screenshots
• licenses/ for Dear ImGui and Ed25519

Requirements (Debian/Ubuntu):

sudo apt install libglfw3 libsqlite3-0 libcurl4 libgl1 rtl-sdr

Usage:

./MeshCoreSniffer
./MeshCoreSniffer --iq capture.wav
./MeshCoreSniffer-gui
./MeshCoreSniffer-gui --wav capture.wav --start --exit-after 15

Live RTL-SDR receive requires the rtl-sdr runtime package and appropriate
udev permissions. Offline IQ WAV decoding works without an RTL-SDR.

The GUI is RX-only. See NOTICE.md for the OpenITC-derived GUI attribution
and bundled third-party licenses.

MeshCoreSniffer v1.1.0 (Windows x64)

Desktop GUI release.

Changes in v1.1.0:

• Added MeshCoreSniffer-gui.exe, a Dear ImGui + GLFW desktop dashboard.
• Fixed dashboard with a live node map, chat channels, key manager, packet log,
  packet inspector, statistics and event log.
• RTL-SDR or streaming IQ WAV sources, with US/EU band presets and custom
  frequency.
• Add/remove/enable 16- or 32-byte channel keys; public key always enabled.
• Map markers for adverts with location (Esri World Imagery by default; cached
  under %LOCALAPPDATA%\MeshCoreSniffer\tiles).
• SQLite history, keys and settings under %LOCALAPPDATA%\MeshCoreSniffer.
• CSV/JSON export and a live chat view with sender/hop/timestamp detail.
• GUI is receive-only. The console decoder is unchanged from v1.0.3, including
  the 250 kHz default, in-band trigger and corrected RTL-SDR gain mode.

Packet inspector	Packet log

Includes:

• MeshCoreSniffer.exe (console receiver, unchanged)
• MeshCoreSniffer-gui.exe (desktop GUI)
• librtlsdr.dll, libusb-1.0.dll, glfw3.dll, libsqlite3-0.dll
• LICENSE, NOTICE.md, README.md, screenshots
• licenses/ for ImGui, stb_image, GLFW, SQLite, librtlsdr and libusb

Requirements:

• Windows x64.
• RTL-SDR live mode needs the WinUSB driver installed (e.g. with Zadig).
• Offline IQ WAV decode works without an RTL-SDR.

Usage:
MeshCoreSniffer.exe
MeshCoreSniffer-gui.exe
MeshCoreSniffer.exe --iq capture.wav
MeshCoreSniffer-gui.exe --wav capture.wav --start --exit-after 15

The GUI is RX-only; the CLI MeshCoreSniffer.exe remains available and
unchanged. See NOTICE.md for the OpenITC-derived GUI attribution and bundled
third-party licenses.

MeshCoreSniffer v1.0.3 (Windows x64)

Portable Windows x64 build.

Changes in v1.0.3:

• Fixed the RTL-SDR gain mode. librtlsdr uses 0 = automatic and 1 = manual, so the previous code ran at minimum gain for --gain auto and ignored --gain <dB>. Live decoding now gets the gain you ask for.
• Live trigger now measures in-band energy instead of broadband RMS, with a rolling-median noise floor. Weak/moderate packets trigger, and noise spikes can no longer leave the receiver stuck false-triggering.
• End-of-burst detection uses a median window, so impulse noise no longer stretches captures to the 2 s limit or truncates packets.
• Live mode now defaults to 250 kHz (4x oversampling of the 62.5 kHz channel), matching the known-good IQ recordings. 500 kHz and 1 MHz still work via --rate.
• Faster failure paths (bounded burst/phase search, no full-rate fallback above 4x oversampling), so the receiver keeps up with the sample stream.
• Added a diagnostic --dump-dir DIR option to save captured bursts as WAV files.

Includes:

• MeshCoreSniffer.exe
• librtlsdr.dll
• libusb-1.0.dll
• licenses/ (librtlsdr GPL-2.0, libusb LGPL-2.1)

Live RTL-SDR is the default. On Windows the RTL-SDR needs the WinUSB driver installed (e.g. with Zadig).

Usage:
MeshCoreSniffer.exe
MeshCoreSniffer.exe --key
MeshCoreSniffer.exe --freq 869.525
MeshCoreSniffer.exe --iq capture.wav

If live decode still fails, run with --verbose to see trigger, capture and decoder diagnostics.

MeshCoreSniffer v1.0.2 (Windows x64)

Portable Windows x64 build.

Changes in v1.0.2:

• Restored the fractional timing phase search as a fallback after the full-rate/demod path. This fixes the no-decode regression introduced in v1.0.1 for captures whose preamble lands on an awkward sample phase.
• Full-rate demodulation is still tried before the slow phase search, so normal packets stay fast.

Includes:

• MeshCoreSniffer.exe
• librtlsdr.dll
• libusb-1.0.dll
• licenses/ (librtlsdr GPL-2.0, libusb LGPL-2.1)

Live RTL-SDR is the default. On Windows the RTL-SDR needs the WinUSB driver installed (e.g. with Zadig).

Usage:
MeshCoreSniffer.exe
MeshCoreSniffer.exe --key
MeshCoreSniffer.exe --freq 869.525
MeshCoreSniffer.exe --iq capture.wav

If live decode still fails, run with --verbose to see whether bursts trigger and whether a preamble/header is found.

MeshCoreSniffer v1.0.1 (Windows x64)

Portable Windows x64 build.

Changes in v1.0.1:

• Reduced live decode latency. The decoder now uses a single decimated timing phase and falls back to full-rate demodulation, which cuts per-burst processing time substantially and avoids long stalls on busy/long packets.
• Bundled librtlsdr.dll is loaded from the application folder first, so the zip is self-contained.

Includes:

• MeshCoreSniffer.exe
• librtlsdr.dll
• libusb-1.0.dll
• licenses/ (librtlsdr GPL-2.0, libusb LGPL-2.1)

Live RTL-SDR is the default. On Windows the RTL-SDR needs the WinUSB driver installed (e.g. with Zadig).

Usage:
MeshCoreSniffer.exe
MeshCoreSniffer.exe --key
MeshCoreSniffer.exe --freq 869.525
MeshCoreSniffer.exe --iq capture.wav

MIT licensed; bundled DLLs keep their own licenses (see licenses/).

MeshCoreSniffer v1.0.0 (Windows x64)

Portable Windows x64 build.

Included:

• MeshCoreSniffer.exe
• librtlsdr.dll
• libusb-1.0.dll
• licenses/ (librtlsdr GPL-2.0, libusb LGPL-2.1)

Live RTL-SDR is the default. On Windows, the RTL-SDR needs the WinUSB driver installed (for example with Zadig).

Usage:
MeshCoreSniffer.exe
MeshCoreSniffer.exe --freq 869.525
MeshCoreSniffer.exe --iq capture.wav

MIT licensed; bundled DLLs keep their own licenses (see licenses/).