DragonOS adds standalone Meshtastic sniffer tool in C
DragonOS radio-forward Linux distribution now includes a standalone C-based sniffer that can detect and decode Meshtastic traffic across the protocol's bandwidth without requiring GNU Radio.
Summary
Developer cemaxecuter has integrated a Meshtastic sniffer into DragonOS, his Linux distribution for software-defined radio work. The tool is written in C as a standalone binary and can scan Meshtastic's full operating bandwidth to detect traffic, which it decodes if the encryption key is known. It is designed to work with a HackRF SDR, though the hardware's bandwidth does not cover every Meshtastic frequency. The software helps users locate active channels and networks without prior knowledge of specific channel configurations.
How the DragonOS sniffer works
- Written in C as a complete standalone binary with no GNU Radio dependency
- Scans the full bandwidth that Meshtastic operates on rather than requiring pre-configured channel knowledge
- Decodes detected traffic when the encryption key is available
- Targets HackRF as the SDR hardware; bandwidth limitations mean not all Meshtastic frequencies are covered
- Outputs detected node details to terminal in real time
Why it matters
The tool lowers the barrier to exploring Meshtastic networks by removing the need to know channel configurations in advance, and its standalone design without GNU Radio dependency may make it more accessible for embedded or portable SDR deployments.
Original reference: hackaday.com →