luwangg/gr-tenna

goTenna Mesh receiver and transmitter for GNU Radio

#
# Copyright 2018 Clayton Smith ([email protected])
#
# This file is part of gr-tenna.
#
# gr-tenna is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# gr-tenna is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with gr-tenna.  If not, see <http://www.gnu.org/licenses/>.
#

gr-tenna

The goal of this project is to implement the goTenna Mesh protocol in GNU Radio. So far there are flow graphs for receiving and transmitting "Shout" messages using a USRP B200 or HackRF.

Usage

The gotenna.py script invokes either a receive flowgraph or a transmit flowgraph depending on the command line arguments. By default, the USRP flowgraphs are used. If you're using a HackRF, add the --device hackrf option.

To receive messages:

./gotenna.py rx

To transmit a shout message:

./gotenna.py tx shout 1234567890 XYZ "Hello world!"

In this example, 1234567890 is the sender's GID, XYZ are the sender's initials, and "Hello world!" is the shout message.

Credits

This project builds on reverse engineering work done by Woody @tb69rr and Tim @bjt2n3904, and presented in the Wireless Village at DEF CON 25: https://www.youtube.com/watch?v=pKP74WGa_s0

reedsolo.py was written by Tomer Filiba and released into the public domain.