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LoRa_Craft
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Fixing typos of the README.md file

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@ -1,8 +1,8 @@
# LoRa Craft
LoRa Craft is a small set of tools to receive signal with SDR, decode et craft LoRaWAN packets on top of a **gr-lora** GNU Radio module.
LoRa Craft is a small set of tools to receive signals with SDR, decode et craft LoRaWAN packets on top of a **gr-lora** GNU Radio module.
This repository will be completed with others tools soon, depending on needs during assessments :)
This repository will be completed with other tools soon, depending on needs during assessments :)
## Dependencies
@ -10,21 +10,21 @@ This repository will be completed with others tools soon, depending on needs dur
* Scapy
* GNU Radio 3.8
* gr-lora from [rpp0](https://github.com/rpp0): [link here](https://github.com/rpp0/gr-lora)
* A Software-Defined Radio equipment (USRP, bladeRF, RTL-SDR dongle, etc.)
* Software-Defined Radio equipment (USRP, bladeRF, RTL-SDR dongle, etc.)
## Receive signal and decode its data
### Receive
To receive a signal, an example of a GRC schema is available in folder `grc_examples/usrp_LoRa_decode_to_UDP.grc` for USRP, as shown as follows:
To receive a signal, an example of a GRC schema is available in the folder `grc_examples/usrp_LoRa_decode_to_UDP.grc` for USRP, as shown as follows:
![alt text](https://github.com/PentHertz/LoRa_Craft/blob/master/img/completeschema.png "Schema to receive LoRa signal")
The channel frequency, as well as the spread facto and the bandwidth must be set correctly to valid values with the help of the FFT and waterfall sinks:
The channel frequency, as well as the spreading factor and the bandwidth, must be set correctly to valid values with the help of the FFT and waterfall sinks:
![alt text](https://github.com/PentHertz/LoRa_Craft/blob/master/img/frequencydet_zoomout_sf12bw125.png "Waterfall and FFT sinks")
Note: Multiple frequencies can be used by targets. This would implies to include multiple receivers in GRC.
Note: Multiple frequencies can be used by targets. This would imply to include multiple receivers in GRC.
For more information on how to detect LoRa signal, please take a look at the following post: https://penthertz.com/blog/testing-LoRa-with-SDR-and-handy-tools.html.
@ -58,7 +58,7 @@ $ sudo python LoRa_PHYDecode.py
## Generate packets
To generate packets, you can instanciate a Scapy packet as follows:
To generate packets, you can instantiate a Scapy packet as follows:
```python
>>> from layers.loraphy import *
@ -82,7 +82,7 @@ After crafting your packet, you can use [python-loranode](https://github.com/rpp
>>> c.send_p2p(to_send)
```
Note that you should skip the first three bytes (Preambule, PHDR, PHDR_CRC), before sending it with `send_p2p` method.
Note that you should skip the first three bytes (Preamble, PHDR, PHDR_CRC), before sending it with `send_p2p` method.
## LoRa crypto helpers