yveaux / nrf24_sniffer

Sniffer for Nordic NRF24L01+ modules with MySensors support

NRF24_Sniffer

Sniffer for Nordic NRF24L01+ modules

The wireless 2.4GHz Nordic Semiconductor nRF24L01+ chip (or nRF24 for short), does not support promiscuous mode, which in theory makes it impossible to capture network traffic between different nodes on a network.

This project contains a wireless sniffer for nRF24L01+ wireless modules meeting following requirements:

• Based on commodity, cheap hardware
• Traffic capturing for network with known parameters (channel, baudrate, base address)
• Analysis using Wireshark network protocol analyzer
• Possibility to analyze protocols which use the nRF24 for transport in their network

For a full description of this project see:

• http://yveaux.blogspot.nl/2014/07/nrf24l01-sniffer-part-1.html
• http://yveaux.blogspot.nl/2014/07/nrf24l01-sniffer-part-2.html
• http://yveaux.blogspot.nl/2014/07/nrf24l01-sniffer-part-3.html

nrf24_sniffer's Issues

Will this work on raspberry pi instead of Arduino?

Hi, I apologize if this is a very basic question. Can I get this software to work on a Raspberry pi hooked up to the NRF24l01+ via SPI instead of Arduino?

Won't compile for ESP8266

The way interrupts are enabled and disabled in CircularBuffer.h is not supported by the ESP8266 (SREG not defined). Maybe exchange this with Arduinos noInterrputs() and interrupts() methods?

FLOAT32 display in MySensors2 dissector seems to be broken

Values displayed are very large:

Possibly a bug (endianness?)

Logitech keyboard/mouse

Hi,

Is this able to sniff packets from Logitech devices that uses the NRF24?
The serial output stays stuck at Listening.... Thank you.

Fake remote control

Hi @Yveaux,

Thanks a lot for this awesome contribution, I've going into this and I bought the nrf24 sensor for arduino.

My main idea is automate with alexa whatsoever my lights, my lights have a remote control with rf 2.4. So I was over your tutorial and I executed the following command NRF24_Sniffer -r0 -p4 -l5 -c26 -a0x01 -v and I'm able to see an increasing of the packets when I press controls over the remote. Nevertheless all packets that I see in the wireshark says crc error and I don't see any packet with 32 bytes of length. Do you have any idea why is that?

Best regards

Illegal serial packet size when using address length 3

According to NerdRalph:
I get "Illegal serial packet size" when I use address length 3:

c:\nrf24sniff -P16 -c2 -a0xc2c2c2 -l3 -C0 -v
Connect Wireshark to .\pipe\wireshark to continue...
Wait for sniffer to restart Ok

Channel: 2
Datarate: 1Mb/s
Address: 0xc2c2c2
Max payload: 32
CRC length: 0
Captured 0 packets, Lost 0 packets
Illegal serial packet size 12
0c 02 00 03 04 c2 c2 c2 00 00 00 00

I don't get the error when I use length 4. I have yet to get it to capture any packets though, despite the nrf24l01 seemingly receiving packets (IRQ trigger goes low).