RF Fun with ESP8266 Devices and Software Defined Radio

Transcription

1 RF Fun with ESP8266 Devices and Software Defined Radio Is that a dongle in your pocket or are you just happy to.. Jeff Murri KK4ETK Independent Security Researcher murrij@gmail.com

2 Standard Disclaimer In no way, shape or form am I speaking for any previous or current employer. You re on your own to make sure that you are adhering to applicable laws when it comes to the topics of our friendly chat today. You can very easily make a WIFI Deauther, WIFI Jammer and do evil with your ESP8266 board. If you do then you re on your own. Don t Forget to Be Awesome (DFTBA)!!

3 Let s chat about some hardware Software Defined Radio (SDR) ESP8266 and ESP32 chips If we have time - ESPXX chips and CAN Bus for tweaking your ride Will have a SDR workshop this afternoon if you want Ask questions as they come up! Let s keep this interactive.

4 Software Defined Radio - Hardware RTL-SDR aka the $20.00 SDR is definitive source for info. I recommend the NooElec RTL2832U dongle. Don t forget to get the appropriate antenna adapter for whatever dongle you get! All the information you need as far as purchasing hardware is at: Another source of RTL-SDR info is rtlsdr.org, and of course The Google. Gateway Drug for SDR

5 Software Defined Radio Other Hardware Cool thing is more and more have transmit capabilities. SDRPlay RSP2 $ (this is my daily driver for SDR) 1 khz to 2GHz with up to 10MHz viewable in the SDR app More information at hackrf.nooelec.com LimeSDR Mini $ plus accessories (open source) 10 MHz to 3.5 GHz with some transmit capabilities! More information at HackRF One $ plus accessories (open source) MHz to 6GHz with some transmit capabilities! More information at hackrf.nooelec.com USRP (Big Bucks) 70MHz to 6GHz with huge bandwidth More information at

6 Software Defined Radio - Applications Windows SDR# at Has a crap ton of plug-ins. Used to be open source. Now closed source, but it has a great plug-in API. HDSDR at Some people prefer the HDSDR interface. It also has hooks to some amateur radio transmission apps. Ability to record and scheduling a recording makes some people happy. SDR-Radio at Can be overwhelming at first, but has a ton of functionality. Try HDSDR first then SDR# and see which one you prefer

7 Software Defined Radio Demo on Windows When using the RTL-SDR Dongle in Windows you need to first run an app called Zadig to tell Windows that the dongle isn t a TV Tuner (it s intended function originally), but instead it s a generic WinUSB device that can feed data to an SDR application. Note: Be careful here. If you aren t paying attention you can replace the driver for your mouse and/or keyboard. With Linux I haven t had a problem with the dongle being recognized as an SDR device but YMMV. An excellent resource for software setup is: Windows Demo

8 Software Defined Radio - Applications Linux and Mac GNU Radio Is a beast, but gets you closest to the hardware. More information at gnuradio.org Supports pretty much everything, but has a steep learning curve. Michael Ossmann s superb SDR tutorials start with GNU Radio and are highly recommended at greatscottgadgets.com/sdr/ Balint has a great set of tutorials at files.ettus.com/tutorials/

9 Software Defined Radio - Applications Linux and Mac The raw RTL-SDR software Command line tools and the OSMOCOM guys are also behind all the great RTL-SDR stuff that we know and love today. HUGE props to them. More info can be found at: sdr.osmocom.org/trac/wiki/rtl-sdr Hak5 has a great set of vids at hak5.org/tag/rtl-sdr particularly Episode 1703 for RTL-SDR. GQRX Recommended software for Linux/Mac. Runs on top of GNU-Radio. Info at gqrx.dk

10 Let s Switch Gears and Talk About Some ESP8266 Fun and That Dang Cool Badge You have.

11 ESP8266 boards come in many variants. Everything from external antenna connectors to more onboard nvram, etc. Latest ESP8266 is ESP-12E Oh, we ll talk about the ESP32 modules at the end...

12 The Original ESP8266 Module This is the raw board the chip itself and 4MB of FLASH. Can crater the board by plugging it directly to USB (which is 5 volts). 3V tolerant Price: $1.00-$2.00

13 ESP8266 Node MCU module We ARE using this today Can be programmed by itself via USB! Chip is only 3.3 volt tolerant, but the board has a 5 volt to 3.3 volt level converter. Board Price: $3.00-$11.00 Note you get what you pay for here...

14 ESP8266 Specs b/g/n protocol Wi-Fi Direct (P2P), soft-ap Integrated TCP/IP protocol stack Integrated TR switch, balun, LNA, power amplifier and matching network Integrated PLL, regulators, and power management units +19.5dBm output power in b mode 512k up to 4MB of flash memory.

15 ESP8266 GPIO/Pinouts

16 Programming... Lua Direct AT commands Visual Basic C++ MQTT Micro Python Mongoose Grows every day.

17 ht We ll use C and Arduino To begin, we ll need to update the board manager with a custom URL. Open up Arduino, then go to the Preferences (File> Preferences). Towards the bottom of the window, type.copy this URL into the Additional Board Manager URLs text box:

18

19 Thank you Friends! Questions?