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ESP8266 based Arduino wardriving

What is this?

A simple/cheap hardware + software setup to do wardriving trips and store as much information as we can on a SD card, using a small Arduino box. Part of the datalogging code stolen from Sparkfun guys

What do we need?

  • $2.98 ESP8266 board (NodeMCU v3 works great)
  • $0.99 Arduino SD Card shield + SD card (a 10 minute trip could generate a 250KB file)
  • $4.21 Blox GY-NEO6MV2 GPS board
  • $3.07 HD44780 i2c LCD screen
  • $1.25 USB powerbank

What does this do?

  • Checks for a working SD Card
  • Waits for GPS signal
  • Collects all WiFi signals on 2.4Ghz on every (configurable) GPS sample
  • Stores this information as a CSV file

What does this doesn't do?

  • This doesn't capture pcap files due power limitations
  • This doesn't attack any network

What does this need?

* A better/sorted insertion on CSV files to get rid of duplicate network entries Fixed on d88815b43919bbf54e27a75a84c77be891900372

  • Fix some race conditions
  • A PCB design that I'm working on
  • A better antenna for GPS and WiFi, that will help to speed up satellite lock-up and enlarge WiFi coverage

What do you need to configure?

Nothing, but you can:

  • Setup CS pin for SD card module on ARDUINO_USD_CS variable
  • Change log file prefix and suffix on LOG_FILE_PREFIX and LOG_FILE_SUFFIX
  • Remove or add columns to CSV datalog on log_col_names
  • Define GPS log rate time on LOG_RATE (milliseconds)
  • Define GPS TX/RX pins on ARDUINO_GPS_RX and ARDUINO_GPS_TX

Electric setup

Electric setup has nothing special, there is a Fritzing diagram attached as well as a breadboard view of the setup

Working examples

I did a small walking trip around my neighborhood, and put the collected data on a Google MyMaps. Note that MyMaps has a limitation of 2000 entries of each CSV (or XML) file. I will try using Open street maps.

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Tupperware based ESP8266 wardriving hardware

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