Category Archives: Projects

THOTCON Logic Analyzer Lab

The THOTCON Logic Analyzer lab walks you through inspecting different embedded protocol signals using a logic analyzer.

To recreate the lab at home you’ll need a Logic Analyzer.

The Lab used Saleae’s “Logic” v.1.2.4 software. You can use a Saleae Logic Analyzer device. Inexpensive $10 USB logic analyzer clones available on Amazon and Ebay work with the Saleae software as well.

You’ll also need some devices to create signals. Here are some ideas:

  • Connect two Arduinos together and configure them to talk Serial, I2C or SPI
  • Buy a $10 RFID lock (available on EBay) and inspect the internal circuitry for various digital signals
  • Connect an Arduino to a Serial EEPROM and perform reads and writes, and inspect the data
  • Utilize Arduino add-on modules, such as an NFC RFID reader, and inspect the signals.

Here is the Lab Manual used for THOTCON 09.

THOTCON Arduino RFID Spoofer/Snooper Lab

The THOTCON 09 RFID Analysis Lab used the following resources:

  • RFID lock that can be found for about $10 on Ebay
  • A Hantek USB digital storage oscilloscope
  • Arduino Nanos to configure as an RFID snooper and RFID spoofer


RFID Snooper/Spoofer Resources:

Micro Makey Makey

The Makey Makey is a simple device that uses an Atmega microcontroller impersonating a USB Keyboard. I’ve built a version that uses an Arduino Pro Micro I call the Micro Makey-Makey.

The Micro Makey-Makey PCB board has connections for six connectors and two ground cables. This gives you enough to make a standard game controller.

Here’s a quick video on the Micro Makey Makey:

Here are some instructions and source code: