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Circuit Break Podcast #342

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September 2, 2022, Episode #342

Hyr0n of the AND!XOR group joins the podcast this week to discuss the DEFCON 30 Hacker Smart Watch and what we can look forward to next year.

HyR0n

  • Mathematician
  • Computer Scientist
  • AND!XOR employee of the month
  • Working on badges and things Hackery

Previous Podcast Episodes

DEFCON 30 AND!XOR Badge

  • Its a watch, with some watch things, hacker apps (TV B Gone, BLE Interrogator), Games, & Challenge
  • Give them away for free at DEF CON following sponsorship from companies and philanthropists.
  • Off the shelf device with hacked firmware
    • LilyGo T-Watch 2020 V3
  • But how did we get there?
    • A story of supply chain woes
    • Original Watch idea – supply chain issues and crazy costs / quantity buy requirements
    • Look at consumer watches we could hack (PineTime, then LilyGo)
  • It wasnt just software, a true micropython implementation was done for firmware
  • Always interested in python
    • We always lived in a C world
    • Makes hacking it easier for end user
  • Micropython vs Circuit Python
  • The Hacking Challenge – BENDER 
  • Flashing Party – Things you should think about – i.e. Design for Drunk Hacker Production
    • You’re going to do the same thing thousands of times, what do we automate?
    • Loop script for provisioning
    • Push bare minimum over serial, then use wifi to complete
    • Turning screen green once flash done and charge at 100%
  • Other thoughts?
    • Really different than what we do, was really fun
    • People like bling more than function, but …

About the Hosts

Parker dillmann
  Parker Dillmann

Parker is an Electrical Engineer with backgrounds in Embedded System Design and Digital Signal Processing. He got his start in 2005 by hacking Nintendo consoles into portable gaming units. The following year he designed and produced an Atari 2600 video mod to allow the Atari to display a crisp, RF fuzz free picture on newer TVs. Over a thousand Atari video mods where produced by Parker from 2006 to 2011 and the mod is still made by other enthusiasts in the Atari community.

In 2006, Parker enrolled at The University of Texas at Austin as a Petroleum Engineer. After realizing electronics was his passion he switched majors in 2007 to Electrical and Computer Engineering. Following his previous background in making the Atari 2600 video mod, Parker decided to take more board layout classes and circuit design classes. Other areas of study include robotics, microcontroller theory and design, FPGA development with VHDL and Verilog, and image and signal processing with DSPs. In 2010, Parker won a Ti sponsored Launchpad programming and design contest that was held by the IEEE CS chapter at the University. Parker graduated with a BS in Electrical and Computer Engineering in the Spring of 2012.

In the Summer of 2012, Parker was hired on as an Electrical Engineer at Dynamic Perception to design and prototype new electronic products. Here, Parker learned about full product development cycles and honed his board layout skills. Seeing the difficulties in managing operations and FCC/CE compliance testing, Parker thought there had to be a better way for small electronic companies to get their product out in customer's hands.

Parker also runs the blog, longhornengineer.com, where he posts his personal projects, technical guides, and appnotes about board layout design and components.

Stephen Kraig
  Stephen Kraig

Stephen Kraig began his electronics career by building musical oriented circuits in 2003. Stephen is an avid guitar player and, in his down time, manufactures audio electronics including guitar amplifiers, pedals, and pro audio gear. Stephen graduated with a BS in Electrical Engineering from Texas A&M University.

Special thanks to whixr over at Tymkrs for the intro and outro!

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