The Amp Hour Electronics Podcast

Chris Gammell and Dave Jones' voices span the chasm of thousands of miles each and every week to speak to each other and industry experts about where the field of electronics is moving. Whether it be a late breaking story about a large semiconductor manufacturer, a new piece of must-have test equipment or just talking through recent issues with their circuit designs, Chris and Dave try to make electronics more accessible for the listeners. Most importantly, they try and make the field of electronics more fun. Guests range from advanced hobbyists working on exciting new projects up through C-level executives at a variety of relevant and innovative companies. Tune in to learn more about electronics and then join the conversation! Visit The Amp Hour website for our back catalog of 150+ episodes.

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#442 – An Interview with Travis Goodspeed


Welcome, Travis Goodspeed!

  • Chris and Travis first met at after ESC Chicago in 2010.
  • TI Developer conference 2008 got into msp430
  • Chronos watch, had an “open source” design, much of the info was missing.
  • The GoodWatch project has an RPN calculator, assembler , disassembler, radio onboard
  • The chipcon430 was targeted at electric power meters
  • POCSAG
  • dapnet
  • IM ME
  • P25 PTT
  • Travis wrote a jammer for P25
  • Why special agent johnny still can’t encrypt
  • Sandy Clark
  • IM ME uses the same radio core
  • P25 is 4FSK
  • DMR
  • The MD380 is a digital mode HT radio (larger than a baofeng) for HAMs that costs about $90
  • MD380 tools on github
  • “As soon as open tools catch up, I jump ship to them”
  • The GoodFET project was built upon a similar msp430 Flash Emulation Tool
  • Mask ROM bootloader in msp430
  • Mike Ossmann wanted to redesign and paid Travis $5 for the files. This became the GreatFET.
  • Goodwatch also has python env
  • Travis got into ham radio at SkydogCon
  • Old tv newsvan
  • Facedancer project, now run by Kate Tempkin
  • Initially was for testing usb vulnerabilities
  • Time of check to time of use check
  • Kate attacks the Nintendo switch
  • Studebaker
  • Vapor lock
  • Knoxville
  • Recon Montreal
  • Camp++
  • Follow Travis on Twitter @travisgoodspeed
  • Do you know anyone at TI? Please have them reach out to Travis about the TI conference and how to bring it back


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 2019-05-13  1h12m