The schematic, EAGLE CAD files, and Bill of Materials for the CHUCKWAGON I2C adapter as presented at DEFCON22 are now available. You can buy the board directly from OSH Park, the components from Digikey, and solder the device yourself. For those looking for some references on using I2C on the BeagleBone Black, check out my I2C references post.
It does require surface mount soldering, but it’s a good board on which to practice. The top layer isn’t so bad but the pads for the P-channel MOSFET on the bottom are a bit tight. If you don’t want to deal with the P-Channel MOSFET, you can put a solder bridge over the source and drain and connect the 5V rail from the VGA adapter to the board. Just be careful not to get the gate, which will short the power rail to ground!
The CHUCKWAGON was also in the NSA Playset Deluxe package. This package was auctioned at the EFF auction, theSummit, which sold for over $2,000. A representative from the EFF passed along their thanks:
Thank you very much for your fantastic donation this year! It’s clear how appreciated it was as it is now the highest valued item auctioned at the EFF summits… ever!
I think the two HackRFs in the bucket were of greater value than the CHUCKWAGON though 😉