ShareBrained Technology

Open-Source Hardware from The Past and The Future.

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Iridium Antenna Hack

My Iridium antenna hack worked better than I expected!

A few months ago, I watched a great 32C3 talk about reverse-engineering the Iridium satellite communication network (video). I wanted to join in the fun, but Iridium signals are weak and require a specialized antenna mounted on a ground plane. My plan was to design a custom circuit board with a patch antenna, amplifier, and filter. I ordered some parts, and they sat on my desk because I didn’t…

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PortaPack: It Is Time

PortaPack: It Is Time! Now in stock at: https://sharebrained.myshopify.com/products/portapack-for-hackrf-one

The PortaPack for HackRF One is now available! Visit the ShareBrained Store to have a look at the features, current state of the firmware, and all the other things you should know before you buy. Thank you to everybody for your support and patience. Half the reason I wanted to develop the PortaPack is to learn from the experience.…

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PortaPack Shipping to HackRF Kickstarter Backers This Week!

PortaPack shipping to 50 HackRF Kickstarter backers this week!

I’m pleased to announce that I will be shipping PortaPacks to HackRF Kickstarter backers this week. Announcement e-mails have already gone to the 50 backers. If you’re one of the backers and haven’t received your e-mail, please leave a comment here and we’ll come up with another way to make contact — I need to make sure I have the right shipping addresses! It will be another week or two before…

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NSA Playset: USB at ShmooCon 2015

Video of our "NSA Playset: USB" talk at ShmooCon 2015, where we compromise USB in multiple ways.

At ShmooCon 2015, Dominic Spill, Michael Ossmann, and I discussed our progress recreating USB implants and interception devices in the NSA ANT catalog. Dominic demonstrated USBProxy, a USB man-in-the-middle device for USB 2.0. Mike showed his TURNIPSCHOOLprototype, an implant built into a USB cable that allows remote access to a host computer’s USB ports. I showed my progress on a USB 3.0…

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Zach and I enhanced the lighting at Ada's Technical Books in Seattle, with a BeagleBone, an FPGA, and some JavaScript. In late 2013, Zach Archer and I teamed up to light up the book stacks at the new…

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My talk about automotive Tire Pressure Monitoring Systems at ToorCon 2013. Getting caught up... I gave a talk at ToorCon 2013 on my exploration of the Tire Pressure Monitoring System…

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PortaPack Update, October

PortaPack manufacturing: Two steps forward... And wait.

I have all the parts and PCBs for 500 units. I am now waiting on the assembler to start cranking them out. I wish I could give a firmer update at this point, but the assembler has not yet scheduled assembly. Once assembly starts, I’ll post another update and let you know how it’s going. Maybe with pictures, even!

The PortaPack H1 monitoring automotive Tire Pressure Monitoring System (TPMS)…

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PortaPack Manufacturing Update

The PortaPack H1 is progressing. The hardware design is stable — just tiny tweaks at this point. I have purchased and received enough components to build 250 units. There are a few components I’m having trouble sourcing, but have some good leads and am optimistic I’ll have that resolved by early next week. I have several quotes for assembly and have picked my preferred assembler.

So what’s left?…

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PortaPack for HackRF One is Imminent!

With the Kickstarter HackRF Ones shipping out soon, I’ve made some progress on the PortaPack. I have a revised prototype, adapted to the HackRF One.

The PortaPack for HackRF One is Operational

I’ve added a few features to the Jawbreaker prototype I showed last year. Here’s what new the PortaPack has to offer:

240 x 320 RGB LCD. High update rate permits display of spectrum, time-domain data, and…

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HackRF Jawbreaker PortaPack Lives!

See my HackRF portable spectrum analyzer hardware at DEF CON and Black Hat:

I got my LCD + audio + controls “shield” for the HackRF Jawbreaker working reasonably well, and wanted to show it off, doing wideband spectrum analysis:

I’m bringing this thing to DEF CON and Black Hat, and would be happy to show it to anybody who’s…

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My Robotron Autopsy talk slides are posted. Sorry about the giant PDF...

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ShareBrained Hijacks Hak5, Twice!

ShareBrained Hijacks Hak5 -- twice! The HackRF spectrum analyzer and Chronulator both make an appearance.

A few weeks ago, Darren Kitchen of Hak5 rolled through Portland on his Hack Across America tour. I showed him around my neighborhood, and talked with him a bit about Mike Ossmann’s HackRF project and my Chronulator kit. Of course, Darren had a camera…

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Wireless Microphones and HackRF

HackRF News flash: Wireless microphones are *still* insecure.

I and my HackRF software-defined radio spent some time at a big software conference recently. Because I can’t resist gently sticking my nose where it doesn’t belong, I decided to investigate the wireless microphones being used on the conference stages.

If…

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Details about my Radio Spectrum Analyzer at Maker Faire.

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My First 8-Layer PCB, back from manufacturing. Anxiety... Building...

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Maker Faire attendee knows proper Robotron playing style.

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Maker Faire 2013

I showed two hacks this year: The HackRF radio spectrum analyzer, and Robotron on an FPGA. More details soon! Until then, here are links to more information:

Radio Spectrum Analyzer:

HackRF Software-Defined Radio

Noritake GU384X32L-3900vacuum fluorescent…

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