Embedded Security, Electronics More!
During the pandemic I started a project I long wanted to do, which is to write down many of my lessons learned around building a hardware business. While this has now taken much longer than planned, I m approaching a (hopeful) end of the draft process over the next couple of months. In combination with my [ ]
I bought a Miller 161 STH welder which has a little hand remote control included, and found it was more difficult to use. I wanted to try a welding pedal but the miller ones are much more expensive than other brands, like ArcCaptain, and I found the ArcCaptain one sturdy enough. This post is how [ ]
Back in 2003, I wrote a guide for AVRFreaks.net about low-cost SMD soldering. I had never mirrored this to my website, but recently needed a more permanent link to it for a PCB introduction lecture. The information may no longer be the most current (22+ years later!), but I wanted to keep an official mirror [ ]
My UDM SE can fit various hard drives. Ubiquiti have decided to have a cool tray the hard drive snaps into slides into the UDM, which also means you have to have a very good fit. As it turns out, the fit may not be good enough without shimming the drive out! I used [ ]
I recently got my Glasgow device, which is a rather impressive piece of tech. I followed the Windows installation instructions and it Just Worked , including installing the toolchain! On one computer I needed to use Zadig to force the driver to be libusbK, but on another Windows computer it wasn t needed. In this blog post, [ ]
At RECON2023 I gave a talk about reverse engineering my Samsung Oven. This blog post has slides links to information, with more to come! You can get a copy of the slides below: Oven-Specific Stuff: https://github.com/colinoflynn/samsung-ovens-deconstructedPython Loader for TMP91 Series: https://github.com/colinoflynn/pytoshloadResource CD for TLCS900:…
If you re a bit careless with your CPU (especially if e.g., delidding it) you can knock these resistors off the topside. From measuring a known-good device (but without removing them) I measured the following values as a reference: These all appear to be 0402 sized resistors. If you do damage them, the best source would [ ]
Start of build. Lots of marking drilling of items, which was done on a milling machine with DRO. Having the DRO read-out is useful here rather than marking pieces I found. I had mounted cheap iGaging DROs to a small X2 mini-mill, there is a YouTube Video of how I did this. Here is [ ]
On April 1st, 2022 I gave a workshop at New England Hardware Security Day. This blog post is a quick summary of some of the links to recreate my demos from that talk. Here is a copy of the slides if you d like them: DFA on Raspberry Pi with PicoEMP This demo is pretty simple [ ]
What s inside of Apple s new AirTag? There was already an iFixIt teardown (which I swear was missing a few items that are there now), but of course was curious to see what sort of protection was enabled. Notably the nRF chip used is likely vulnerable to a known bypass of security as well. With that [ ]