Embedded environment monitoring.

  electronics exocortex hardware humidity libreops microcontrollers projects python temperature

Disclaimer: This post has lots of links to the Adafruit website.  There are no referral links, I received no consideration, I just buy parts from there and do cool things with them.

A couple of weeks months ago I did a writeup of a prototype environment monitoring device for my office built out of a Raspberry Pi Zero W and some off the shelf components.  In the time since I've found time here and there to work on the embedded version, which doesn't use a full computer system but a microcontroller with just enough functionality to drive a couple of …

Read more...

Still on lockdown.

  life quarantine covid computers coronavirus pictures projects retrocomputing

All of March and most of February were spent in lockdown in the Bay Area.  I've no idea what's still open or not because the last time I was able to go anywhere outside of the house was two weeks ago.  The walk I'd planned for last weekend was cancelled on account of rain, and all things considered I'd rather not risk lowering my immune system a couple of points with cold and damp if I can help it.  Plans for the next 12 to 18 months have been unilaterally cancelled.  I've already sold my Thotcon 0x0b badge even though …

Read more...

War walking with a Raspberry Pi 0 W.

  projects raspberrypi wardriving mapping kismet

You've probably noticed from the datestamps of my last couple of weeks worth of posts that they were autoposted by an agent.  This is because work has taken a turn for the extremely busy and I haven't had the time or the energy to write anything in particular; certainly nothing really useful.  Rather than wasting everybody's time I decided to relax a bit by picking up an older project, namely a new war-walking rig, and making it work.  Since I wrote that original post a few more security updates have come out for my phone and broke not only the …

Read more...

It's a bit of a surprise when I don't have enough processing power.

  projects raspberrypi wardriving wireless fail

Earlier this year I got back into urban hiking by taking up war walking again around home.  Not too long after that, I started picking up buzz that upcoming versions of Android are specifically not going to make it easy (or probably possible) to wardrive or war walk by changing how the wifi drivers work.  By this, I mean they're making it possible to trigger a wireless scan once every two minutes instead of whenver you ask it to.  Unsurprisingly, if you read through that ticket's comments this is going to break a lot of other applications out there, but …

Read more...

Makerfaire 2015

  bay_area hackers makerfaire makers pictures projects

If you've never been to Makerfaire, it's a rite of passage for geeks of all kinds. In fact, I'd recommend that everyone attend their nearest Mini-Makerfaire at least once because you'll see all manner of weird, wonderful, and inspiring things on display. I ran a table at the one in Silver Spring, Maryland back in 2013 with HacDC and had a ball. Anyway.

I had a chance to attend the original Makerfaire in the Bay Area a few weekends ago and, though it was a significant journey on BART and on a shuttle bus it was well worth it. There …

Read more...

A 3D printed laser cutter, aerosol solar cells, and reversing neural networks.

  ai image_recognition laser_cutters microfacture nanotechnology neural_networks open_source power_generation projects solar

3D printers are great for making things, including more of themselves. The first really accessible 3D printer, the RepRap was designed to be buildable from locally sourceable components - metal rods, bolds, screws, and wires, and the rest can be run off on another 3D printer. There is even a variant called the JunkStrap which, as the name implies, involves repurposing electromechanical junk for basic components. There are other useful shop tools which don't necessarily have open source equivalents, though, like laser cutters for precisely cutting, carving, and etching solid materials. Lasers are finicky beasts - they require lots of power, they …

Read more...

There will be a Mini-Maker Faire in Silver Spring, MD.

  announcement arts crafts hacdc hacking maker_faire making maryland projects silver_spring

I haven't seen this get a whole lot of love recently, so I thought I'd boost the signal in some small way.

On Sunday, 29 September 2013 between 1200 and 1700 EST5EDT there will be a Mini Maker Faire in Silver Spring, Maryland. If you've never heard of Maker Faire, it's a series of events organized and thrown by Make Magazine that are collectively billed as the Greatest Show-and-Tell on Earth. At a Maker Faire you can see everything from 3d printing demonstrations to singing Tesla coils, combat robots to kite photography, and everything in between. Mini-Maker Faires are, as …

Read more...

HacDC at the USA Science and Engineering Festival.

  booth byzantium dc engineering exhibits festival hacdc hackers kids projects science

A week or two ago it was announced on one of the HacDC mailing lists that we'd been given a pair of tables at the second USA Science and Engineering Festival which was held this past weekend. It was a call to members who wanted to exhibit their work during the festival, and not a few of us threw our headgear into the ring. Rather than hold a Byzantium development sprint this weekend Sitwon, Haxwithaxe, and I met at HacDC to mass-produce demo CDs of Byzantium Linux to give out at our table along with the HacDC stickers, postcards, and …

Read more...