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Aaron Parecki

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#electronics

  • Celebrating The Infinity Of Pi Day With Thermochromic Foil | Hackaday (hackaday.com)
    #electronics #pi
    Mon, Mar 21, 2022 11:13am +01:00
  • How do CPUs read machine code? — 6502 part 2 (www.youtube.com)
    #cpu #electronics
    Sun, Nov 3, 2019 8:55pm +01:00
  • I made a smart watch from scratch (imgur.com)
    #smartwatch #electronics
    Mon, Oct 28, 2019 4:04pm -07:00
  • Driving a scrolling LED badge from a Raspberry Pi | Dave Akerman (www.daveakerman.com)
    #led #raspi #electronics
    Sat, Oct 12, 2019 10:44am -07:00
  • dekuNukem/daytripper: A Multifunctional Laser Tripwire (github.com)
    #electronics #security
    Mon, Sep 9, 2019 8:43pm -05:00
  • First Draft: Sims Needs Meter | Antoinette J. Citizen (antoinettejcitizen.wordpress.com)
    #sims #electronics #projects
    Mon, Sep 2, 2019 7:28pm -07:00
  • Strobeshnik HDD Clock (sensi.org)
    "There's an IR LED and a phototransistor pair mounted under the outer rim of the platter. A thin piece of black foam absorbs IR light and it generates a fairly sharp negative pulse on the output of the phototransistor."
    #clock #art #electronics
    Wed, Aug 7, 2019 12:32pm -07:00
  • Control a Macintosh Classic CRT with a BeagleBone Black – Part 1 – nerdhut (nerdhut.de)
    #apple #macintosh #crt #electronics #vga #hack #art
    Sun, May 19, 2019 7:16pm -07:00
  • New Tools for Edge Computing - News - SparkFun Electronics (www.sparkfun.com)
    #electronics
    Wed, Mar 6, 2019 10:17pm -08:00
  • Building an Epaper Badge with a Raspberry PI Zero – Coinmonks – Medium (medium.com)
    #epaper #raspi #badge #electronics
    Thu, Feb 14, 2019 9:30am -08:00
  • I turned a Furby into an Amazon Echo. Introducing: Furlexa (howchoo.com)
    #electronics #furby #alexa #amazon #echo #hacking
    Wed, Nov 29, 2017 8:27am -08:00
  • MagicMirror² (magicmirror.builders)
    1 reply
    #mirror #homeautomation #electronics
    Wed, Nov 22, 2017 9:58am -08:00
  • Building a Desk Bell for Kickstarter Alerts with a Raspberry Pi Zero

    Here is a writeup of how I built a desk bell for Kickstarter pledge alerts using a Raspberry Pi Zero and a solenoid.
    continue reading...
    24 likes 2 reposts 1 reply 5 mentions
    #raspi #electronics #hardware #kickstarter
    Mon, Nov 13, 2017 10:28am -08:00
  • driving a solenoid from an arduino (playground.arduino.cc)
    #arduino #electronics
    Tue, Oct 17, 2017 5:46pm -07:00
  • Raspberry Pi GPIO Pinout (pinout.xyz)
    #raspi #electronics #reference
    Tue, Oct 17, 2017 5:45pm -07:00
  • Aaron Parecki
    Every time I think I can do an electronics project I end up 😔. Tried to hook up a @digistump Oak and can't even get it to connect to wifi!
    Portland, Oregon, USA
    #electronics
    Wed, Aug 2, 2017 1:34pm -07:00
  • Particle Tutorials | Google Maps (docs.particle.io)
    #particle #gps #google #maps #electronics
    Wed, May 24, 2017 7:42am -07:00
  • How to weigh your cat! – the IoT version | schrankmonster blog (www.schrankmonster.de)
    #arduino #electronics #project #cat #scale
    Sun, Apr 23, 2017 11:22am -07:00
  • America's Television Graveyards (motherboard.vice.com)
    #recycling #electronics
    Sat, Apr 22, 2017 6:31pm -07:00
  • Barnaby Walters https://waterpigs.co.uk

    The old Fitbit and Fuelband which Aaron Parecki gave me a few years ago (thanks Aaron!) don’t hold a charge anymore. The Fitbit battery is near impossible to replace, and with the Fuelband I decided that as there’s no way of loading custom firmware (which would let me get at data without an internet connection and proprietary apps), it wasn’t worth trying to get replacement batteries. So before throwing the devices away, I took them apart.

    I didn’t find out much which I hadn’t already seen in teardowns, but these devices have such strange form factors that it was fascinating to see the engineering up close.

    The rubber coating comes off very cleanly. Here you can see some of the funny curved traces used on flexible circuit boards:

    The LED array, with ā€œJust Do Itā€ written on the top of the PCB (invisible to the end user). On the sections of flex between the more solid boards you can see the unbelievably fine traces:

    On the back of the LED matrix section, with a part number. To the right you can see the jaggedy bluetooth antenna trace:

    The fitbit isn’t so interesting. Removing the cap with a heatgun reveals a tiny circuit board with a tiny battery and vibrating element.

    I also opened up the dock, as I noticed that the USB cable was power only, with no possibility of wired data transfer. The third pogo pin must be for the reset switch, which is mounted in the dock. There’s a little IC in there too, but I was more interested in seeing how the pogo pins were attached to the board. Turns out they’re just soldered straight on:

    I’d love to have been able to flash custom firmware to the Fuelband, it’s a lovely bit of hardware, and manufacturing something like that is completely out of the question for a hobbyist. There are so many fun things which could be done with a device equipped with an LED matrix, accelerometers and bluetooth — a wearable MIDI controller, for example.

    That possibility would also have made replacing the batteries worth doing, and in doing so saved the device from the landfill. Free software and open hardware isn’t just political, it’s better for the environment.

    Portland, Oregon
    #photo #photos #teardown #electronics #fuelband #fitbit
    Fri, Mar 24, 2017 11:22pm +03:00 (liked on Fri, Mar 24, 2017 1:31pm -07:00)
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Hi, I'm Aaron Parecki, Senior Security Architect at Okta, and co-founder of IndieWebCamp. I maintain oauth.net, write and consult about OAuth, and participate in the OAuth Working Group at the IETF. I also help people learn about video production and livestreaming and dabble in product design.

I've been tracking my location since 2008 and I wrote 100 songs in 100 days. I've spoken at conferences around the world about owning your data, OAuth, quantified self, and explained why R is a vowel. Read more.

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