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Dustin Sallings
Works at Google
Lives in Santa Clara, CA
880 followers|1,645,753 views
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Dustin Sallings

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Dustin Sallings

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Where was this?
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Two rivers park on the Arkansas river in little rock.
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Worked on some LED control junk again.  Version 1 on the breadboard and then miniaturized into a wire.

This isn't my design, but it was a decent amount of fun anyway.  It'll operate up to 50 WS2812 addressable LEDs using a fairly simple serial protocol as input.  I drove a test LED (just one, because I was kind of dumb) from my bus pirate.

The original code, idea, etc... is here:
https://github.com/TauLabs/TauLabs/wiki/PicoC-Project:-RGB-LEDs

I changed the protocol a bit because I wanted to be able to directly address LEDs at will instead having to communicate the entire state of the world on every write.  (one line change)
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I spent a forever soldering and wiring up an ICSP harness for a dev Opensky RX so I could work on the failsafe code.  I figured it was worth writing a bit about that and putting up some pictures and stuff.

http://dustin.sallings.org/2015/06/10/opensky.html
I've been doing a lot hardware stuff recently. I didn't know much about hardware when I started and I like learning, so this is a lot of fun for me. Let me introduce you to a project I've been doing some work on lately called Opensky. Opensky is an open source hardware and software RC receiver ...
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Spent some time trying to make small lights for something. Both of these styles worked OK, but the smallest resistor I had was a 220, so this LED wasn't quite bright enough at my target voltage.
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+Jan Mercl ha, yeah.  I did briefly consider the security implications of having a picture of my fingerprint on the internet.  I try to avoid fingerprint scanners, though.  I don't like not being able to change my auth info.
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Google Photos stylized this. I don't know what that means, but it's kind of neat.
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Dustin Sallings

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I don't know what most people do with their retirement, but my parents are fighting an oil pipeline.

Yesterday they sued the State of Iowa to stop the illegal seizure of land for the Bakken Oil Pipeline.
The plaintiffs' lawyers contend the Iowa Utilities Board does not have the authority to grant eminent domain rights to an interstate crude oil pipeline company.
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I had a dance recital and ended up driving all most of the day yesterday, but I managed to squeeze in some weekend projects.

http://dustin.sallings.org/2015/06/28/ws2182.html
I've been playing with WS2812 addressable LEDs for a few days now. They're kind of neat. You can read a lot about these in Adafruit's Neopixel Überguide, but there are a wide variety of these things available and lots of interesting applications. I ordered a handful from Adafruit last time I ...
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That's quite awesome.

I tried to do a time lapse of an amazing sunset in El Nido, but my GoPro crashed. That was disappointing.
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I started learning the Saleae Logic analyzer API Monday.  I wrote a PWM[0] and CPPM[1] analyzer and rigged them up to a flight controller to watch how long it takes for various inputs to turn into outputs.

For a C++ API, it's actually been pretty fun.

[0]: https://github.com/dustin/logic-pwm
[1]: https://github.com/dustin/logic-cppm
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Just a photo sphere.
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Dustin Mitchell's profile photoMatt Ingenthron's profile photo
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Nicely done.
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Things I had to make or repair today to support my habit^W hobby.

1. New wiring for my video stuff (got the twist to stick, had to reshape the connector and housing)
2. 433MHz monopole
3. Super tiny 2.4GHz rx (mostly did firmware work on that tonight since I did the bulk of the assembly earlier this week)
4. Slightly less hacky charging cable for my LiFe battery since the thing I was doing with alligator clips and a balance breakout board started smelling bad and stopped passing electricity through it)
5. That damned reset pin for icsp on the micro rx (broke it off in development, so I'm calling it again since it's such a pain)
6. LED repair.

I also ended up replacing the fpv camera on my 250.

The rx firmware stuff is getting nice. I added an auto bind mode when it's coming up clean (I.e., isn't bound to anything). Might make sense to do OpenLRS style binding.
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+Pim van Pelt​ my fork is on github.com/dustin -- I think it's OpenSkyRX. It's not the prettiest, but I've been using it on my micro, so I figured it's good enough for my 190mm build.
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In his circles
338 people
Have him in circles
880 people
Mathieu Lonjaret's profile photo
sharon raju's profile photo
Joyce Hsu's profile photo
Will Francis's profile photo
Yosyp Korol's profile photo
Jason Smith's profile photo
Robert Fisher's profile photo
Rit Li's profile photo
Lorenzo Cavalle''s profile photo
Work
Occupation
Programmer
Skills
I write programs in lots of languages. I've written enough bugs that I can often recognize which ones other software has run into.
Employment
  • Google
    Software Engineer, SRE, 2014 - present
  • Couchbase, Inc.
    Cofounder/Chief Architect, 2009 - 2014
  • Caring.com
    Software Engineer, 2007 - 2008
  • Teneros
    Software Engineer, 2006 - 2007
  • 2Wire
    Technical Lead, 2002 - 2006
  • Beyond.com
    Senior Systems Architect, 1998 - 2002
Basic Information
Gender
Male
Story
Tagline
Probably writing code.
Introduction
I make stuff.  You can find much of it on github.
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Santa Clara, CA
Previously
Little Rock, AR - Conway, AR - Fort Smith, AR - Sunnyvale, CA - Austin, TX - Orlando, FL - Apache Junction, AZ - Springerville, AZ
I generally don't like Japanese food. I'll probably be back soon.
Public - a year ago
reviewed a year ago
One of my favorite dinner spots.
Atmosphere: Very GoodDecor: Very GoodService: Excellent
Public - 2 years ago
reviewed 2 years ago
This place is hard to get into for a reason.
Food: ExcellentDecor: GoodService: Very Good
Public - 2 years ago
reviewed 2 years ago
37 reviews
Map
Map
Map
Food: GoodDecor: GoodService: Very Good
Public - 2 years ago
reviewed 2 years ago
If you do Yoga and you ever go to Manhattan, you're already a repeat customer.
Public - 3 years ago
reviewed 3 years ago