Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.
  • Home Home Home, current page.
  • About

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
bunniestudios's profile
bunnie
bunnie
bunnie
@bunniestudios

Tweets

bunnie

@bunniestudios

Good at following directions. Bad at obeying rules.

bunniestudios.com
Joined January 2010

Tweets

  • © 2018 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    bunnie‏ @bunniestudios Jun 28

    Working with vendors today! That's the founder of WorldSemi in the center, Mr. Yin. Also got to see their super tiny 2020 LEDs in action...those are fully addressible RGB LEDs in a 2x2mm package, connected with enamel wire for the demo. Thanks @Gavin_Chao for introducing!pic.twitter.com/DVqznmTgeT

    4:25 AM - 28 Jun 2018
    • 6 Retweets
    • 69 Likes
    • Syssiphus Zlatan Todorić buZz Troy SK Mats Engstrom Kenneth Lim Nils Hitze Tessa technopagan ⁧✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨
    6 replies 6 retweets 69 likes
      1. New conversation
      2. quaerereverum‏ @quaerereverum Jun 28
        Replying to @bunniestudios @Gavin_Chao

        Excellent! What is the protocol? Hopefully something self-clocking. The WS2812 devices are a complete PITA because of the their fixed timings. Any spec sheets available? And what sort of price and availability?

        1 reply 0 retweets 0 likes
      3. bunnie‏ @bunniestudios Jun 28
        Replying to @quaerereverum @Gavin_Chao

        http://www.world-semi.com/Certifications/details-139-4.html …

        1 reply 0 retweets 0 likes
      4. quaerereverum‏ @quaerereverum Jun 28
        Replying to @bunniestudios @Gavin_Chao

        Cheers Bunnie!

        1 reply 0 retweets 0 likes
      5. DrTune‏ @drtune Jun 28
        Replying to @quaerereverum @bunniestudios @Gavin_Chao

        WS timings are nothing like as strict as you may think. Seehttps://goo.gl/6H9kN2 

        1 reply 0 retweets 1 like
      6. quaerereverum‏ @quaerereverum Jun 28
        Replying to @drtune @bunniestudios @Gavin_Chao

        Many thanks for that @drtune! I wished i’d seen this before writing tight assembler code to meet the timing criteria in the spec :-( Even so, i’d still love to see a self-clocked protocol, so that I can transmit NeoPixel data as fast/slow as I need to achieve desired frame rate.

        1 reply 0 retweets 1 like
      7. DrTune‏ @drtune Jun 28
        Replying to @quaerereverum @bunniestudios @Gavin_Chao

        SPI or I2S interfaces are trivially easily used to drive WS strings btw. You just output 4 bits per data bit, at a clk of (I forget, 330ns I think). As long as you can keep the fifo full it works fine - I2S tends to be better under linux; required to be glitch-free unlike SPI

        1 reply 0 retweets 0 likes
      8. quaerereverum‏ @quaerereverum Jun 28
        Replying to @drtune @bunniestudios @Gavin_Chao

        Once again @drtune thank you so much for sharing your knowledge; VERY greatly appreciated.

        0 replies 0 retweets 1 like
      9. End of conversation
      1. New conversation
      2. Piotr Esden-Tempski‏ @esden Jun 28
        Replying to @bunniestudios @Gavin_Chao

        CC @LoialOtter you were asking about 2020 LEDs? I think you wanted just pure RGB non addressable ones but still you might find this interesting. ^.^

        1 reply 0 retweets 1 like
      3. Tweet unavailable
      4. Piotr Esden-Tempski‏ @esden Jun 28
        Replying to @quaerereverum @bunniestudios and

        Timing is not really a big issue here, as @LoialOtter will be driving them from an FPGA… I recommend looking into those, they are fun :D

        1 reply 0 retweets 0 likes
      5. quaerereverum‏ @quaerereverum Jun 28
        Replying to @esden @bunniestudios and

        Hi Piotr, yes absolutely. I bought myself and iCEstick a while back and recently started “programming” it. My purpose in getting it was to model hardware to map from I2C/SPI to NeoPixel devices. As someone with an EE background but long s/w experience, Verilog melted my mind.

        1 reply 0 retweets 0 likes
      6. Dave Vandenbout‏ @devbisme Jun 28
        Replying to @quaerereverum @esden and

        You might look at my pygmyhdl tool that does simulation & synthesis in a Jupyter notebook. 20 minutes from sfw download to a working LED blinker on the iCEStick. No Verilog. https://xesscorp.github.io/pygmyhdl/docs/_build/singlehtml/index.html …

        2 replies 1 retweet 5 likes
      7. quaerereverum‏ @quaerereverum Jun 29
        Replying to @devbisme @esden and

        Ok Dave, you shamed me into actually reading (rather than bookmarking) your pgmyhdl docs; absolutely excellent. I learned so much, especially the hierarchy example with the comparison of gates used, and the PWM variants. Many thanks! I'll certainly recommend them to FPGA newbies.

        1 reply 0 retweets 1 like
      8. Dave Vandenbout‏ @devbisme Jun 29
        Replying to @quaerereverum @esden and

        Thanks! I learned shaming from my mother. One word of warning: pygmyhdl only works with Python 2.7 and 3.5. I haven't gotten around to porting it to 3.6 or 3.7. The underlying MyHDL works everywhere, however.

        0 replies 0 retweets 1 like
      9. End of conversation
      1. Fernando Segura‏ @fs9 Jun 28
        Replying to @bunniestudios @Gavin_Chao

        Wow, addressable 2020s? Can't wait to see matrices using those.

        0 replies 0 retweets 1 like
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. New conversation
      2. DrTune‏ @drtune Jun 28
        Replying to @bunniestudios @Gavin_Chao

        Please please please may we get some video of the fab/etc WorldSemi uses to make WS2812s etc. I expect @strangepartscom would be keen to bring his camera (and respect secrecy). Thank you!

        1 reply 0 retweets 1 like
      3. 1 more reply
      1. Risknc‏ @risknc Jun 28
        Replying to @bunniestudios @Gavin_Chao

        Rad, meeting with the guy behind worldsemi sounds amazing, can't believe they managed a 2020 package. Bravo!pic.twitter.com/Ddl8cspQgg

        0 replies 0 retweets 0 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. New conversation
      2. Robert Foss‏ @memcpy_io Jun 28
        Replying to @bunniestudios @Gavin_Chao

        Very cool. I've used the APA102 2020 ICs, and they're very pretty. But the quiescent current is high 1.0-0.7mA, and furthermore unspec'ed.

        1 reply 0 retweets 0 likes
      3. Robert Foss‏ @memcpy_io Jun 28
        Replying to @memcpy_io @bunniestudios @Gavin_Chao

        The upcoming APA104 1515 are said to have 0.3mA quiescent current, but the APA102 1515 ICs don't have the Qc specified at all.

        1 reply 0 retweets 0 likes
      4. Robert Foss‏ @memcpy_io Jun 28
        Replying to @memcpy_io @bunniestudios @Gavin_Chao

        Overall, even 0.3mA is rather high for wearables, and I would like to see something below 0.1mA.

        1 reply 0 retweets 0 likes
      5. Robert Foss‏ @memcpy_io Jun 28
        Replying to @memcpy_io @bunniestudios @Gavin_Chao

        An alternative solution would be if the APA10X series of LEDs behaved better on power on, and didn't just light up in a random color, but rather waited for a valid signal.

        1 reply 0 retweets 0 likes
      6. End of conversation

    Loading seems to be taking a while.

    Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

      Promoted Tweet

      false

      • © 2018 Twitter
      • About
      • Help Center
      • Terms
      • Privacy policy
      • Cookies
      • Ads info