VIDEO: NeoPixels and DotStars

Given their resemblance, why choose DotStars over NeoPixels? Some microcontrollers can’t produce NeoPixels’ steady 800 KHz data stream, and others might lose track of time. A separate clock signal helps DotStars receive at several megahertz or as slow as your device needs.

The Adafruit shop is packed with all shapes and sizes of NeoPixels and DotStars!

While controlling DotStars with vintage Atari BASIC may be possible, though not really practical, the demonstration did provide a Muybridge-esque answer to something I’ve wondered: does each DotStar sequentially assume its new color as data is received, or does the whole strip “latch” all at once with the end-of-data bits? Never got around to doing a low-speed test until now. And the answer is: the pixels change sequentially, but when used at typical multi-megahertz data rates it looks instantaneous.


As 2022 starts, let’s take some time to share our goals for CircuitPython in 2022. Just like past years (full summary 2019, 2020, and 2021), we’d like everyone in the CircuitPython community to contribute by posting their thoughts to some public place on the Internet. Here are a few ways to post: a video on YouTub, a post on the CircuitPython forum, a blog post on your site, a series of Tweets, a Gist on GitHub. We want to hear from you. When you post, please add #CircuitPython2022 and email circuitpython2022@adafruit.com to let us know about your post so we can blog it up here.

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

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CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


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