Pixelblaze V2 is an advanced LED pattern development engine. It makes it fast and fun to write new patterns with its web-based live editor and highly optimized expression engine. Pixelblaze can store hundreds of patterns and lets you write new ones by entering mathematical expressions or code that update live as you type. No more time consuming compile, upload, test cycles! Pixelblaze is optimized for speed and can produce hundreds of frames per second for extremely smooth animations.
Pixelblaze was designed for APA102 LEDs (aka DotStar). These LEDs are state-of-the-art and provide rock solid updates, faster refresh cycles, and the possibility of a dynamic range well beyond 0-255. Pixelblaze also supports WS2812 (aka NeoPixel) LEDs.
Pixelblaze also supports input from websockets and IO pins. The analog digital converter (ADC) can be used in patterns, as well as 4-5 input/output pins.
In this kit you get the Pixelblaze controller board (pictured), 5mm screw terminals, and 0.1" pin headers. Optionally LEDs may also be added. Some soldering required.
WS2812 (aka NeoPixel) LED support is also new in V2. If you don't need the dynamic range or refresh rates of APA102 LEDs, or have a project already built out with WS2812/NeoPixels, Pixelblaze can now drive these LEDs as well. Most patterns will work without modification and can be calculated on the fly. More complex patterns can use the new arrays support to fully or partially buffer patterns and still work with WS2812's timing requirements.
Also new in V2 is an automatic discovery feature. If enabled and it has an internet connection, Pixelblaze reports it's IP address so that you can find it without having to scan your network. This feature is completely optional, Pixelblaze won't "call home" unless this feature is enabled.
I created Pixelblaze because I wanted a better, faster way to write patterns for LED strips. I've used dedicated LED controllers and microcontrollers like Arduino, and I always felt that the compile, upload, and test iteration was cumbersome. Getting fast frame rates meant using cumbersome fixed-point math libraries as most of microcontrollers are much slower when working on floating-point numbers.
It was designed to be embeddable and integrated into LED art pieces. Because it's 100% programmed over WiFi, the pattern can be written or updated AFTER it has been installed without needing to attach any cables.
If you've used Arduino to generate patterns for LED strips you'll appreciate the live compiler and lightning fast fixed point math engine.
Pixelblaze has WiFi built-in and serves up a web page with a pattern list and pattern editor. Changes in the editor are compiled on the fly and updated in Pixelblaze so you can see your changes live.
On the chip, the LED pattern engine uses high speed fixed point math and pipelines data to the LED strip while the next pixel is being calculated. Frame rates of several hundred frames per second are possible, yet the engine can generate patterns for arbitrarily long strips of LEDs (at a reduced frame rate).
Pixelblaze has an HDR color mode for APA102 LEDs that can produce incredibly high dynamic range of intensities. This means patterns can still look beautiful at very low light settings, adds subtle tones between transitions, and can be driven with a range that is not possible on other LEDs and is not available in most LED driver libraries.
Pixelblaze is easy to use, and can be used as a pattern selector without any math. Out of the box, or embedded in a art piece, Pixelblaze is usable by anyone (some soldering required).
Pixelblaze really shines in the hands of someone that is familiar with programming and is comfortable writing mathematical expressions in a C-like syntax or that can write code. If you are already doing this with a microcontroller, Pixelblaze was made for you.
If you aren't a coding wizard, don't worry, many people with limited programming experience have found Pixelblaze's editor approachable and fun to use. Real-time editor, instant feedback, and expression-centric pattern generation means you won't be pulling your hair out trying to find that missing semicolon or curly brace. Even run-time errors that would usually just crash your program are harmless and show up right in the editor.
Charles | Dec. 23, 2017
Robert P. | Sept. 11, 2017
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