Our space Unicorns are very beautiful, all-in-one, RP2040-powered LED matrices perfect for conveying information fabulously (or for sprucing up your desktop, making space or Imaginarium). There are a ton of features aboard, here are some of our favourites!
Loads of RGB LEDs, all with individual colour and brightness control. We're in mad love with these big bright squircular LEDs with their rounded apertures and built-in diffusion.
Looks great on video - invoking RP2040 magic means we can update the LEDs really quickly (we measured around 300 fps at 14-bit precision). This means there's no nasty strobing, artifacting or brightness stepping when it's filmed, so it's perfect for adding to the background of your streaming setup.
2.4GHz wireless connectivity (courtesy of the Raspberry Pi Pico W) so you can use it to display all sorts of interesting data from the internet.
There's also an onboard amp and little speaker for bleepy alerts and *futuristic noises* and a battery connector so you can power it without it having to be tethered to a USB port. Every Unicorn comes with a pair of sleek little metal legs so it can stand up on its own (and has a selection of mounting holes if you'd prefer to do something else).
Use it to make a very fancy clock, a very fancy weather display or a very fancy output for sensors (other very fancy use cases are available).
Features
Raspberry Pi Pico W Aboard
Dual Arm Cortex M0+ running at up to 133Mhz with 264kB of SRAM
To make it real easy to get started, all Unicorns come pre-loaded with MicroPython and a demo reel of examples.
If you're using C/C++ or pirate-brand MicroPython to program your Unicorn, you'll have access to our PicoGraphics library, which includes handy functions for displaying text, shapes and images. You can also control the colour and brightness of each pixel individually, of course!
Power consumption stats! We measured Galactic and Cosmic Unicorn as consuming just over 1A at maximum brightness, full white. When choosing a battery, consider that the LEDs will look their absolute best when they have access to at least 3.6V of power. At lower voltage levels you will start to see the blue elements of the LEDs fading out - this starts to become very noticeable at 2.9V and below. For best results when running on battery, we'd suggest using a chunky LiPo (check out the extras for some suggestions).
Note that Unicorns have no battery charging hardware onboard - this is so you can use either alkaline or LiPo batteries safely. You'll need to charge up your LiPo battery with a separate battery charger (we like LiPo Amigo).
Squircle alert! Some batches of Unicorns have LEDs with more rounded apertures (though the LED specs and brightness remain the same). They all look good, but if you want a perfectly visually matched pair (or stable) of Unicorns it's probably best to buy them at the same time.
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RG
Richard G
Walsall, United Kingdom
Pico W Smart LED Matrix – Galactic Unicorn (53x11 - 583 pixels)
Awesome bit of kit. Doesn't take long to get some interesting projects running
Pico W Smart LED Matrix – Galactic Unicorn (53x11 - 583 pixels)
Bought as a gift for my son who wants to recreate a scrolling 'next stop' announcement like he's seen on the busses here. Learning the basics of Python has been a really fun activity for us to do together. The Galactic Unicorn is very well made, excellent build quality, and really easy to get started with using the included MicroPython firmware and PicoGraphics library, along with the code examples on their GitHub page.
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