It’s hard work being a werewolf, and I don’t just mean cleaning blood stains out of the carpet or dealing with fleas in the house.

It’s this messy business of the full Moon. Most wall calendars and news sources, if they even mention Moon phases, there’s about a 50/50 chance that they’re off by a full day (explained on the “Moon Facts” page). You might be out at a fancy event wearing a rental tuxedo when things turn weird. There goes your deposit. So awkward.

The only way to get a correct Moon phase for your time and location is with math and science. Our Matrix Portal Moon phase clock lets you know where things stand right here and now, portraying the Moon’s phase more accurately than a printed calendar, and whether it’s currently in the sky or has set.

So now you can prepare. No tux! Stay home and put on a comfortable flannel shirt like werewolves do.

This project requires:

  • Adafruit Matrix Portal M4 board
  • Any of our 64x32 pixel “HUB75” (not NeoPixel) RGB LED matrices (other sizes are not supported by this code)
  • USB C cable
  • USB power supply with output of 2 Amps or more
  • WiFi internet access
  • An insatiable hunger for human flesh

This guide will get the software running on the bare Matrix Portal hardware. Mounting or supporting the clock in an enclosure or frame is left as an exercise to the reader.

Next we’ll connect the Matrix Portal board and LED matrix. Do not over-tighten the screws on the power terminals or they can shear off. This is best done in human form.

Parts

Folks love our wide selection of RGB matrices and accessories, for making custom colorful LED displays... and our RGB Matrix Shields...
$24.95
In Stock
As technology changes and adapts, so does Adafruit. This  USB Type A to Type C cable will help you with the transition to USB C, even if you're still...
$4.95
In Stock

You can use a USB C power supply or a USB micro B with a micro B to C adapter

The official Raspberry Pi USB-C power supply is here! And of course, we have 'em in classic Adafruit black! Super fast with just the right amount of cable length to get your Pi 4...
$7.95
In Stock
Our all-in-one 5V 2.5 Amp + MicroUSB cable power adapter is the perfect choice for powering single-board computers like Raspberry Pi, BeagleBone or anything else that's power...
$7.50
In Stock
As technology changes and adapts, so does Adafruit, and speaking of adapting, this adapter has a Micro B USB jack and a USB C...
$1.25
In Stock

If you'd like your LEDs diffused, some acrylic may help

A nice whoppin' slab of some lovely black acrylic to add some extra diffusion to your LED Matrix project. This material is 2.6mm (0.1") thick and is made of special cast...
$9.95
In Stock

Adafruit carries a number of 64x32 RGB LED Matrices, varying between the space between LEDs (pitch) and whether rigid or flexible. Choose your favorite - larger pitch means the display is larger, width and height-wise but with the same number of pixels, and larger may be easier to read further away. Smaller for near your desk, for example.

Bring a little bit of Times Square into your home with this sweet 64 x 32 square RGB LED matrix panel. These panels are normally used to make video walls, here in New York we see them...
$44.95
In Stock
Bring a little bit of Times Square into your home with this sweet 64 x 32 square RGB LED matrix panel. These panels are normally used to make video walls, here in New York we see them...
$39.95
In Stock
Bring a little bit of Times Square into your home with this sweet 64x32 square RGB LED matrix panel. These panels are normally used to make video walls, here in New York we see them on...
$49.95
In Stock
Bring a little bit of Times Square into your home with this sweet 64x32 square RGB LED matrix panel. These panels are normally used to make video walls, here in New York we see them on...
$64.95
In Stock
If you've played with multiplexed RGB matrices, you may have wondered "hey, could we possibly manufacture these on a thin enough PCB, so it's flexible?" and the...
Out of Stock
If you've played with multiplexed RGB matrices, you may have wondered "hey, could we possibly manufacture these on a thin enough PCB so it's flexible?" and the answer...
$79.95
In Stock

This guide was first published on Sep 23, 2020. It was last updated on Sep 23, 2020.

This page (Overview) was last updated on Apr 26, 2021.

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