CycloHex is a beautiful set of hexagonally-nested rings with 228 RGB LEDs, six touch pads, and mounting pads for an Adafruit QT Py SAMD21.

I have RGB LEDs in just about every form they come: strips, strings, rings, discs, etc. I constantly seek new and novel forms.

The WS2812C-2020 each only consume a maximum of 15mA, and that's at 100% brightness, solid white color. That's 3.42A for all 228 combined. They are incredibly bright, and I usually only run them at about 25% brightness.

It has solder pads on the back that match the pinout of the QT Py by Adafruit, or XIAO by Seeed. It can be used by any microcontroller via the 5V, GND, and Data In pins. It also has a Data Out pad, for connecting more LEDs on the same data pin.

The six mounting holes are surrounded by capacitive touch compatible pads. They're connected to the A0-A3, A6 & A7 pads/pins on the QT Py footprint. The SAMD21 QT Py supports capacitive touch on these pins.

Case Options

The open case is built with 3mm black LED acrylic diffuser and back plates, black nylon M2 standoffs, and M2 screws. Available as kit or fully-assembled.

Specifications

• Size: 2.96 x 2.73 x .063 inch (75mm x 70mm x 1.6 mm)
• 2 layer printed circuit board
• FR4 substrate
• Black SMOBC (solder mask over bare copper)
• HASL (Hot Air Solder Leveling)
• Designed and assembled in the US by Evil Genius Labs

Parts

Options available to purchase for additional amount:

• Diffuser: 3mm black LED acrylic hexagon.
• Open Case Kit: diffuser, back plate with wall mounting hole, M2 black nylon standoffs, M2 black metal screws.
• Fully Assembled: diffuser, open case, and assembled QT Py by Adafruit controller.

The "Fully Assembled" option requires, but does not include, a USB-C cable and power source (USB port, AC power adapter, battery pack, etc).

If the "Fully Assembled" option is not chosen, these parts are not included, but are required to assemble and use:

• Microcontroller (Arduino, ESP8266, ESP32, etc)
• Wires, connectors, crimp tool, etc.
• Soldering iron, solder, etc.

Parts I used in my builds:

• QT Py by Adafruit(https://electromage.com)
• Chemcast Black LED Acrylic

Instructions