Adafruit
Adafruit NeoPXL8 FeatherWing for Feather M0 - 8 x DMA NeoPixels!
Drive massive NeoPixel installations without blocking your code. The NeoPXL8 FeatherWing enables 8 concurrent DMA NeoPixel strands from a single Feather M0, ...
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Drive massive NeoPixel installations without blocking your code. The NeoPXL8 FeatherWing enables 8 concurrent DMA NeoPixel strands from a single Feather M0, with up to 250 pixels per strand (2,000 total) — all running in the background via hardware DMA so your code keeps executing.
The wing handles 3.3 V to 5 V level shifting with an onboard switch-cap converter and includes 100 Ω series resistors on each output to reduce ringing on long wiring runs. Also available for the Feather M4, or see the standalone NeoPXL8 Friend level shifter board.
Key Features
- 8 DMA NeoPixel Outputs – Drive 8 independent strands simultaneously via hardware DMA on the ATSAMD21's TCC0 timer
- Up to 2,000 Pixels – 250 pixels per strand (theoretical max 340, but uses all available RAM)
- Built-In Level Shifting – 3.3 V to 5 V conversion with onboard switch-cap converter
- 100 Ω Series Resistors – Reduces signal ringing on long wiring runs
- Non-Blocking – DMA handles all pixel data output, freeing your code to run simultaneously
Connection Options
Choose your preferred wiring method (solder in the connectors you need):
- 2×8 Header – Ground and 5 V-logic signal pairs for each strand
- 2× RJ-45 Jacks – Ethernet-style connectors with ground and signal per twisted pair (OctoWS2811-compatible pinout)
Pin Mapping
- Output #0: A3 (fixed)
- Output #1: A4 (fixed)
- Output #2: Digital #10 or Serial TX (selectable)
- Output #3: Digital #12 or Serial RX (selectable)
- Output #4: SPI MOSI or I2C SDA (selectable)
- Output #5: Digital #5 or SPI SCK (selectable)
- Output #6: Digital #11 or SPI MISO (selectable)
- Output #7: Digital #13 (fixed)
Power
NeoPixel power is not routed through the FeatherWing — the PCB copper would be too limiting for the currents involved. Provide 5 V power directly to your NeoPixel strips using terminal blocks or bus bars connected to a dedicated 5 V supply.
Compatible Feather M0 Boards
- Feather M0 Basic Proto
- Feather M0 Express
- Feather M0 Adalogger
- Other ATSAMD21-based Feather M0 boards
Ideal For
- Large-scale NeoPixel installations (1,000+ pixels)
- Art exhibits and stage lighting
- Multi-strand costume and wearable projects
- Fast-refresh LED effects and animations
- Projects that need to run other code while updating pixels
Package Contents
- 1× Adafruit NeoPXL8 FeatherWing for Feather M0 (connectors not soldered)
Resources
- NeoPXL8 Arduino Library – Library and example code on GitHub
- NeoPixel Uberguide – General NeoPixel wiring and usage guide
Jargon buster
Plain-language definitions for the technical terms used above.
- FeatherWing
- A FeatherWing is an add-on board made to plug into the Feather microcontroller board layout. Knowing a product is a FeatherWing helps you check whether it will physically and electrically fit your Feather-style mainboard.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- NeoPixel
- A type of addressable LED system where colour data is sent along a single digital data line from one LED or controller to the next. Compatibility matters because the timing and signal format must match for the lights or driver board to respond correctly.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
- RAM
- RAM (random-access memory) is fast, temporary memory a device uses for working data while it is running; in its common volatile form, its contents are lost when power is removed. Some devices offer a mode that applies settings to RAM only, which is handy for testing changes temporarily because they are not stored permanently and disappear at power-off.
- RX
- RX means receive, usually showing data being received by the board. An RX indicator LED can help with troubleshooting USB or serial communication.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
- TX
- TX means transmit, usually showing data being sent from the board. A TX indicator LED can help you see when the board is communicating or uploading code.
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