The diagram below provides a visual reference for wiring of the components. This diagram was created using the software package Fritzing.

Adafruit Library for Fritzing

Use Adafruit's Fritzing parts library to create circuit diagrams for your projects. Download the library or just grab individual parts. Get the library and parts from GitHub - Adafruit Fritzing Parts.

Wired Connections

The Feather M4 Express is installed on top of the Proto FeatherWing using Headers. The NeoMatrix is wired to the Proto FeatherWing so that the Feather can be easily swapped.

  • 5V from NeoMatrix to 3V on Proto FeatherWing
  • GND from NeoMatrix to GND on Proto FeatherWing
  • DIN from NeoMatrix to Pin #6 on Proto FeatherWing
  • Switch to EN and GND on Proto FeatherWing


The Adafruit board can be powered via USB or JST using a 3.7v lipo battery. In this project, a 1200mAh lipo battery is used. The lipo battery is rechargeable via the USB port on the board. The switch is wired to the enable and ground pins on the board.

This guide was first published on Aug 18, 2020. It was last updated on Jul 14, 2024.

This page (Circuit Diagram) was last updated on Mar 08, 2024.

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