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

NeoPixel Strip

  • DIN to NeoPixel Port on HalloWing M4
  • 5V to NeoPixel Port on HalloWing M4
  • GND to NeoPixel Port on HalloWing M4


  • 2-pin JST cable to On/Off Switch with JST


  • 2-pin JST cable to battery port on HalloWing M4


The Adafruit board can be powered via USB or JST using a 3.7v lipo battery. In this project, a 4400mAh lipo battery is used. The battery is rechargeable with the USB port on the Feather board. The switch features 2-pin JST connector for connecting the battery to the Feather.

This guide was first published on Oct 19, 2020. It was last updated on Jun 03, 2024.

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

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