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.


The two STEMMA buttons are connected to D4 and D3 STEMMA ports. The mini oval speaker plugs into the SPEAKER port. These components are plug and play so no soldering is required, yay!

This guide was first published on Jan 29, 2020. It was last updated on Jun 12, 2024.

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

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