LED Gumball Machine

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Contributors: Nate

Resources and Going Further

We hope you've enjoyed reading about our LED dispensing gumball machine. If you liked this one, there's tons more!

Voltage, Current, Resistance, and Ohm's Law

Learn about Ohm's Law, one of the most fundamental equations in all electrical engineering.

MIDI Tutorial

Understanding the Musical Instrument Digital Interface.

Getting Started with OBD-II

A general guide to the OBD-II protocols used for communication in automotive and industrial applications.

LilyPad Basics: Powering Your Project

Learn the options for powering your LilyPad projects, LiPo battery safety and care, and how to calculate and consider power constraints on your projects.

Current Sensor Breakout (ACS723) Hookup Guide

Learn how to measure the current consumption of your project using the ACS723 Current Sensor.

Qwiic Ultrasonic Distance Sensor (HC-SR04) Hookup Guide

Get started with the Qwiic Ultrasonic Distance Sensor!

Air Velocity Sensor Breakout - FS3000 Hookup Guide

Get started with the Air Velocity Sensor Breakout - FS3000!

Analog MEMS Microphone (VM2020) Hookup Guide

Get started with the SparkFun analog MEMS microphone breakout board! In this tutorial, we will be connecting the differential MEMS microphone to an Arduino using the WM8960 audio codec.