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!

Polarity

An introduction to polarity in electronic components. Discover what polarity is, which parts have it, and how to identify it.

Lessons in Algorithms

Learn techniques on how to use Finite Impulse Response (FIR) filters and other data-processing tools to turn data into information.

Magnetic Levitation

This tutorial will show you how to build a magnetic levitation circuit using common parts.

Sending Sensor Data Over WiFi

This tutorial will show you how setup a simple peer-to-peer connection to send and receive sensor data between two ESP32 WiFi boards.

HIH-4030 Humidity Sensor Hookup Guide

Measure relative humidity with SparkFun's HIH-4030 Humidity Sensor Breakout.

LilyPad Light Sensor V2 Hookup Guide

How to hook up the LilyPad Light Sensor as well as some project ideas and example code.

SparkFun GPS-RTK Dead Reckoning ZED-F9R Hookup Guide

The u-blox ZED-F9R is a powerful GPS-RTK unit that uses a fusion of IMU, wheel ticks, a vehicle dynamics model, correction data, and GNSS measurements to provide highly accurate and continuous position for navigation in the difficult conditions. We will quickly get you set up using the Qwiic ecosystem through Arduino and Python so that you can start reading the output!

Air Quality Sensor - SGP40 (Qwiic) Hookup Guide

Get started measuring indoor air quality with the SparkFun Air Quality Sensor - SGP40 (Qwiic) Hookup Guide.