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!

PCB Basics

What exactly IS a PCB? This tutorial will breakdown what makes up a PCB and some of the common terms used in the PCB world.

What is a Circuit?

Every electrical project starts with a circuit. Don't know what a circuit is? We're here to help.

Button and Switch Basics

A tutorial on electronics' most overlooked and underappreciated component: the switch! Here we explain the difference between momentary and maintained switches and what all those acronyms (NO, NC, SPDT, SPST, ...) stand for.

LilyPad Basics: E-Sewing

Learn how to use conductive thread with LilyPad components.

Hackers in Residence - Hacking MindWave Mobile

Review, teardown, and hacking tutorial for the MindWave Mobile, a $99 commercial grade EEG sensor.

SparkFun 9DoF IMU (ICM-20948) Breakout Hookup Guide

How to use the SparkFun 9DoF ICM-20948 breakout board for your motion sensing projects. This breakout is ideal for wearable sensors and IoT applications.

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!

SparkFun RTK Express Hookup Guide

Learn how to use the enclosed RTK Express product to achieve millimeter level geospatial coordinates.