LED Gumball Machine
Contributors:
Nate
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!
Logic Levels
Learn the difference between 3.3V and 5V devices and logic levels.
Data Types in Arduino
Learn about the common data types and what they signify in the Arduino programming environment.
MIDI Tutorial
Understanding the Musical Instrument Digital Interface.
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.
ISL29125 RGB Light Sensor Hookup Guide
A guide to help you integrate the ISL29125 RGB light sensor breakout board into your electronic projects.
Reed Switch Hookup Guide
Magnetically-actuated reed switches are the perfect component for non-contact proximity sensors. This tutorial provides a quick overview and example hook up.
AT42QT101X Capacitive Touch Breakout Hookup Guide
Learn how to use the simple SparkFun AT42QT1010 and AT42QT1011 capacitive touch breakout boards.
SparkFun Qwiic MicroPressure Hookup Guide
Get started using your Qwiic MicroPressure breakout board with this hookup guide.