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!
Light
Light is a useful tool for the electrical engineer. Understanding how light relates to electronics is a fundamental skill for many projects.
Hexadecimal
How to interpret hex numbers, and how to convert them to/from decimal and binary.
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.
External IO and Metastability
Why external signals can cause metastability and how to use constraint files to manage this
MEMS Microphone Hookup Guide
Get started with the SparkFun analog MEMS microphone breakout board with Arduino! Create a volume unit meter with the ADMP401 or ICS-40180 to react to sound before building your sound visualizer!
LIS3DH Hookup Guide
A guide to connecting the LIS3DH to a microcontroller and using the Arduino library.
Rotary Dial Kit Assembly Guide
Put together your Rotary Dial Kit and light it up with our Arduino example code!
Qwiic Atmospheric Sensor (BME280) Hookup Guide
Measure temperature, humidity, barometric pressure with the SparkFun Atmospheric Sensor Breakout BME280 (Qwiic).