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!
Voltage Dividers
Turn a large voltage into a smaller one with voltage dividers. This tutorial covers: what a voltage divider circuit looks like and how it is used in the real world.
Logic Levels
Learn the difference between 3.3V and 5V devices and logic levels.
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.
I2C
An introduction to I2C, one of the main embedded communications protocols in use today.
ISL29125 RGB Light Sensor Hookup Guide
A guide to help you integrate the ISL29125 RGB light sensor breakout board into your electronic projects.
SIK Keyboard Instrument
We can use the parts and concepts in the SparkFun Invetor's Kit to make a primitive keyboard instrument.
micro:climate Kit Experiment Guide
A weather station kit that is built on top of the inexpensive, easy-to-use micro:bit and Microsoft MakeCode.
Pyboard Hookup Guide
Getting started with the Pyboard using MicroPython.