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.
Pulse Width Modulation
An introduction to the concept of Pulse Width Modulation.
LogicBlocks & Digital Logic Introduction
Introducing fundamental digital logic concepts and LogicBlocks
ASCII
A brief history of how ASCII came to be, how it's useful to computers, and some helpful tables to convert numbers to characters.
INA169 Breakout Board Hookup Guide
How to interface with the INA169 Breakout Board to measure current.
Hackers in Residence - The ElectricBone
Drum machines and keyboards have been the standard for making digital music, but how do you make electronic music if you're trained to play the trombone? One of our Hackers in Residence, Carlos Mello, took it upon himself to find a solution to that very question.
Wireless Timing Project
Time for racing, let's make a wireless timing device using ESP32 wireless communication.
SparkFun Absolute Digital Barometer - LPS28DFW (Qwiic) Hookup Guide
Get started adding water-resistant pressure sensing using the SparkFun Absolute Digital Barometer - LPS28DFW (Qwiic) following this guide.