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!
Pull-up Resistors
A quick introduction to pull-up resistors - whey they're important, and how/when to use them.
Pulse Width Modulation
An introduction to the concept of Pulse Width Modulation.
LogicBlocks & Digital Logic Introduction
Introducing fundamental digital logic concepts and LogicBlocks
Lessons in Algorithms
Learn techniques on how to use Finite Impulse Response (FIR) filters and other data-processing tools to turn data into information.
Creating a Humidor Control Box
Because some of our boards need to be re-humidified after reflow, we decided to make our own humidor. This tutorial will focus on how to model a project in 3D and then fabricate it using a CNC routing machine.
Electret Mic Breakout Board Hookup Guide
An introduction to working with the Electret Mic Breakout Board.
AS726X NIR/VIS Spectral Sensor Hookup Guide
It's now easier than ever to measure and characterize how different materials absorb and reflect different wavelengths of light. The AS726X spectral sensors allow you to detect wavelengths in the visible range (VIS) and near infrared range (NIR)!
SparkFun Triple Axis Accelerometer Breakout - BMA400 (Qwiic) Hookup Guide
Add low power triple axis motion monitoring to your Qwiic project using the SparkFun Triple Axis Accelerometer Breakout - BMA400 (Qwiic).